I once had a Frankenstein tractor someone had built from a old school bus drivetrain. They used a rotor tiler transmission with its five horse and mounted the whole thing in front the bus transmission sideways. Then they simply drilled a hole through bus input shaft and linked it to the rotor tiler drive (right where the hub for the tines went) with a pipe . It couldn't hardly be stopped, but forth gear was a slow walk! Lol
He sure did that the hard way. All you need is a v belt and two pulleys one for the output shaft of the engine the other for the input shaft of the transmission by varying the size of the pulleys you can very the ratio between the engine and a transmission. Then all you need is an idler pulley so you can loosen the belt to shift gears very easy very straightforward.
So you would mount a pulley onto the transmission shaft without any bearing support? Good luck. It's a little more complicated to build a slip / tension clutch than to just use a centrifugal clutch. My current project is getting one, but for now it has a centrifugal clutch.
Love the videos watching these made me finally build one myself and it’s amazing what the these motors will do with the right sprockets can’t wait to see the monster truck done!
Ingenious yet simple. You've caught my attention! Lots of videos out there showing small engine swaps, but they seem awfully complex. The centrifugal clutch and sprockets is mint, imo. You could put a 50cc chainsaw into something and make it move...
Can't wait to see the rest of your crazy builds. Hahaha you mentioned monster truck Kurt and my daughter said where does he live I'll go help him. She loves the building monster trucks
Great idea to use the clutch disk hub. I would use a flex coupler to isolate the crank shaft from transmission movement or misalignment. We use the flex couplers to connect small engines to hydraulic pumps for log splitters.
I used a Lovejoy coupler on my golf cart conversion for just the reason you mentioned, however with this setup it's really not necessary because it is pretty easy to get the shaft true in line with the use of body shims under the bearings if needed. Thanks for watching.
Nice idea with the clutch eye. Have to remember that. Now my mini Daihatsu Lo-Jet build is getting 4 on the floor! Now I just need to use a friction disc snowmachine setup so I can use a vertical shaft engine still. Or maybe I'll grab a GX 340... Who knows I live in Detroit so Tecumseh-a-plenty on the ole marketplace. Great video! Off top the junkyard for Jeep parts!
Simple engineering is the best kind. I can't wait for you to put a go-cart engine in a D8 bulldozer... it might be a tall order, but l'm sure can come up with something. 🙂
I tried to buy an old dozer once, I think it was an old international?? They wouldn't come off the price and I wasn't willing to give what they wanted.
I think the bearings would last a good long time even at motor speed but since they are turning so much slower than the motor they probably last a very long time.
Thanks, get you a small car like and mg b or a mg midget, they are so cool. My MGB with the 18 HP is awesome and I bought a midget for $400 last weekend to do another one.
@@ChrisfromKeyfarm funny thing is I actually have an MGB but it was my brothers car so I won’t be doing anything like this to it. But I would like to do this with a VW Beetle.
thanks for making this video chris, i spoke to you a couple months back on the homeade farm equipment group on facebook! this has inspired me once again to start working on my homeade mini tractor and start my own youtube channel! Caleb Nelson
At some point I'll probably build a tension clutch that works off the pedal. There are also manual clutches out there that work on an electric switch I think
Hello the sir great work I'm new to your channel and I love what your doing I have a small fiberglass car I've been thinking about putting a single cylinder diesel engine of the Chineseium variety
Curious to see how long that little centrifugal clutch will last? I think a variable pulley system off a gulf car would be stronger? Hope it works for all of your time and efforts!
@Keyfarm - I am swapping a go-kart engine into a 1989 Isuzu Pickup that came with a 2.3 liter gas engine and a 5-speed cable-clutch-operated transmission. Question: are there any cable operated clutch kits available for small engines instead of using a centrifugal clutch? I am concerned the centrifugal clutches in your designs may wear out quickly?
I've used the 5 speed in a 1991 B2200 Mazda truck, a 4 speed in a 1975 MGB , and a Borg Warner T19 in a 1985 F-350. As well as a 1941 Farmall transmission.
