Hello, from Milwaukee the home of Harley Davidson! I’ve never had the money to buy a Harley, but it sure would be cool to have a mini Harley motor! Great video I really enjoyed it
BECAUSE OF SCAMMERS TRYING TO IMPERSONATE ME AND TELLING PEOPLE THEY WON, ALL COMMENTS ON THIS VIDEO WILL BE APPROVED BY ME BEFORE THEY WILL BE VISIBLE. IF THEY DON’T SHOW UP RIGHT AWAY, BE PATIENT, THEY WILL. Check out www.Stirlingkit.com to see all the engines they sell. This engine specifically is: bit.ly/3BdznPm. Have a great weekend all you beautiful people!
@@Mongo63a this is a baby johnson. I'm sure he doesn't want to go to jail for joking about playing with it. Oh god, what have I done, now they're going to come after me :Þ
@farmcraft101 there's someone sending messages to people telling them they are the selected winner. Look at the comments, they have commented on several.
Some jackhole has spammed every comment with, "you're the winner", in an attempt to scam folks. Out of what, I don't know. But it is clearly not you and it is on every comment. I'm hoping there's something you can do to get this jackhole out of here. Fingers crossed, you have the power!!
AA friend of mine who owned a pan head chopper once told me on a ride to a rally, "There are Pan people, and people who want to be Pan people." My motorcycle is also a Harley with a dual cam 103. As a lifetime modeler I can appreciate the craftsmanship in this engine. If you choose my comment, I must admit I will donate it to my local dealer's parts department for display.
As a kid I was always taking things apart just to see how they worked. The cool thing is that I could usually put them back together . This is a great example of how we, who are mechanically inclined, of how we learn. This is awesome!
I took apart our one and only Lawnmower and I couldn't get it back together. Mom was pretty pissed at me... had to buy another used one.. we didn't have a lot of money growing up. Thought I could make it run better.. lol
Let me correct you on one item. At 3:50, you suspected that the bolt you were trying to shorten entered a black hole, which is incorrect. I reality, very small parts are able to time travel into the future. No matter how hard you look, you will not find them until you arrive at the future time they have traveled to. When I eventually would find a part that I lost a while ago, I used to tell myself, "Ah, so this is where that part went to", now I tell myself "Ah, so this is WHEN that part went to" I don't even bother to look to hard anymore, I just get a new part, and wait to meet that old part again.🙂 Very awesome and great video otherwise, I thoroughly enjoyed it!
As you were cheerfully removing the valve collets I was mentally yelling "No! No! They'll fall through!", but, of course, you were intending to dismantle the engine regardless, so my concern was wholly unfounded. I hope that the lucky winner is someone who actually makes videos, and that we'll get to see what use the engine is put to. It could drive a model cyclecar, motorcycle or boat, or even run a tiny but functional generator, sawmill or circular saw...
This is coolest damn thing I’ve seen in a very long time. I’m an aircraft mechanic by trade, and my motorcycles are 45deg vtwins, so this is right up my alley. Fun fact, a Harley twin like this is literally a radial aircraft engine with 5 cylinders cut off. Apart from the cam layout, they’re exactly the same. This is the ultimate desk trophy, conversation piece, garage toy, what an incredible device to display and run and show off. Thank you so much for digging into it, showing the innards, walking through the troubleshooting on reassembly, and giving us a deep dive into this beautiful little engine. I can’t wait to have people crowd in my office to see it run.
I took my brand new mini bike engine apart when I was young. It took a day or two to reassemble I understand that the first 65 years of childhood are the most fun! Great vid! 😎
I've loved Harley Davidson Panheads since I was 10 years old when my brother in law came home from Vietnam he got a 1949 chopper. Had many Panheads all my life. I was a machinist until my back decided to retire me from the best job I've ever had. Many dreams of building an engine such as this, so one could imagine when this little engine came out I've been in awe of it Unfortunately at this point I'm working with a very small fixed income even though this engine is extremely reasonably priced for it's engineering quality. To purchase one now is not much different to me than purchasing a real one. Long story short to win this engine would truly be a blessing for an old machinist. I've seen many different videos about these engines but yours is by far the most informative and interesting watched it many times and will probably watch it again...haha. If you should choose me I would use it in a scaled down replica chopper like I had when I was in my 20's. Thank you for the wonderful video and opportunity to possibly own a dream come true. Thanks again... Tom
That really is the coolest thing! Would be interesting to make some threaded exhaust headers with a larger I.d. to bring out some more 'mini thump' like big v twin.. but smaller!
One of these model engines would be very cool. to have in a shop class. Although you get to take apart a small one cylinder engine, this engine would be a better model because most motorcycles have a two cylinder engine.
I would've killed for stuff like this as a kid. These would be so great for kids interested in how things work or as a way to get kids interested in mechanical devices/how things work
My dad had me take apart an old Briggs&Stratton when I was a kid, more manageable part sizes, and didn't cost a thing. I'll do the same thing with my kid, if combustion engines are still a thing when the kid is 10yo.
$600 is a bit hefty for the first "tinker with" motor, and the parts and processes are so fine it would likely be frustrating. A Briggs, Honda, or clone single cylinder OHV, as another guy mentioned, is the ideal starting point. Now, a mechanically inclined kid, maybe teenaged, who's earned some credit by putting in his wrench time, that kid would get a kick out of this and respect it.
Taking something apart to learn is a great teaching experience. Putting it back together offers an even greater set of lessons! I liked the way you talked through every challenge you encountered. Great video and editing work, too! You have a great collection of talents and mentoring skills!
I loved listening to you work through the timing solution. Took me back to when I rebuilt my 1974 Honda XL 250 as a youngster - such a joy to finally crack the code & fire up the beast :)
this was probably one of the coolest videos I've seen on small engines and the operation, the theory, assembly, reassembly, addition of components (the base). it just reminded me of my school days and I had so much fun watching you do this. the editing on the video was incredible the slow motion the notes even when you made a mistake you pointed it out and that was great man that was awesome. keep it up. this was the first time being on your channel so I'll keep watching as long as you keep making stuff like this. loved the engine size. its so neat. you can put it into almost anything. I don't think you could put that much of a load on it though with those rubber o-rings but I love how you troubleshot the the timing and fuel ratios over all great video, great little engine. I wish I could afford it I'll definitely show this video to anybody interested in how a/an I.C.E. engine works. ill leave with a joke In a garage, where a famous heart surgeon was waiting for the service manager to take a look at his Mercedes, there was a loud mouth mechanic who's removing the cylinder heads from the motor of the car. He saw the surgeon waiting and lured him into an argument. He asked the doctor after straightening up and wiping his hands on a rag "look at this car I'm working on, I also open hearts, take valves out, and grind them down put in new parts and when I'm finished this baby will purr like a kitten so how come you get the big box when you and I are doing basically this same work" the surgeon very commonly leaned over and whispered to the loud mouth mechanic"try doing it with the engine running."
