Can You Run An Engine BACKWARDS?!? Let's Try It
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- เผยแพร่เมื่อ 5 พ.ย. 2022
- In this funny yet informative video Taryl shows Slippers (and you at home) how he plans to make this 2-stroke Tecumseh engine run backwards! It can be done and Taryl's gonna show you how! Enjoy another fine informative video from your pals at Grass Rats Garage. And as Taryl always says at the end of every video... There's Your Dinner!!
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Hi do you maby have an engine rebuild 1978 5hp brigs and stratton push mower engine
Thanks guys! -Kate Goelzhauser, Managing Editor L> Magazine
Had people talk about old 2 stroke Detroit diesels running in reverse. Now, they could be rebuilt to run in reverse properly, but in the wrong circumstance, they could stall and run backwards. Quite the mess with an oil bath air cleaner. 4 stroke diesels can also be gotten to run backwards depending on the fuel system. Shutting off a deere 2 cylinder diesel, you could get them to pop off backwards for a bit when shutting down if you timed it just right turning the fuel back on. But, all these examples, you don't want to do this for more than a few seconds since the oil pump would not be providing lube.
My favorite reverse engines are the ford flatheads that people reverse.
Detroit in marine applications.
Been there and done that with a 6-71 in a mixer.
Yep if you stall an old Detroit on a hill and you pop the clutch you can get it to run backwards and roll coal out of the air cleaners lol
Talk about a runaway waiting to happen. Stand back everyone.
The legendary German Messerschmitt "Kabinenroller" also used a reversable two stroke engine. It's very cool if you take someone for a ride who don't know that. Nobody believes it, until you show it off. You have to stop, shut the engine off, start it in reverse (it has a dynastarter) and then you can go in reverse. In all four gears, that is... Theoretically you can go a suicidal 65 mph in reverse with those things.
Un verchet nich ussen Lanz Bulldoch, munter bleiben!
@@frankr.1594 Jo. You can reverse a two stroke semidiesel while it's running, if you are experienced and have a skillful hand on the injection pump. It can also run at zero RPM like a pendulum clock.
@@albinklein7680 I was wondering about that. Do they have two magnetos?
Yes you're right. A Video shows that here on TH-cam. I wouldn't do that to a tractor.
@@dagrote1 it simply has two sets of points. One is set at about 20 degrees before TDC and one is set at 20 degrees after TDC.
A really fun video! I mean, 1 out of 10,000 viewers might need to learn this, but everybody wants to learn this.
Now that was fun!
Good to know if you ever cut your grass too short,,, just run your mower backward and add some on . Thanks Tarryl.
Up It fire, Up it fire, Up it fire!
I love the little skits you guys do really cracks me up sometimes keep up the great work
"Little" ? Come on, they are not little at all. Taryl is a comedic Genuis, with slippers and everyone else, funny guys too......
I ment it in a good way the main meat and potatoes is the equipment and the knowledge for me the skits are the icing on the cake I think anyway I enjoy every part of the videos everyone on the channel is great puts a smile on my face every time and I always leave with more knowledge and joy then I came with.....and I agree 100 percent he is brilliant
My Yamaha g1 golf cart has a 2 stroke that runs in reverse to run in reverse. I myself never knew anything about these fascinating little motors until I bought this. The only engines I knew ran backwards was older diesels that could by accident and not very good at keeping oil in it. Love ya Taryl.
I have a 2 stroke from a Harley Davidson's golf cart. Really cool engine.
All 2 stroke golf carts do that
Snowmobiles have been doing this for a few yrs now to get reverse. It’s pretty cool to watch them change direction when running.
All Honda car engine before the K, J and L series (think D, B, H, C, F, G series engines) run counter clockwise.
I remember and old snowmobile my great uncle had that had two starter ropes-one in each direction. If you flipped a switch and pulled the reverse rope, the engine would run in reverse and you could back the machine up. Turn it off, flip the switch and start it in forward, and off you go. Love the vids , Taryl, I learn something from each one!
I wish they still utilized a lot of the old school like you're referring to. I didn't know they used that with snowmobiles but it's so simple and makes complete sense and I bet it was far more reliable.