You must have used a go cart clutch in place of the actual clutch that was with the original manual transmission, hiw much do they cost and are they rugged enough for what you're doing? Enjoying the content brother 👍
A go-kart clutch for a Predator 212 is only about 30 bucks and for the bigger engines they're about 55 and since I run a gear ratio that doesn't put a lot of stress on the clutch they really last a long time The one on the tractor lasted 3 years and I went to a different engine it never did wear out.
Absolutely have, stay tuned, it'll happen one day. At one point I was going to put three Predator 212s on my tractor but decided to go a different route
It's all about using the centrifugal clutch to disengage the engine from the transmission and timing you can shift any manual without the clutch if you know how to do it I'm making a video this week that shows how.
HUM, thanks for THOSE details, you may of given the others somewhere else? Just a respectful suggestion, give a LIST per part, like the BIG sprocket identification, teeth #, Chain size, if it has a bore on both sides, or just the actual Part Number & source of the exact one, some of us are mechanical enough to build from a parts list but not so good in rounding up the individual parts, Thanks again !
Most of this is a general concept build , many of the parts used would vary from project to project. I am happy to help anyone find particular parts as they need them.
Nice job but on my project im going to use a dodge 5 speed manual with the bell housing and the flywheel and clutch in my buggie making everything i need to adapt to a 20 hp Kohler engine thanks
That's very interesting Make sure you get all that heavy stuff spinning true or it's going to have a terrible wobble, also that 20 HP isn't going to like turning all that rotating mass/ at first.
The biggest problem with an automatic transmission is the amount of horsepower needed to get it moving due to the torque converter . A Chevy Power glide eats up 18 hp. A TH 350 takes 36 hp. And a TH 400 is hungrier yet at 48 hp. That being said , in the old days ( late 60s ) drag racers would remove the converter and swap it out for a manual clutch assembly . Remove the hub from the converter and weld it to your shaft just like you did with your clutch hub . The converter hub turns the front pump in the trans . BTW , the shifts will be brutal as the torque converter absorbs all of the shock from the shift . If you've ever driven a car with a shift kit installed, you've got an idea of what to expect .
@@ChrisfromKeyfarm well, they are an adapted taste, an ole sled might go cheap? Or fer about the same cost as just the gokart flavored belt converter.. but just a thought,
@@ChrisfromKeyfarm I have 3 daughters, the oldest is 15 and I required her to learn to drive with manual first. She probably won't drive one anymore but at least she will know.
You are going to miss horsepower when in mud, its either put in it a stronger motor or good reductor, reduction is most important when going through mud, becouse if it is going slow, the wheels will not spin too much in mud and when releasing the clutch under the preasure it also won't burn the clutvh
Why have a centrifugal clutch on the engine if you have a clutch in the transmission. Its just gonna burn from all the force put in before the reduction.
The original clutch is attached to the flywheel, which is attached to the back of the crankshaft, so the clutch doesn't attach to the transmission. As long as you gear it properly, the centrifugal clutch lasts a long time.
If you had absolutely nothing else you could use except this stuff...... ok. I think it would be worth putting a croch-rocket engine on there just to see the look on people's faces when they hear that sound coming out of that thing.
That still does not explain how you shift!!!! Do you just grind it from 1st gear to 2nd gear to 3rd, etc? What about coming to a stop, do you just yank it out of gear into neutral? What about taking off, same thing same question. I see how it works and I get that but I don't get how your shifting without a clutch.
Hahaha, actually tits on a bull are very important, you would never want to breed a bull that had any extra false tits because he could pass those bad genetics down to any female offspring, then their young could potentially try to suckle a false tit. So , I hope you learned something today as I did , you don't know Jack about bulls or Keyfarm projects. Thanks for watching.
This is the video of how to shift. Remember to like 👍.
th-cam.com/video/Y2WUUP5hOt4/w-d-xo.html
I’m watching it right now lol 😆
I once had a Frankenstein tractor someone had built from a old school bus drivetrain. They used a rotor tiler transmission with its five horse and mounted the whole thing in front the bus transmission sideways. Then they simply drilled a hole through bus input shaft and linked it to the rotor tiler drive (right where the hub for the tines went) with a pipe . It couldn't hardly be stopped, but forth gear was a slow walk! Lol
Cool
Thanks Chris, your projects are awesome and thanks for showing us how to connect the motor to the trans.