Unbelievable precision and craftsmanship. I worked with small 4 stroke engines with radio control airplanes when I was younger, I’m 88 now. Enjoyed your video.
Been riding scooters (mostly Harleys) for +55yrs. Still have all of my "parts" in tact. Ha. Saw a smaller version decades ago as a Harley promo that used glow plugs and ran on RC fuel mix. Smelled bad but ran great. Been hoping for something like this as the only other I've seen was custom made by a man and not for sale. I think Panheads were the most beautiful motor Harley ever made. The 88 Evo was the best for longevity. I just retired from 2 wheels as I felt I was losing just a bit of my edge and could no longer protect my wife as she deserves. I couldn't keep her off the back. Ha. Thanks for the tear down. Glad you figured the gearing and got timing going well. I may try to spring for one of these now that my scooter days are behind me. Thanks again.
I love small engines, especially Harley clones! And I love taking old engines and renewing them for use again, keep coming up with these great video’s!
I'm 23 years old, I own a motorcycle shop in oklahoma where we do maintenance on all types of motorcycles and we also do full custom chopper builds, usually around old harley engines. Let me tell you how close this is to a real Panhead Harley it's awesome. But at the same time it's so different (I'm sure as a result of being so small) it's genuinely just amazing to live in a time where there are running miniature Panheads being made.
This thing sounds so cool, would be awesome to build a custom chainsaw to power with it! Would mimic the motorcycle world almost, 2 strokes vs Harley v twins but for cutting wood
I'm a Nuclear Engineer but also an engine/car enthusiast. This is a very cool video and mini engine that I have not seen before. When you were fixing the spark timing you set it at TDC but from a theory side of it when the spark fires the explosion in the combustion chamber takes time to fill the chamber. To get the most amount of power out of the timing, the timing is set to be advanced so the explosion has filled the combustion chamber at TDC to get the most amount of force on the piston. With the timing set right at TDC, the engine will still run but the gas mixture will not burn at the right efficiency and the engine won't produce the maximum amount of power. Also, it can affect the carburetor idle adjustment because all of the gas isn't burning in the cylinder already. So the adjustment screw won't help much because due to the spark timing there is too much fuel in the combustion chamber and the screw can take fuel away but not enough so the engine runs the same no matter how much you turn the screw. This is the problem you are having in the video. I am currently working on a Yamaha xs1100 and the carburetors are giving me a similar problem but it tuen out my idle mixture screw holes are damaged so I am not getting the response I need. This is a very good video that I enjoyed and I sent it to my father who is the one that taught me about cars and engines. He is going to be amazed at the quality and size of this engine. Thank You for sharing!
I have absolutely no use for that engine, but it would look awesome on my shelf and would make a great conversation piece. Curious what others would actually use it for. Great job.-Ed
It would be great in a model airplane application. I have a couple of dozen four-stroke engines including two boxer style twin cylinder four-strokes that are VERY similar in nearly every way to the engine in this video. The carb used on this engine even appears to be identical to the carbs used on many of my engines. The white box the author keeps calling a distributor is actually an electronic ignition run by a Hall sensor placed on the crank case which is activated by a magnet placed on the crank shaft. Every time the magnet passes under the Hall sensor the ignition sends a spark to the plug. In regards to the size of this engine, it is not really as "amazingly tiny"" as the author seems to think. Model airplane engine manufacturers have been making single and multiple cylinder four-stroke engines this size and even much smaller than this one for decades and they are very reliable, powerful and smooth running pieces of art. All that aside, this is still a very beautiful piece of engineering and I would love to have one. To view engines that I am talking about just do a web search on OS or Saito four-stroke model airplane engines.
Agreed re RC airplanes, but my favorite small engine was a 12 cyl Ferrari engine, fits in the palm of your hand and literally screams when the builder revs it up. Having owned one, I have to say that other than size, I couldn’t tell the difference. That would be something to see in a P-51 or a Spitfire. Maybe someone has built a model of a P-51 engine. I would love to see that. I used to fly RC models when I was younger (back in the ‘80’s) I’m just thinkin’ of the fun your havin’! Enjoy...
From a Honda CT 70 to a Hodaka 100 super rat...to a74’ Elsinore 125...to a Husqvarna 250, 390, 430.... to a Maico 490...to a KTM 300, 540... to a Yamaha YzF 450. Motorcycles have played a significant role in my life.... riding, learning the mechanics of 2 strokes and 4,strokes.... 25 hrs of off road racing, friendships made, memories created . Now with 3 young grandsons I get the opportunity to play another role, to coach and teach them what I learned in a way that’s fun and enlightening much like your video. Something you look forward too. They say...”the difference between men and boys is the price of their toys” to a large extent is true...but this little motor is every bit as exciting as my 450. The only thing I’m aware of that can take you back in time to a exact moment, is either sound or smell
Probably the neatest little engine I've ever seen! Would definitely be a cool conversation starter! Only thing that could make it better is if it was a Johnson 😏😂 Side note: I've learned a lot in life by taking things apart and figuring out how they work. It's what led me to wanting to fix and make stuff with my hands. Now, I'm a mechanic and a carpenter and I couldn't be happier. Great advice at the end!
V 45 twins large and small quite often have the spark fire, same spark same time. One cylinder is slightly advanced and the other is slightly retarded just by orientation in design. no spark control is necessary between cylinders other than tdc. This little discrepancy in firing makes one a hotter cylinder set forward for cooling and the other cylinder being cooler set behind blocked from the moving air to build some heat. Together this equals a simple happy v twin motor operating on one spark for over 100 years. Firing back to back at the same time is where the infamous. potato potato potato potato sound appears. Simple and brilliant and works like a charm.
Fascinating video. I've been a nut all my life about how things work. Was always taking things apart and figuring out how to put them back together. Got my butt beat good when my mom caught me taking my grandfather's mantle clock apart. Had gears, cams and bearings all spread out on a bench in the garage. Managed to figure out how it worked and got it all back together though. Every mechanical toy I ever got ended up on that same bench. Grew up to build 13 harleys and several hot rod cars. Was a machinists mate in the US Navy keeping ships running. Worked for a railroad repairing railcars and locomotives. I'm retired now and have a sweet Harley and a righteous Mustang in the garage.
We the folks of California would like a tiny catalytic converter (CARB compliant) obviously, EGR, and an Ecu for the required o2 sensors please. Like to see her with at least tier 3 level emissions.
I had to send this video to my brother, I had a 1950 panhead and he had a 1956 panhead that he still has, I said this guy looks like we did back in the day when we was tearing them apart and didn't know what we was doing, but like you we always manage to get them back together and down the road, thanks for sharing
Never realized how simple a Harley engine was. And the model engine has the same recognizable exhaust note. I'd like to see an electric start and some blinking lights just for the hell of it!