I cant believe that i am watching and enjoying this stuff!! I owned and operated a small engine repair service in New Hampshire for about fifteen years, great job...,, have seen hundreds of cases where people expect miracles with their dogged out nasty old equipment.
I recently retired... Kinda miss it,, but enjoy watching you deal with tear down and rehab some of this equipment.. Like your shop.,,.Looks well worked in !!
Man .cool .. can you make time go backwards too.. 🤣
Fun as always! When I was a kid, it was common for my glow plug, methanol 2 cycle model plane engines to start backwards. On occasion, they would "burp" and start running forward afterwards. I have also seen glow plug 4 stroke model plane engines run backwards when fuel was puddled in the muffkin. The 6:1 ratio that methanol burns at makes fuel mixture less critical and the air going over the fuel in the muffkin would pick up enough vapor to keep the engine running backwards.
My brother and I both had KDX200 2 stroke enduro bikes back in the day. I wanted more low end torque, so I bought a flywheel weight for mine. It was a big improvement, but I wanted even more grunt, so I advanced the timing 5 degrees and it really pulled hard down low. My brother didn't put a weight on his flywheel but did advance his timing the same 5 degrees. My motor outpulled his, since it had a heavier flywheel, but being young and dumb, he said "if 5 degrees is good, then 10 degrees must be GREAT" and made the adjustment, against my advice. His first kick kicked back HARD and almost sent him over the bars. Did that stop him? NOPE! Kick HARDER, he says to himself, and that's what he did. It almost broke his leg, it kicked back so hard, but it cranked. It sounded really weird, though, like an outboard motor exhaust running under water. He revved her up, getting ready to show me who's the boss, dumped the clutch, and took off hauling a$$ BACKWARDS. He crashed withing 10 feet, of course!! Funniest thing I ever saw!!
up it fire! up it fire!
Awesome thanks for sharing
Thanks....always entertaining and informative.
Howdy Taryl. Great job making that engine run backwards. I never knew you could reverse the coil laminations - you are a genius!!! Thaks for the great vids.
My Honda mower is running on a Breaks and Scrapem coil. "Re-arcked " laminations to clear the flywheel. If it's broke, you can't break it. I got lucky and saved $$$ for a Honda coil.
@@calvinmientke3539 👍👍
I just finished rebuilding the engine out of my ‘61 MGB - 4 cylinder , 1800 cc - and was beginning to tune it. It fired up but it was running rough , I was setting the timing “ by ear” didn’t own a timing light. As I was backing the timing back to TDC I went too far, the engine sort of backfired and to my amazement it started to run backwards ! I freaked out, fortunately the air filter housings weren’t on yet; I cupped my palms over the throat of the two carbs and starved the engine. After I calmed down I eyeballed the distributor to well past TDC and it started right up, no apparent ill effects!
Taryl time 👍🏼
Hey Taryl, Do you remember the older Briggs & Stratton engines had two sets of timing marks for either running gasoline or for running distillate fuel.
I remember that a 1974 16hp Briggs&Stratton engine that I have have this timing configuration, Those cast iron engines were tough as nails.
Damnit Iron Man! I was about to go to bed and now I have to look up distillate fuel and what it is 😂
Love your videos
thats incredible I've been wondering about that for a while, thanks
Taryl’s the magic man! 😂👍🔧🧰
Anybody remember popular science magazine and a guy named Smokey? He was a stock car racer did a auto question and answer for the magazine.
He once ran his stock car engine backwards before being caught.
This was way back in 70s I think.
If I'm not mistaken, Merc inboards have some car engines that run backwards.
Smokey Yunnick,I think his name was.He was a well known engine master.
Thanks, could not remember how to spell his last name.
Very good educational and entertaining video, cheers !
worked on those old Yamaha golf carts 30 years ago you brought back memories thank you
Smokey Yunick made a small block chevy run backwards, but that involved custom crank, cam, etc. My model airplane engines would start backwards by accident sometimes and ran just fine.
I could not remember the details of Smokey.
He was a genius when it came to cars.
Cam change is all needed. Marine engines use this all the time.