👍 maybe it will help someone in their project
He sure did that the hard way. All you need is a v belt and two pulleys one for the output shaft of the engine the other for the input shaft of the transmission by varying the size of the pulleys you can very the ratio between the engine and a transmission. Then all you need is an idler pulley so you can loosen the belt to shift gears very easy very straightforward.
So you would mount a pulley onto the transmission shaft without any bearing support? Good luck. It's a little more complicated to build a slip / tension clutch than to just use a centrifugal clutch. My current project is getting one, but for now it has a centrifugal clutch.
Love the videos watching these made me finally build one myself and it’s amazing what the these motors will do with the right sprockets can’t wait to see the monster truck done!
Awesome , glad I could help in any way
Ingenious yet simple. You've caught my attention! Lots of videos out there showing small engine swaps, but they seem awfully complex. The centrifugal clutch and sprockets is mint, imo.
You could put a 50cc chainsaw into something and make it move...
I appreciate the comment, thanks for watching.
Looking good Chris! Can't wait to see the next video!
Thanks 👍
Awesome! Bring life back to some fun stuff
👍 absolutely
Can't wait to see the rest of your crazy builds. Hahaha you mentioned monster truck Kurt and my daughter said where does he live I'll go help him. She loves the building monster trucks
It's going to be pretty cool
That looks like a great start of a fun project. Good video
Thanks, I appreciate you watching!
Great job Chris! You're an inspiration to us backyard engineers.
Thanks
Great idea to use the clutch disk hub. I would use a flex coupler to isolate the crank shaft from transmission movement or misalignment. We use the flex couplers to connect small engines to hydraulic pumps for log splitters.
I used a Lovejoy coupler on my golf cart conversion for just the reason you mentioned, however with this setup it's really not necessary because it is pretty easy to get the shaft true in line with the use of body shims under the bearings if needed. Thanks for watching.
Nice idea with the clutch eye. Have to remember that. Now my mini Daihatsu Lo-Jet build is getting 4 on the floor! Now I just need to use a friction disc snowmachine setup so I can use a vertical shaft engine still. Or maybe I'll grab a GX 340... Who knows I live in Detroit so Tecumseh-a-plenty on the ole marketplace.
Great video! Off top the junkyard for Jeep parts!
Glad you enjoyed the video thank you for watching.
Love watching all videos I find the videos inspiring ❤
Cool thanks
Good job Chris. You've come a long way since the Farmall tractor.
Thanks 👍
Excellent idea. I'll keep it in mind for future projects
👍 thanks
been looking for something like this for the past year
Awesome , thanks for watching!
Good job I look forward to more on this thank you
Thanks, I appreciate it
I like the way you get things done bother and keep up the good work and making the videos. Hell yeah I'll follow you
Thanks
Awesome work, I may try this myself..
Go for it!
Thank you for that I'm always thinking about those kind of things
Cool, thanks 👍
Cool,, good to know,,, appreciate this
Awesome thanks for watching
Back in the day I cut off the end of a crankshaft had it bored and key way cut in. Used the complete clutch assembly. Over kill but unbreakable.
Cool
Simple engineering is the best kind. I can't wait for you to put a go-cart engine in a D8 bulldozer... it might be a tall order, but l'm sure can come up with something. 🙂
I tried to buy an old dozer once, I think it was an old international?? They wouldn't come off the price and I wasn't willing to give what they wanted.
Great idea. wonder how long those bearings will last. Cant wait for your next installment video, love watching all your stuff. Thanks.
I think the bearings would last a good long time even at motor speed but since they are turning so much slower than the motor they probably last a very long time.
@@ChrisfromKeyfarm sounds good to me brother, awesome job
👍
I really want to try this out one day! It'd be epic! Very cool stuff you do with cars and go kart engines.
Thanks, get you a small car like and mg b or a mg midget, they are so cool. My MGB with the 18 HP is awesome and I bought a midget for $400 last weekend to do another one.