Hello again, Panhead Dave here, my son Ian and Cindy my wife,(she's the one that gave me my panhead for my 19th birthday) were blown away when I showed them your engine, we all agree it's a work of art, and they both would hope that you would consider that I might be worthy of the prize you are offering, my appreciation of these classic motorcycles has made them members of our family,, and I've been dedicated to keeping these machines alive and visible to others who appreciate the aesthetics and all that goes with owning and regularly riding antique works of functional art, regardless of outcome, thank you again for sharing this beautiful machine with all of us, db
Years ago, I got my kids a plastic V-twin motorcycle engine that could be taken apart and reassembled. It was a great “3-D puzzle” that only came apart and went back together in one particular order. They loved it and learned a bunch of stuff about engines in the process. If I had this we’d be taking this apart and putting it back together too. Make it the advanced class graduating from the plastic engine. I don’t think you have the proper spark advance set for ignition timing. It should be before top dead center. If compression is weak, there may be an issue with valve clearance or valve sealing from switching parts that appeared to be “the same”. Can check valve clearance easily enough with feeler gauges. Could check valve sealing with marking dye and lap the valves to the seats if necessary. Oh, the stuff that they could learn with this…
Something like this would be amazing to have, its been my passion to work on engines and this would be a perfect starting point. I've been a tinkerer all my life and I've always loved taking things apart and putting them back together again. It would be a blessing to have this wonderful engine.
It's ok to change plug wires from either cylinder. Harley 45' V twins coil discharges twice. One spark is always on its siblings' exhaust stroke. Old school is cool! These poweplants were designed and developed 100+ yrs ago. Common crankpin, and all. No crankshaft, so to speak, flywheels! I've always wanted to use one on a Beechcraft, but a scale engine would be perfect on an R/C aircraft. Thanks for sharing man.
I just appreciate the fact that a man of your knowledge and skill can reverse engineer someone else’s brilliant work and have a constructive opinion or suggestion without tearing the builder down. I agree with your synopsis of the build and like you I would have wanted to keep that fine piece of a machinists artistry for myself as well. From what I can tell you have good taste in machines. I look forward to seeing more 🤙
Thanks for posting this Jon. Very interesting. I can confirm your assertion that small hardware which goes flying in the shop ends up falling into a black hole. Just this past weekend, I was securing my newly-purchased Yost ADI-5 vise to the workbench. I bought 3 bolt assemblies (bolt, 2 washers, nut and nylon nut) at Ace Hardware earlier in the day. The holes were drilled and it was time to bolt it on. Well, while separating one of the bolt assemblies, the nut fell. I heard it "ting" something on the way down, but I didn't see where it was going because I had my reading glasses on, so everything below my waist was blurry. For about an hour, I searched for that nut on, under, and behind everything within about 10 feet. I also swept the floor and ran a magnet over the dust & dirt pile. Nothing. Just. . .gone. 🤔 Mean ol' shop black holes. 😉
This is an excellent video, it was like watching a movie, it has a little drama, suspense, and the happy ending. I loved how you took the time and went step by step showing the engine breakdown and reassembly. I may have just added one thing on the reassembly since you had it all apart, I wish you would have machined little timing marks on the gears for future reference and made it even easier for the simple minded to put this engine back together. Awesome job showing how to figure out the timing instead of editing it out.
I am truly fascinated with the engineering detail of this mini. All things being equal, I watched a video where the person made exhaust pipes and shaped them to look exactly like Harley did. When the engine was idling, it sounded just like its big brother. It is magnificent model engine. I am really impressed.
You are supposed to time it so it fires before top dead center also that other nipple coming out of the case is used to pressurize the fuel tank, I am surprised it actually drew fuel up that hose
So, the comments will determine who the give-away goes to..sounds like fun. I actually thought about buying one of these to give to my neighbor friend here in So. Cal. He has two Harleys and I know he would just love the heck out of this thing..so, if you gave it to me, I would give it to him. The way your video is, it really simplified things for me, the way you slowed down to show what you were doing AS you did it ; taking apart and putting together, I learned a lot. I'm a machinist and at the start of the video I saw you making that base and I thought, why doesn't he just use a thicker plate so he can counter-bore the bottom for the SHCS's. So it was pretty cool to see, later in the vid you made a new base..I thought, yea, perfect! Also, where the ground wire is attached, right below that is what looks like about a .750 hole with two small holes beside it, I believe that is for a little starter motor if you want to avoid those drill motor issues. But that was a good idea and a good fix, the way you press fit those pieces together. So, I'm wondering where I put my home address for your convenience when you're sending out that give-away. Thank you and thank you in advance from my neighbor Rick.
That's a Panhead motor made from 1948 to 1965. Love those motors. As far as the pushrods go the longest one goes on the front exhaust the second longest one rear exhaust and the middle two intakes are the same length. It would be super cool to make a frame and all for the motor to fit into.
Excellent video! There is nothing like taking apart an excellent running engine and going through the process of getting it to run again. We cannot leave well enough alone- "If it ain't broke don't fix it!" I can imagine in 1000 years someone will unearth this engine and be amazed at how it was built. Internal combustion engines make real power ,heat,smell and noise, you just can't get that from a battery and an electric motor. It's like that little Harley has a soul !
You really showed how this model is a great scaled-down version. I loved seeing the inside, and how remarkably similar everything is to my HD 45. Thanks!
A way to get the spark timing easier maybe removing the screw from the hole just above the flywheel. On a full-size Harley engine that is the timing hole and has marks on the flywheels inside the cases', you might want to look to see if the factory took the time to mark TDC.
I don't know if you are a Harley mechanic or not ,but you did a fantastic job of rebuilding that motor I'm impressed with that motor and your skills. That motor is so much like a full size Panhead Harley motor it's like they washed it in hot water and then dryed it and it shrunk that has to be the coolest engine I've ever seen I have a huge H-D collection of die cast models and that would be the cherry on top of my collection.
Yes! Just ordered one for the RC motorcycle I’m building, should be interesting to see how much power it can actually deliver. Valve float will be a likely weak spot😎
The lumpy but quickened idle sound of the running engine, then you blip the throttle: the pure poetry of an XR750. You've basically got a teacup flat track racer sitting on your bench. So how cool is that? That's how cool it is!
Hey there, welcome to Farmcraft... I love to hear those words each time I run through a video of yours. Thanks for all the effort and spirit you put into each of these. God bless you 🙏
Just like a surgeon - good explanation on prognosis and treatment and fine technique on procedure. The brothers Davidson and William Harley would be proud.
I got to build a porch the proper way, learned to cut treads on a lathe, and got to see the inner workings of a classic pan head harley, all in just one lazy afternoon. This Guy is like the Dad and Grandad I never had!
After watching with my son. We came up with the idea of having a class at school (where I work) and have them do the same thing as you did. As in out of box start and run do a tear down and back together and make it run. Thank you for this wonderful educational video.
Sweet little engine. I took apart and rebuilt my first Harley when I was 14, ( 56 now ) and I've gotta say, it looks like this one is built better, lol. Nice job gettin her back together and running! ✌
Always going above and beyond just showing how it's done John. I love watching your videos since you aren't afraid to show when you mess up, and are always explaining how you are doing things. Keep up the great videos and I'll keep watching them.