Pretty cool stuff…👍👍👍
Taryl, your channel is grassalicious. Thanks buddy.
Taryl is awesome !
Vídeo muito bacana. Muito informativo!
Had an Isuzu diesel 4 cyl runaway in reverse, it was kinda funny and kinda scary at the same time. This was in tech school, and we had to hold that stupid thing in place until cracking the fuel lines eventually stopped it. The smoke show was insane.
Interesting vid Taryl.
I know on that bush plan with a rotex 912 engine one of the tricks (if you get it flooded while starting it) is to rotate the prop backwards a few times that trick will ejects the gas back into the carburetor side and draw fresh air out of the exhaust port .. voila unflooded !
Thank you for making this video! Ive wondered if this was possible. I jus subd bcuz of this video! 🤘😁
Haven't seen your videos in a while. TH-cam brought us back together again.
Another good one! I like the new music too!
This video explains the neighbor my grandma had when I was a kid in Rock Island wa. Until now I thought he was kinda off BUT he was really on!😎😎 Thanks for sharing!
May I say, your hair looks fabulous!
I worked for South East Harley Davidson Cleveland Ohio in the early to mid 70s.We had a couple thousand gas golf cars and 1500 electric ones on rental.The 2 cycle Harley engine in the gas cars had a reversing switch to control the starter/ generator for forward and reverse start up and running. That engine was also the same basic one used in the Harley Topper motor scoters. South East Harley is Still owned and operated by the Myers family since they opened in 1949 and still going strong. Remember the old GM 6 71s running backwards when the driver would jerk the clutch and get it running backwards with smoke and oil shooting out of the oil bath air cleaner. lol
farm show is another good magazine for ideas and information on tractor related projects and paraphernalia.
I am more impressed with your new hair style it looks much better
Nice Video!
Reminds me of that old lanz bulldog 2 stroke single 10.3L tractor .. it maxes out at 631 RPMs.. and idles at 0 RPMs ! ... reverse is achieved by putting it at idle and jerking the clutch which kicks the governor on and makes the motor actually rev up just enough to start turning RPMs sometimes you have to give her a few clutch pops as it bounces in between backwards and forward rotation depending on which direction you want her to go ! .... I had an old Honda Odyssey FL250 it had a tendency to want to start in reverse all the time ...and it ran just fine only backwards .. I let someone else drive it and they ran it off into a long steep ravine out in the middle of nowhere with no way to turn it around and with the machine not actually equipped with reverse I give the motor a few cranks and shut it off until it went into reverse then we backed that sucker out !
Wow, "T". A motor that runs in reverse! Next, your going to tell me, a motor can run on steam. On a side note, I purchased a Blade Man coffee mug. If you like a large cup, 14 ounces, with a wide bottom, this is the cup for You. I use it daily and love it. Git you one! Keep up the good work Taryl!
Biggest thanks from cruzermans inventions 😁👍🎉 allsome work guys cool
Good one , although I would wonder about doing that on some equipment. Thanks for the look!
Fairmont railway engines can run in either direction. That's how the railway car could go forward and backwards with out a transmission.
So awsome
Modern 2 stroke snowmobile engines run in reverse so they can have reverse without adding weight by having a reverse chain case. They run forward and when reverse button is engaged the motor slows down then stops for split second and reverses itself!!
Ski Doo has been doing this for years, that's how they made their snow machines run in reverse . Pretty smart of them to do this and do it well.
Now you need to put the engine back into the snow thrower and throw all the snow back onto the driveway. Ingenious!
I had a REO engine 4 stroke that ran counterclockwise. Was a washing machine engine. 11/2 hp was neat.
P.S. for most of my adult life I have given the cool-aid-esque "OH YEAH" when making the mechanical break through, I caught myself self giving the Taryldactyl "WHOOOOO" yesterday. Lol, y'all are awesome.
Just like Bigsquatch, his hair is beautiful! 2 stroke Detroit Diesels would run backwards. Slip Dog has finally found his calling, gas tank holder.
Hi Teryl--I enjoyer meeting you at Pontiac on laboer day. I have a channel also. Loved your video today.