@@ChrisfromKeyfarm funny thing is I actually have an MGB but it was my brothers car so I won’t be doing anything like this to it. But I would like to do this with a VW Beetle.
I would like the front engine MGB or midget but a Volkswagen is also a great choice and there is a guy on TH-cam that has done it to a Volkswagen.
I think his channel name is aspieworth shop
MG's and midgets in this area can be had for between 4 and $700
So many project ideas.
Me too 👍
good video, Lewis
Thanks!
thanks for making this video chris, i spoke to you a couple months back on the homeade farm equipment group on facebook! this has inspired me once again to start working on my homeade mini tractor and start my own youtube channel! Caleb Nelson
Awesome, glad you're back at it.
very interesting concept.
Thanks
Looks like that'll work.
But to bad someone don't make a "manual" type/style clutch that would fit right in the place of that centrifugal clutch.
At some point I'll probably build a tension clutch that works off the pedal. There are also manual clutches out there that work on an electric switch I think
Very cool, thank you.
Thanks for watching
That is cool think you for sharing this
Thanks for watching and commenting!
Sweet drive setup. A torque converter on it may make it even better
I have thought about it but the torque converters I've run haven't done very well. Perhaps I was just running cheap torque converters
Never thought about that solution before
Cool, thanks for watching
Love this
Thanks 👍
Awesome 👍😎
Thanks 👍
Sounds like im getting a tutorial from Georgie on Young Sheldon.
Kidding aside, great video. Thank you.
LOL 👍 I think Georgie ends up being wildly successful doesn't he? Thanks for watching.
@@ChrisfromKeyfarm He does. Was just your voice for me, not his brain capacity.
@raulduke7142 LOL, bummer
You are a Madman
Hahaha, thanks for watching
Very cool
Thanks
Hello the sir great work I'm new to your channel and I love what your doing I have a small fiberglass car I've been thinking about putting a single cylinder diesel engine of the Chineseium variety
That sounds like a great project.👍
Thanks Chris
You're welcome, thanks for watching
Ingenious
Thanks
If the small tensioning, sprocket is under Spring pressure that will take any missile alignment out of the rotation.
Right now it's hard mounted but it may be a spring tensioner eventually.
@5:14 not only did it help, it added to the list. Thanks, Key Farm, the wife will love this Idea...not....lol
Hahaha 👍
Do you drill a pilot bearing into your shaft? Ses like it would reduce side loading on the trans input
There is no side loading on the input shaft of the transmission because the new added shaft is supported by two bearings
Curious to see how long that little centrifugal clutch will last?
I think a variable pulley system off a gulf car would be stronger?
Hope it works for all of your time and efforts!
I've had some of them in place for years , I gear stuff low enough that it isn't hard on the clutch.
yep totally doing it
👍
@Keyfarm - I am swapping a go-kart engine into a 1989 Isuzu Pickup that came with a 2.3 liter gas engine and a 5-speed cable-clutch-operated transmission. Question: are there any cable operated clutch kits available for small engines instead of using a centrifugal clutch? I am concerned the centrifugal clutches in your designs may wear out quickly?
There may be a clutch like that I have never seen nor used one most people build a tension clutch with a belt
Good video! By chance what transmission did you use?
I've used the 5 speed in a 1991 B2200 Mazda truck, a 4 speed in a 1975 MGB , and a Borg Warner T19 in a 1985 F-350. As well as a 1941 Farmall transmission.
You must have used a go cart clutch in place of the actual clutch that was with the original manual transmission, hiw much do they cost and are they rugged enough for what you're doing? Enjoying the content brother 👍
A go-kart clutch for a Predator 212 is only about 30 bucks and for the bigger engines they're about 55 and since I run a gear ratio that doesn't put a lot of stress on the clutch they really last a long time The one on the tractor lasted 3 years and I went to a different engine it never did wear out.
Just found your channel. Nice.
Have you thought about a Dual Engine Setup????
Like you see in them pulling tractors. Just a thought.
Absolutely have, stay tuned, it'll happen one day. At one point I was going to put three Predator 212s on my tractor but decided to go a different route
cool
Thanks
cool....