In the heart of steel and chrome so bright, Miniature V-twin, a captivating sight. Pistons pump, valves dance, and gears align, In this tiny Harley, the power's so fine.
Me and my son watched this video. He is a senior in high school. This video inspired him to want to work on Harley Davidson motors after he graduates. Thanks it was a great video. Hopefully my son becomes a great mechanic.
I wonder if you could get a clutch assembly to try it in miniature 4wheeler with remote controls. I am 77yrs old and I am amazed with these small parts. I was a class “ A “ auto mechanic here in Canada. The rpm are mind boggling. I would mount it to operate small machines.
Good job troubleshooting that gear train. The panhead motor had a distributed where the ignition wires come out that cover is what it looks like and the opening behind it is for the generator
You are a mechanical genius to be able to do all the things you do in all of your videos from this super small engine to working on your old caterpillar dozer and other farm equipment. Fantastic job well done.
It’s a decent replica of a 1948-1965 Harley Panhead engine. I recently graduated from M.M.I.’s Harley tech. With several new friends. Unfortunately one of them just lost his life while taking a customer’s bike on a test ride. He would have loved this.
Since finding your channel I have been binge watching your videos and have to say your channel is one of the best, IF not the best one on TH-cam. Your Knowledgeable in each and every video and the way you explain things, not to mention your filming is SPOT on. I have seen these small engines before but seeing you tear it down and put it back together was awesome. I am glad I came across your channel and for that I Thank You!
What a beautiful engine, The Panhead engine is one of the few engines that had made Harley a legendary motorcycles. In love for Panhead as well as shovelhead.
The reason for the spark both firing at the same time. The compression stroke is on one cylinder and when the 2nd cylinder fires at the same time, that cylinder is on the exhaust stroke. Basically dead air. It's the same way with many modern fuel injected engines that have Distributoress Ignition System. (DIS) where one coil fires for 2 cylinders at the same time. Many GM cars starting in the late 80's had this setup for a long time until Coil On Plug (COP) systems started becoming more popular.
This video brings me back to when my dad and I were figuring out the timing on his Vulcan 750. I was 18 at the time and never been on a motorcycle of that size. Well, once we were done, my dad threw a helmet at me and said to take it for a spin. I was very inexperienced and I ended up sprawled out on the street about three houses down. I wasn’t injured, but the chrome was all scratched up and the lights were smashed. That was the last time my dad ever let me on his bike!
With gas prices they way they are, this looks like an economical replacement for my current kick start panhead engine. Pretty cool model. Great detail. Impressive.
Nice way to introduce me to a MODEL CITIZEN. I'm a V-TWIN fanatic but on a slightly larger scale. Problems arise no mater the size. Watch out where the hardware flys...
I’ve run Harley’s over 45 years I still own my first one that I bought new in 82 it’s my beloved Shovelhead in a FXWG! I also own which I bought new a 92 Softail , Evo Engine! I must say this little engine is the coolest I’ve seen And plus it’s sound is amazing! I think that what would really be the icing on the cake when you have sitting in some cool creative display is being it am old Panhead replica is maybe put a couple of drops of oil under in since most of they old pans were notorious leakers especially the early ones the ran what was called a 100% lost system , by design the oil that lubbed the primary and drop out on the rear main drive chain! Ya gotta love em!!! I’ve seen these awesome little works of art before and dreamed I could justify having one , but my budget for tinkering with the real ones , realistically i could never do it , but thanks for putting together a great video about a really great little piece of working history!!! Very nicely done!!!!
the oil tank on a Harley engine is separate and normally sits behind the rear cylinder and above the trans(also separate from the engine) that inlet on the back /rear of the crankcase is an oil inlet
There are 3 channels that I absolutely love and are the main channels I watch on TH-cam. Mustie1, South Main Auto and Pine Hollow Diagnostics. I found your channel last week and I can't stop. Outside of how methodical and OCD, he has that well spoken "radio voice" which puts his channel over the top in my list. I now have a fourth channel and it is number 1. Thanks for all the amazing content.
I am 65, retired and have been riding Harleys since I was 20. I've always wanted a Panhead but never got the opportunity to buy one when I was younger. I have been collecting miniature Harleys for the past 35 years. I would love to have one of these little Panhead motor replicas but can't afford one now with a fixed income and prices of everything what they are. Well, that's my comment. Please keep the great videos coming. I love your channel. Thanks
I've been eyeballing this little panhead for a few months. Best dang video of it yet. Loved the break to check the calf. I'll get one eventually but my full size harley is sucking out all my funds right now.
Well that's just to cool for school, being a machinist for decades I know what has been put into it. Nice work also I own a 56 pan 42 years have split cases on a few😉 I can appreciate your work
My son is about to turn 8 years old. I'm getting him a model 4 cylinder engine kit we can build together. Maybe next year I will get him one of these! What a great way to learn how an engine works! Thanks for the video and chance for someone to win the motor!
Damn! You are an exceptional mechanic and machinist. I'm pretty good myself, but I wouldn't want to compete with you. Your videoing and editing are also exceptional. I understand and love machines and have several in my collection and now need to get one of these - forget the lack of manufacture literature; this video really tells it all in a manner that one can understand and follow. I liked and subscribed. Thank You.
Good old harley davidson pan head design. The reason they invented Loctite since 1903!
Hello, from Milwaukee the home of Harley Davidson! I’ve never had the money to buy a Harley, but it sure would be cool to have a mini Harley motor! Great video I really enjoyed it
BECAUSE OF SCAMMERS TRYING TO IMPERSONATE ME AND TELLING PEOPLE THEY WON, ALL COMMENTS ON THIS VIDEO WILL BE APPROVED BY ME BEFORE THEY WILL BE VISIBLE. IF THEY DON’T SHOW UP RIGHT AWAY, BE PATIENT, THEY WILL. Check out www.Stirlingkit.com to see all the engines they sell. This engine specifically is: bit.ly/3BdznPm. Have a great weekend all you beautiful people!
Meep meep
What no Johnson jokes? Not even a dad joke? Has covid caused you to sink so low?
@@Mongo63a this is a baby johnson. I'm sure he doesn't want to go to jail for joking about playing with it. Oh god, what have I done, now they're going to come after me :Þ
@farmcraft101 there's someone sending messages to people telling them they are the selected winner. Look at the comments, they have commented on several.
Some jackhole has spammed every comment with, "you're the winner", in an attempt to scam folks. Out of what, I don't know. But it is clearly not you and it is on every comment.
I'm hoping there's something you can do to get this jackhole out of here. Fingers crossed, you have the power!!
AA friend of mine who owned a pan head chopper once told me on a ride to a rally, "There are Pan people, and people who want to be Pan people." My motorcycle is also a Harley with a dual cam 103. As a lifetime modeler I can appreciate the craftsmanship in this engine. If you choose my comment, I must admit I will donate it to my local dealer's parts department for display.
As a kid I was always taking things apart just to see how they worked. The cool thing is that I could usually put them back together . This is a great example of how we, who are mechanically inclined, of how we learn. This is awesome!