Are you aware that the FAIRMONT 2-cycle engines used on railroad handcars were reversed in order to back up??
Hello fascinating information as always.
Great to see you here mrpete!
It suck in smoke and put gas back in the tank? 😆Great fun guys👍
The old Mercedes Benz passenger car diesel engines with a throttle in the intake and vacuum controlled injection pumps had the habit of licking off backwards when they were cold and the battery was very weak. If you let go of the starter knob in just the right (or, of course, wrong...) moment they puff away in reverse. The problem is, they destroy the injection pump while doing that. The exhaust in the intake rips the delicate leather membrane apart.
Love it.👍🔧🇬🇧
I always laugh when he says Follow Me and jogs in place. That's hilarious 😂😂😂
Great video I have a 2038R John Deere tractor it’s a two series and I love it a 38 hp with the turbo diesel ain’t nothing I can’t do without tractor that’s for sure it’s perfect for my property but I like how you started the engine and reverse that’s pretty cool
You don't have to swap the carb and exhaust to run a 4-stroke backwards. The camshaft determines the direction of rotation so you just need a camshaft that is ground for reverse rotation.
And a backwards starter motor ;)
?????camshaft on a 2stroke???
Taryl many snowmobiles do that still. You push a button on the handle bar and it shuts off then fires up in reverse by itself. It makes it so you don't need a reverse gear in the chain case which is problematic sometimes and also heavier.
I have a Ski-Doo 440 mxz that does this. The funny thing is, I didn't know it did for the longest time until I got curious and pressed the button.
I did not know you can run it back well I have learned something already watching your I want to watch your programs for now on I like how you do I sure love to come down to your shop I would love to come down to your shop and work with you
it can be done , but they must use a different flywheel ( fins) to keep the engine cool when running . great vid
FIRE IT UP ! FIRE IT UP! FIRE IT UP!
Nice hack to demonstrate the principle. Some skidoosh rotax have reverse, its a cool feature to have to electronically reverse the engine like that.
cool beans i love the Taryl drip
Now can you make the clock go backwards?
I really liked the reverse backwards gag early in!
Back in the early 70s my youngest brother had a tiny little Yamaha trail bike, I think it was 80cc? It was kick start only and every now and then he'd kick it and it would be running backwards! I still have hilarious images of him popping the clutch and it starting to go backwards. After a while he just would run it down a hill and pop the clutch to start it, ensuring it would go the right way!!
Back in the last century we had Motorcycle Scrambles, and some of the two stroke engines would run in reverse if bumped back against compression. I think DOTs and some Villiers engines did it. It gave the crowd something to laugh at when the rider selected a gear and let the clutch out. Maybe it was caused by the points ignitions used then.
Bultaco Matador would .
Sending my wife the reminder for Taryl apparel Christmas gifts now.
Thank you
Wtf was that intro 😂😂😂 immediately subscribed
Anyone else notice how Taryl distanced himself from the engine with the long pull cord while leaving Slippers standing over the thing holding the primer and the bottle of liquid death?😳
Yes, very dangerous for cig smokers or cigars.
Excuse me ma'am, slippy will be just fine. Sheesh 😂. Kid's love to cry these days lol
The process shown on here to make the small gas motor reversable was very interesting!My first thought was like with some electric motors-spin the shaft manually then apply power.
Someone that used to ride the trails with my friends and I had a small 2 stroke bike that would backfire when kickstarted. When it backfired, the engine would spin backwards and run that way. He had 6 reverse gears lol. Was funny, watching him ride it that way. Whoop!
Maybe you could repaint that workbench white so you can find little parts and screws easier. And you could see the dirt and paint scrapes easier too as you wear it out!
Reverse on my sled (skidoo 800 etec) works by running the engine backwards! It’s really neat it cuts the spark and right before the engine dies it puts a ton of spark advance in and fires it backwards.
There are actually 2 pick up coils under the flywheel on both sides of TDC.
Taryl stuff good....
Too bad we can't reverse time back to 2020......if you know what I mean! Great video Taryl and Slippers!