I could never put them back together lol, which was fine untill i pulled apart my departed grandfathers pocketwatch
I took apart our one and only Lawnmower and I couldn't get it back together. Mom was pretty pissed at me... had to buy another used one.. we didn't have a lot of money growing up. Thought I could make it run better.. lol
Let me correct you on one item. At 3:50, you suspected that the bolt you were trying to shorten entered a black hole, which is incorrect.
I reality, very small parts are able to time travel into the future. No matter how hard you look, you will not find them until you arrive at the future time they have traveled to.
When I eventually would find a part that I lost a while ago, I used to tell myself, "Ah, so this is where that part went to", now I tell myself "Ah, so this is WHEN that part went to"
I don't even bother to look to hard anymore, I just get a new part, and wait to meet that old part again.🙂
Very awesome and great video otherwise, I thoroughly enjoyed it!
As you were cheerfully removing the valve collets I was mentally yelling "No! No! They'll fall through!", but, of course, you were intending to dismantle the engine regardless, so my concern was wholly unfounded.
I hope that the lucky winner is someone who actually makes videos, and that we'll get to see what use the engine is put to. It could drive a model cyclecar, motorcycle or boat, or even run a tiny but functional generator, sawmill or circular saw...
This is coolest damn thing I’ve seen in a very long time. I’m an aircraft mechanic by trade, and my motorcycles are 45deg vtwins, so this is right up my alley. Fun fact, a Harley twin like this is literally a radial aircraft engine with 5 cylinders cut off. Apart from the cam layout, they’re exactly the same. This is the ultimate desk trophy, conversation piece, garage toy, what an incredible device to display and run and show off. Thank you so much for digging into it, showing the innards, walking through the troubleshooting on reassembly, and giving us a deep dive into this beautiful little engine. I can’t wait to have people crowd in my office to see it run.
I took my brand new mini bike engine apart when I was young. It took a day or two to reassemble I understand that the first 65 years of childhood are the most fun! Great vid! 😎
Beware scammers. I think one tried to contact me and tell me I had won. ..🤔
I've loved Harley Davidson Panheads since I was 10 years old when my brother in law came home from Vietnam he got a 1949 chopper. Had many Panheads all my life. I was a machinist until my back decided to retire me from the best job I've ever had. Many dreams of building an engine such as this, so one could imagine when this little engine came out I've been in awe of it Unfortunately at this point I'm working with a very small fixed income even though this engine is extremely reasonably priced for it's engineering quality. To purchase one now is not much different to me than purchasing a real one. Long story short to win this engine would truly be a blessing for an old machinist. I've seen many different videos about these engines but yours is by far the most informative and interesting watched it many times and will probably watch it again...haha. If you should choose me I would use it in a scaled down replica chopper like I had when I was in my 20's. Thank you for the wonderful video and opportunity to possibly own a dream come true. Thanks again... Tom
That really is the coolest thing! Would be interesting to make some threaded exhaust headers with a larger I.d. to bring out some more 'mini thump' like big v twin.. but smaller!
Love Harleys always wanted a model like this but just can't afford it. Sounds awsome thanks for sharing
check out warped perception Channel here on TH-cam, the guy did just that
One of these model engines would be very cool. to have in a shop class. Although you get to take apart a small one cylinder engine, this engine would be a better model because most motorcycles have a two cylinder engine.
I would've killed for stuff like this as a kid.
These would be so great for kids interested in how things work or as a way to get kids interested in mechanical devices/how things work
My dad had me take apart an old Briggs&Stratton when I was a kid, more manageable part sizes, and didn't cost a thing. I'll do the same thing with my kid, if combustion engines are still a thing when the kid is 10yo.
No shit
$600 is a bit hefty for the first "tinker with" motor, and the parts and processes are so fine it would likely be frustrating. A Briggs, Honda, or clone single cylinder OHV, as another guy mentioned, is the ideal starting point. Now, a mechanically inclined kid, maybe teenaged, who's earned some credit by putting in his wrench time, that kid would get a kick out of this and respect it.
Taking something apart to learn is a great teaching experience. Putting it back together offers an even greater set of lessons! I liked the way you talked through every challenge you encountered. Great video and editing work, too! You have a great collection of talents and mentoring skills!
What an awesome little replica! The attention to detail in nearly replicating how the full sized Pan Head internals work is remarkable.
I loved listening to you work through the timing solution. Took me back to when I rebuilt my 1974 Honda XL 250 as a youngster - such a joy to finally crack the code & fire up the beast :)
Giving it away..joe m. that's cool I'll take it...
I own a 75 xl250 has been in my back yard for around 20 years
this was probably one of the coolest videos I've seen on small engines and the operation, the theory, assembly, reassembly, addition of components (the base). it just reminded me of my school days and I had so much fun watching you do this. the editing on the video was incredible the slow motion the notes even when you made a mistake you pointed it out and that was great man that was awesome. keep it up. this was the first time being on your channel so I'll keep watching as long as you keep making stuff like this. loved the engine size. its so neat. you can put it into almost anything. I don't think you could put that much of a load on it though with those rubber o-rings but I love how you troubleshot the the timing and fuel ratios over all great video, great little engine. I wish I could afford it I'll definitely show this video to anybody interested in how a/an I.C.E. engine works. ill leave with a joke
In a garage, where a famous heart surgeon was waiting for the service manager to take a look at his Mercedes, there was a loud mouth mechanic who's removing the cylinder heads from the motor of the car. He saw the surgeon waiting and lured him into an argument. He asked the doctor after straightening up and wiping his hands on a rag "look at this car I'm working on, I also open hearts, take valves out, and grind them down put in new parts and when I'm finished this baby will purr like a kitten so how come you get the big box when you and I are doing basically this same work" the surgeon very commonly leaned over and whispered to the loud mouth mechanic"try doing it with the engine running."
Unbelievable precision and craftsmanship. I worked with small 4 stroke engines with radio control airplanes when I was younger, I’m 88 now. Enjoyed your video.
Well, based on recent posts on this channel, a good motto for StirlingKit might be:
_More fun than playing with your Johnson!_
This one is good!
steve
Christopher Smith More fun than playing with your Girlfriend / wife ...
*And what were you thinkin' playin' with Dudes Johnson????*
that comment wasn't evinrude
How's about "The most fun you can have with your clothes on".
Been riding scooters (mostly Harleys) for +55yrs. Still have all of my "parts" in tact. Ha. Saw a smaller version decades ago as a Harley promo that used glow plugs and ran on RC fuel mix. Smelled bad but ran great. Been hoping for something like this as the only other I've seen was custom made by a man and not for sale. I think Panheads were the most beautiful motor Harley ever made. The 88 Evo was the best for longevity. I just retired from 2 wheels as I felt I was losing just a bit of my edge and could no longer protect my wife as she deserves. I couldn't keep her off the back. Ha. Thanks for the tear down. Glad you figured the gearing and got timing going well. I may try to spring for one of these now that my scooter days are behind me. Thanks again.
I love small engines, especially Harley clones! And I love taking old engines and renewing them for use again, keep coming up with these great video’s!
I'm 23 years old, I own a motorcycle shop in oklahoma where we do maintenance on all types of motorcycles and we also do full custom chopper builds, usually around old harley engines. Let me tell you how close this is to a real Panhead Harley it's awesome. But at the same time it's so different (I'm sure as a result of being so small) it's genuinely just amazing to live in a time where there are running miniature Panheads being made.
This thing sounds so cool, would be awesome to build a custom chainsaw to power with it! Would mimic the motorcycle world almost, 2 strokes vs Harley v twins but for cutting wood
I'm a Nuclear Engineer but also an engine/car enthusiast. This is a very cool video and mini engine that I have not seen before. When you were fixing the spark timing you set it at TDC but from a theory side of it when the spark fires the explosion in the combustion chamber takes time to fill the chamber. To get the most amount of power out of the timing, the timing is set to be advanced so the explosion has filled the combustion chamber at TDC to get the most amount of force on the piston. With the timing set right at TDC, the engine will still run but the gas mixture will not burn at the right efficiency and the engine won't produce the maximum amount of power. Also, it can affect the carburetor idle adjustment because all of the gas isn't burning in the cylinder already. So the adjustment screw won't help much because due to the spark timing there is too much fuel in the combustion chamber and the screw can take fuel away but not enough so the engine runs the same no matter how much you turn the screw. This is the problem you are having in the video. I am currently working on a Yamaha xs1100 and the carburetors are giving me a similar problem but it tuen out my idle mixture screw holes are damaged so I am not getting the response I need. This is a very good video that I enjoyed and I sent it to my father who is the one that taught me about cars and engines. He is going to be amazed at the quality and size of this engine. Thank You for sharing!
I have absolutely no use for that engine, but it would look awesome on my shelf and would make a great conversation piece. Curious what others would actually use it for. Great job.-Ed
Dude I would so try and make a RC Harley for my grandpa. And if he wouldn’t want one I’d make my Can-am into an RC as it does use a V-twin
It would be great in a model airplane application. I have a couple of dozen four-stroke engines including two boxer style twin cylinder four-strokes that are VERY similar in nearly every way to the engine in this video. The carb used on this engine even appears to be identical to the carbs used on many of my engines. The white box the author keeps calling a distributor is actually an electronic ignition run by a Hall sensor placed on the crank case which is activated by a magnet placed on the crank shaft. Every time the magnet passes under the Hall sensor the ignition sends a spark to the plug. In regards to the size of this engine, it is not really as "amazingly tiny"" as the author seems to think. Model airplane engine manufacturers have been making single and multiple cylinder four-stroke engines this size and even much smaller than this one for decades and they are very reliable, powerful and smooth running pieces of art. All that aside, this is still a very beautiful piece of engineering and I would love to have one. To view engines that I am talking about just do a web search on OS or Saito four-stroke model airplane engines.
Agreed re RC airplanes, but my favorite small engine was a 12 cyl Ferrari engine, fits in the palm of your hand and literally screams when the builder revs it up. Having owned one, I have to say that other than size, I couldn’t tell the difference. That would be something to see in a P-51 or a Spitfire. Maybe someone has built a model of a P-51 engine. I would love to see that. I used to fly RC models when I was younger (back in the ‘80’s) I’m just thinkin’ of the fun your havin’!
Enjoy...
From a Honda CT 70 to a Hodaka 100 super rat...to a74’ Elsinore 125...to a Husqvarna 250, 390, 430.... to a Maico 490...to a KTM 300, 540... to a Yamaha YzF 450. Motorcycles have played a significant role in my life.... riding, learning the mechanics of 2 strokes and 4,strokes.... 25 hrs of off road racing, friendships made, memories created . Now with 3 young grandsons I get the opportunity to play another role, to coach and teach them what I learned in a way that’s fun and enlightening much like your video. Something you look forward too. They say...”the difference between men and boys is the price of their toys” to a large extent is true...but this little motor is every bit as exciting as my 450. The only thing I’m aware of that can take you back in time to a exact moment, is either sound or smell
Probably the neatest little engine I've ever seen! Would definitely be a cool conversation starter!
Only thing that could make it better is if it was a Johnson 😏😂
Side note: I've learned a lot in life by taking things apart and figuring out how they work. It's what led me to wanting to fix and make stuff with my hands. Now, I'm a mechanic and a carpenter and I couldn't be happier. Great advice at the end!
V 45 twins large and small quite often have the spark fire, same spark same time. One cylinder is slightly advanced and the other is slightly retarded just by orientation in design. no spark control is necessary between cylinders other than tdc. This little discrepancy in firing makes one a hotter cylinder set forward for cooling and the other cylinder being cooler set behind blocked from the moving air to build some heat. Together this equals a simple happy v twin motor operating on one spark for over 100 years. Firing back to back at the same time is where the infamous. potato potato potato potato sound appears. Simple and brilliant and works like a charm.
Fascinating video. I've been a nut all my life about how things work. Was always taking things apart and figuring out how to put them back together. Got my butt beat good when my mom caught me taking my grandfather's mantle clock apart. Had gears, cams and bearings all spread out on a bench in the garage. Managed to figure out how it worked and got it all back together though. Every mechanical toy I ever got ended up on that same bench. Grew up to build 13 harleys and several hot rod cars. Was a machinists mate in the US Navy keeping ships running. Worked for a railroad repairing railcars and locomotives. I'm retired now and have a sweet Harley and a righteous Mustang in the garage.
Bartender asked what the V-twin owner wanted to drink. The V-twin owner responded "RUM RUM RUM RUM RUM RUM RUM"
So bad...yet it did make me lol. ;-)
I cant wait for a basket case! Would love to build one from parts to save money!
Thorough, clean, descriptive and nonsensical without any fluff or
Who ha.. "Just the facts Sir"
"Your" timing is spot on..
Harley "Pan Head" 101 , mini style. Awesome video! Very Cool looking engine. 👍❤️👍
We the folks of California would like a tiny catalytic converter (CARB compliant) obviously, EGR, and an Ecu for the required o2 sensors please. Like to see her with at least tier 3 level emissions.
I had to send this video to my brother, I had a 1950 panhead and he had a 1956 panhead that he still has, I said this guy looks like we did back in the day when we was tearing them apart and didn't know what we was doing, but like you we always manage to get them back together and down the road, thanks for sharing
Never realized how simple a Harley engine was. And the model engine has the same recognizable exhaust note. I'd like to see an electric start and some blinking lights just for the hell of it!