Antenna Man Brought Me Here... Cool video👍... (and yes, you need to bring old man Slippers to the vet a.s.a.p.) Heeeee Yaaaahhhh
Hey Taryl, Ski-Doo made a snowmobiles that would backup using a push button on the dash. Push the button and the engine would reverse and run backwards. Push again and drive forward.
My Ski Doo snowmobile does the same thing. Runs the engine backwards, pretty cool and adds no extra weight or gearing to accomplish.
Man you gotta do a little duck boat with two little duals like a pair of Detroits in a tug boat. Would be awesome.
question, when you reverse the direction would it not be opening the valves backwards? as in exhaust then intake, aka intake-exhaust-igniton-compression>intake-exhaust-ignition-compression???
I believe Polaris snowmobiles still do this today. To go in reverse hold button on dash until engine slows to a stop and runs backwards. Then to go forward, same process. From the Polaris web site: How does Polaris electronic reverse work?
How Does Electronic Reverse Work? The electronic reverse is much easier than the mechanical reverse. With just a press of the button, the engine slows down to a near stop, then slowly starts up again to begins rotating backward to reverse. There is also another electronic reverse version called the PERC.
Taryll you can read my mind , few days ago , i asked myself , why are engines always spinning clock warts, and is there a possibillity to let it spin counter clock warts.....and voila.. there you have it , you came with the solution!!! thanks for showing us, and there's your diner!!!
I do know on the old B-52 G model bombers with the old J-57 engines would at times rotate backwards and start. Granted it would grenade the engine but it would run for a few seconds.
Every spring clean up I would collect every "snow flapper" snowblower that vibrated itself to death. After collecting 5, I said, "no more" and then I found a 4 stroke. I put a 2 stroke on an old 10 inch table saw and I use it for cutting up branches. The 4 stroke is mounted and drives a car alternator to charge batteries. Now if I could find 12 volt starters for them....there's my dinner!
I built a portable charger years ago and it was really handy! Made the mistake of lending it out and the rest is history!😠
@@gregorypiercesr.2769 It ran off
interestin'.... 15 years ago.. I has my hands on Lockwood-Ash marine engine.. it'll runs in both direction, also stop and start with turn of lever.. pretty cool engine designed from 1920.. very simple built, quite common in Louisianan backwater.. Known as Putt Putt engines
I once toured a WWII era tug boat that had a diesel engine with direct drive to the prop shaft. To put it in reverse, you had to shut the engine down and shift the cam shaft, then start the engine in reverse. I had to scratch my head at whoever thought that would work better than just putting a gearbox between the engine and prop shaft. Kinda makes you rethink your definition of "military technology."
use to 2cyc were known to run backwards really by accident but they worked one that with the ignition especially boat motors back in the day was not an everyday thing but it would happen
30 years ago we had a 4str. old car V8 run backward...By accident...Engine was running terribly bad (Loaded the exhaust sys. full
of unburned fuel vapor etc.) & over heated. Shut it off...It dieseled a couple seconds, then stopped and started running backward.
Volcanoed smoke and flame out the carb. It ran for several seconds as we flailed around. It stopped. Fun, Fun On the Autoban.
I remember I had an old Briggs opposed twin when you would stop turning it over but leave the ignition on it would start to start up backwards
Spent my youth as a aspiring Motorcycle/ATV/Marine Technician with strong ties to U.S Suzuki and Yamaha along with Mercury Marine,but anywhere one day I was repairing a old Yamaha 3 wheeler and the customer had replaced the recoil rope but wound it backwards resulting in a 3 wheeler that went backwards after u started it up and put the machine in 1st gear.i think that mighta been my first time ever actually seeing a 2 stroke engine that was running backwards or in the clockwise direction,crazy.....
About a century ago there was a railcar manufacturer of McKeen . In order to go in reverse they had you stop the engine and you would do some kind of adjustment to the cams. They didn't use an electric starter but used stored air pressure to start. Problem was if it didn't start quickly you would run out of air then came out the manual crank.
Hey Taryl, so now that the flywheel is spinning backwards, from the direction of the cooling fins on the flywheel, it won't push the air up through the blower shroud, and push the Hot air out and away through the cooling fins on the head, So won't that eventually cause the engine to overheat and blow up🤔?