Hello again, Panhead Dave here, my son Ian and Cindy my wife,(she's the one that gave me my panhead for my 19th birthday) were blown away when I showed them your engine, we all agree it's a work of art, and they both would hope that you would consider that I might be worthy of the prize you are offering, my appreciation of these classic motorcycles has made them members of our family,, and I've been dedicated to keeping these machines alive and visible to others who appreciate the aesthetics and all that goes with owning and regularly riding antique works of functional art, regardless of outcome, thank you again for sharing this beautiful machine with all of us, db
Years ago, I got my kids a plastic V-twin motorcycle engine that could be taken apart and reassembled. It was a great “3-D puzzle” that only came apart and went back together in one particular order. They loved it and learned a bunch of stuff about engines in the process. If I had this we’d be taking this apart and putting it back together too. Make it the advanced class graduating from the plastic engine. I don’t think you have the proper spark advance set for ignition timing. It should be before top dead center. If compression is weak, there may be an issue with valve clearance or valve sealing from switching parts that appeared to be “the same”. Can check valve clearance easily enough with feeler gauges. Could check valve sealing with marking dye and lap the valves to the seats if necessary. Oh, the stuff that they could learn with this…
Something like this would be amazing to have, its been my passion to work on engines and this would be a perfect starting point. I've been a tinkerer all my life and I've always loved taking things apart and putting them back together again. It would be a blessing to have this wonderful engine.
I've been looking at this engine for a while now, it's absolutely beautiful and the workman ship is beautiful. I'd love to add one to my collection
It's ok to change plug wires from either cylinder. Harley 45' V twins coil discharges twice. One spark is always on its siblings' exhaust stroke. Old school is cool! These poweplants were designed and developed 100+ yrs ago. Common crankpin, and all. No crankshaft, so to speak, flywheels! I've always wanted to use one on a Beechcraft, but a scale engine would be perfect on an R/C aircraft. Thanks for sharing man.
Very cool teardown on this mini V twin Engine Jon 15:21 @FarmCraft101
I just appreciate the fact that a man of your knowledge and skill can reverse engineer someone else’s brilliant work and have a constructive opinion or suggestion without tearing the builder down. I agree with your synopsis of the build and like you I would have wanted to keep that fine piece of a machinists artistry for myself as well. From what I can tell you have
good taste in machines. I look forward to seeing more 🤙
Thanks for posting this Jon. Very interesting.
I can confirm your assertion that small hardware which goes flying in the shop ends up falling into a black hole. Just this past weekend, I was securing my newly-purchased Yost ADI-5 vise to the workbench. I bought 3 bolt assemblies (bolt, 2 washers, nut and nylon nut) at Ace Hardware earlier in the day. The holes were drilled and it was time to bolt it on. Well, while separating one of the bolt assemblies, the nut fell. I heard it "ting" something on the way down, but I didn't see where it was going because I had my reading glasses on, so everything below my waist was blurry. For about an hour, I searched for that nut on, under, and behind everything within about 10 feet. I also swept the floor and ran a magnet over the dust & dirt pile. Nothing. Just. . .gone. 🤔
Mean ol' shop black holes. 😉
This is an excellent video, it was like watching a movie, it has a little drama, suspense, and the happy ending. I loved how you took the time and went step by step showing the engine breakdown and reassembly. I may have just added one thing on the reassembly since you had it all apart, I wish you would have machined little timing marks on the gears for future reference and made it even easier for the simple minded to put this engine back together. Awesome job showing how to figure out the timing instead of editing it out.
I am truly fascinated with the engineering detail of this mini. All things being equal, I watched a video where the person made exhaust pipes and shaped them to look exactly like Harley did. When the engine was idling, it sounded just like its big brother. It is magnificent model engine. I am really impressed.
You are supposed to time it so it fires before top dead center also that other nipple coming out of the case is used to pressurize the fuel tank, I am surprised it actually drew fuel up that hose
The knowledge that you have as a mechanic had to come from a long time kudos to you bud
So, the comments will determine who the give-away goes to..sounds like fun. I actually thought about buying one of these to give to my neighbor friend here in So. Cal. He has two Harleys and I know he would just love the heck out of this thing..so, if you gave it to me, I would give it to him. The way your video is, it really simplified things for me, the way you slowed down to show what you were doing AS you did it ; taking apart and putting together, I learned a lot. I'm a machinist and at the start of the video I saw you making that base and I thought, why doesn't he just use a thicker plate so he can counter-bore the bottom for the SHCS's. So it was pretty cool to see, later in the vid you made a new base..I thought, yea, perfect! Also, where the ground wire is attached, right below that is what looks like about a .750 hole with two small holes beside it, I believe that is for a little starter motor if you want to avoid those drill motor issues. But that was a good idea and a good fix, the way you press fit those pieces together. So, I'm wondering where I put my home address for your convenience when you're sending out that give-away. Thank you and thank you in advance from my neighbor Rick.
That's a Panhead motor made from 1948 to 1965. Love those motors. As far as the pushrods go the longest one goes on the front exhaust the second longest one rear exhaust and the middle two intakes are the same length. It would be super cool to make a frame and all for the motor to fit into.
Excellent video! There is nothing like taking apart an excellent running engine and going through the process of getting it to run again. We cannot leave well enough alone-
"If it ain't broke don't fix it!" I can imagine in 1000 years someone will unearth this engine and be amazed at how it was built. Internal combustion engines make real power ,heat,smell and noise, you just can't get that from a battery and an electric motor. It's like that little Harley has a soul !
You really showed how this model is a great scaled-down version. I loved seeing the inside, and how remarkably similar everything is to my HD 45. Thanks!
A way to get the spark timing easier maybe removing the screw from the hole just above the flywheel. On a full-size Harley engine that is the timing hole and has marks on the flywheels inside the cases', you might want to look to see if the factory took the time to mark TDC.
I don't know if you are a Harley mechanic or not ,but you did a fantastic job of rebuilding that motor I'm impressed with that motor and your skills. That motor is so much like a full size Panhead Harley motor it's like they washed it in hot water and then dryed it and it shrunk that has to be the coolest engine I've ever seen I have a huge H-D collection of die cast models and that would be the cherry on top of my collection.
Are you sure you have the valves in the right holes, I think there is different intake and exhaust?
Yes! Just ordered one for the RC motorcycle I’m building, should be interesting to see how much power it can actually deliver. Valve float will be a likely weak spot😎
Usually you want the spark to happen a few degrees before top dead center. Usually 30 degrees BTDC.
The lumpy but quickened idle sound of the running engine, then you blip the throttle: the pure poetry of an XR750. You've basically got a teacup flat track racer sitting on your bench. So how cool is that? That's how cool it is!
Hey there, welcome to Farmcraft... I love to hear those words each time I run through a video of yours. Thanks for all the effort and spirit you put into each of these. God bless you 🙏
Just like a surgeon - good explanation on prognosis and treatment and fine technique on procedure. The brothers Davidson and William Harley would be proud.
I got to build a porch the proper way, learned to cut treads on a lathe, and got to see the inner workings of a classic pan head harley, all in just one lazy afternoon. This Guy is like the Dad and Grandad I never had!
After watching with my son. We came up with the idea of having a class at school (where I work) and have them do the same thing as you did. As in out of box start and run do a tear down and back together and make it run. Thank you for this wonderful educational video.
Sweet little engine. I took apart and rebuilt my first Harley when I was 14, ( 56 now ) and I've gotta say, it looks like this one is built better, lol. Nice job gettin her back together and running! ✌
Always going above and beyond just showing how it's done John. I love watching your videos since you aren't afraid to show when you mess up, and are always explaining how you are doing things. Keep up the great videos and I'll keep watching them.
In the heart of steel and chrome so bright,
Miniature V-twin, a captivating sight.
Pistons pump, valves dance, and gears align,
In this tiny Harley, the power's so fine.
Me and my son watched this video. He is a senior in high school. This video inspired him to want to work on Harley Davidson motors after he graduates. Thanks it was a great video. Hopefully my son becomes a great mechanic.
Very cool. Thanks for taking the time to video all of this!
I wonder if you could get a clutch assembly to try it in miniature 4wheeler with remote controls. I am 77yrs old and I am amazed with these small parts. I was a class “ A “ auto mechanic here in Canada. The rpm are mind boggling. I would mount it to operate small machines.
Good job troubleshooting that gear train. The panhead motor had a distributed where the ignition wires come out that cover is what it looks like and the opening behind it is for the generator
You are a mechanical genius to be able to do all the things you do in all of your videos from this super small engine to working on your old caterpillar dozer and other farm equipment. Fantastic job well done.
It’s a decent replica of a 1948-1965 Harley Panhead engine. I recently graduated from M.M.I.’s Harley tech. With several new friends. Unfortunately one of them just lost his life while taking a customer’s bike on a test ride. He would have loved this.
Since finding your channel I have been binge watching your videos and have to say your channel is one of the best, IF not the best one on TH-cam. Your Knowledgeable in each and every video and the way you explain things, not to mention your filming is SPOT on. I have seen these small engines before but seeing you tear it down and put it back together was awesome. I am glad I came across your channel and for that I Thank You!
That little thing is awesome. Being able to see how the spark timing relates to the crank, cam and valves is a great learning tool.
What a beautiful engine, The Panhead engine is one of the few engines that had made Harley a legendary motorcycles. In love for Panhead as well as shovelhead.
How customizable do you think these little v twins are? Any room to have fun?
Try a little oil to improve compression, and a fan to keep it kewel while running! What a cute motor!
The reason for the spark both firing at the same time. The compression stroke is on one cylinder and when the 2nd cylinder fires at the same time, that cylinder is on the exhaust stroke. Basically dead air. It's the same way with many modern fuel injected engines that have Distributoress Ignition System. (DIS) where one coil fires for 2 cylinders at the same time. Many GM cars starting in the late 80's had this setup for a long time until Coil On Plug (COP) systems started becoming more popular.
Ps... TH-cam never sent me a reminder this video was posted. I just now happened to see it by chance after watching your last video.
This video brings me back to when my dad and I were figuring out the timing on his Vulcan 750. I was 18 at the time and never been on a motorcycle of that size.
Well, once we were done, my dad threw a helmet at me and said to take it for a spin. I was very inexperienced and I ended up sprawled out on the street about three houses down.
I wasn’t injured, but the chrome was all scratched up and the lights were smashed. That was the last time my dad ever let me on his bike!
This really gets my motor running!
I have worked on cycle engines for 45 years in my garage. That is a really cute engine.
With gas prices they way they are, this looks like an economical replacement for my current kick start panhead engine.
Pretty cool model. Great detail. Impressive.
Nice way to introduce me to a MODEL CITIZEN. I'm a V-TWIN fanatic but on a slightly larger scale. Problems arise no mater the size. Watch out where the hardware flys...
I’ve run Harley’s over 45 years I still own my first one that I bought new in 82 it’s my beloved Shovelhead in a FXWG! I also own which I bought new a 92 Softail , Evo Engine! I must say this little engine is the coolest I’ve seen And plus it’s sound is amazing! I think that what would really be the icing on the cake when you have sitting in some cool creative display is being it am old Panhead replica is maybe put a couple of drops of oil under in since most of they old pans were notorious leakers especially the early ones the ran what was called a 100% lost system , by design the oil that lubbed the primary and drop out on the rear main drive chain! Ya gotta love em!!!
I’ve seen these awesome little works of art before and dreamed I could justify having one , but my budget for tinkering with the real ones , realistically i could never do it , but thanks for putting together a great video about a really great little piece of working history!!! Very nicely done!!!!
you are a real genius, being able to take that small engine apar and putting it back together, and it work fine.
the oil tank on a Harley engine is separate and normally sits behind the rear cylinder and above the trans(also separate from the engine) that inlet on the back /rear of the crankcase is an oil inlet
There are 3 channels that I absolutely love and are the main channels I watch on TH-cam. Mustie1, South Main Auto and Pine Hollow Diagnostics. I found your channel last week and I can't stop. Outside of how methodical and OCD, he has that well spoken "radio voice" which puts his channel over the top in my list. I now have a fourth channel and it is number 1. Thanks for all the amazing content.
I am 65, retired and have been riding Harleys since I was 20. I've always wanted a Panhead but never got the opportunity to buy one when I was younger. I have been collecting miniature Harleys for the past 35 years. I would love to have one of these little Panhead motor replicas but can't afford one now with a fixed income and prices of everything what they are. Well, that's my comment. Please keep the great videos coming. I love your channel. Thanks
I've been eyeballing this little panhead for a few months. Best dang video of it yet. Loved the break to check the calf. I'll get one eventually but my full size harley is sucking out all my funds right now.
Well that's just to cool for school, being a machinist for decades I know what has been put into it. Nice work also I own a 56 pan 42 years have split cases on a few😉 I can appreciate your work
True to Harley it even fires on the compression stroke and exhaust stroke!
My son is about to turn 8 years old. I'm getting him a model 4 cylinder engine kit we can build together. Maybe next year I will get him one of these! What a great way to learn how an engine works! Thanks for the video and chance for someone to win the motor!
AWESOME!! The main question I have is besides looking awesome as a great conversational piece
what can it do as a useful engine?
Even if it didn't run again it still would bring such a smile to your face every time you looked at it!.
Your calmness and skillset is topnotch with all those tiny screws .beautiful job
Damn! You are an exceptional mechanic and machinist. I'm pretty good myself, but I wouldn't want to compete with you. Your videoing and editing are also exceptional. I understand and love machines and have several in my collection and now need to get one of these - forget the lack of manufacture literature; this video really tells it all in a manner that one can understand and follow. I liked and subscribed. Thank You.
That is cool. Oil pump possibility and looks like a cam gear breather is possible. Impressed with the engine.
Wicked!!! I was looking for a tear down and rebuilt video for 04 fatboy 88CI...Thanks John I owe it all to you!!!
Incredible quality engine
I’m just curious is that a silicon piston ring or some sort of Teflon? Even silicone will eventually wear out
That one way bearing. Does that mean I can use a starter motor and not have to have a solenoid or disengage once it starts?
How many extra part did you have extra on Reassembly, Sign of a good mechanic is the box of spare parts left after putting it back together.