Thanks
👍👍
😀👍
Looks good brother but how will that centrifugal clutch do in that set up?
The centrifugal clutch works great
th-cam.com/video/Y2WUUP5hOt4/w-d-xo.html
good
Thanks
Thank you ( Comment :)
👍
I see how you did that, but then how do you run the clutch set up? How do you make it a clutch deal? So you can change the gears, how's that work?
I'm doing a video this weekend about how to shift gears
th-cam.com/video/Y2WUUP5hOt4/w-d-xo.html
So if you have a standard how do you use a clutch to shift it into different gears
It's all about using the centrifugal clutch to disengage the engine from the transmission and timing you can shift any manual without the clutch if you know how to do it I'm making a video this week that shows how.
th-cam.com/video/Y2WUUP5hOt4/w-d-xo.html
HUM, thanks for THOSE details, you may of given the others somewhere else? Just a respectful suggestion, give a LIST per part, like the BIG sprocket identification, teeth #, Chain size, if it has a bore on both sides, or just the actual Part Number & source of the exact one, some of us are mechanical enough to build from a parts list but not so good in rounding up the individual parts, Thanks again !
Most of this is a general concept build , many of the parts used would vary from project to project. I am happy to help anyone find particular parts as they need them.
I'm assuming that doing this with an automatic transmission is impossible? @@ChrisfromKeyfarm
I don't know , it might not shift.
It would be cool for you to build a 212 for like 9,000 rpm and put it in a smaller car or truck so it really goes.
🤔
Nice job but on my project im going to use a dodge 5 speed manual with the bell housing and the flywheel and clutch in my buggie making everything i need to adapt to a 20 hp Kohler engine thanks
That's very interesting Make sure you get all that heavy stuff spinning true or it's going to have a terrible wobble, also that 20 HP isn't going to like turning all that rotating mass/ at first.
How are you shifting the transmission without the clutch?
Floating the gears. I'm making a video in 2 days that will show you how.
th-cam.com/video/Y2WUUP5hOt4/w-d-xo.html
I built a Suzuki samurai with a motorcycle shaft drive motor
Cool
Will the engine power an automatic trans?
Not sure but there are definitely some obstacles in the way.
The biggest problem with an automatic transmission is the amount of horsepower needed to get it moving due to the torque converter . A Chevy Power glide eats up 18 hp. A TH 350 takes 36 hp. And a TH 400 is hungrier yet at 48 hp. That being said , in the old days ( late 60s ) drag racers would remove the converter and swap it out for a manual clutch assembly . Remove the hub from the converter and weld it to your shaft just like you did with your clutch hub . The converter hub turns the front pump in the trans . BTW , the shifts will be brutal as the torque converter absorbs all of the shock from the shift . If you've ever driven a car with a shift kit installed, you've got an idea of what to expect .
Yes you could easily replace the torque converter with a centrifugal clutch just like this manual setup
Because you can doesn't always mean you should.
In this case you totally should!
Sow how do you shift with no clutch ?? I don't think it works like a semi.
It works like a semi , if you're familiar with floating the gears in a big truck then that's exactly how I drive this.
th-cam.com/video/Y2WUUP5hOt4/w-d-xo.html
Do you speed shift it?
I don't know what you're calling speed shifting you can shift without a clutch if you do it with the right timing and finesse
th-cam.com/video/Y2WUUP5hOt4/w-d-xo.html
I kinda want to put a yanmar diesel in a farm truck now.
That would be awesome
I'm going to do the same but with a mitabitsy
Cool 👍
I thought you used the hole clutch. I must have missed that somewhere .
Nope, just a simple go-kart clutch
Skidoo style torque converter?? 🤔
I normally just use a go-kart style clutch.
@@ChrisfromKeyfarm that works pretty good too, but might wanna check out a belt CVT style one, you might be pleasently suprized with how well it works
I've used torque converters on projects, I don't really like them, and the really good ones cost a fortune
@@ChrisfromKeyfarm well, they are an adapted taste, an ole sled might go cheap? Or fer about the same cost as just the gokart flavored belt converter.. but just a thought,
👍
And that tiny centrifical clutch can handle that ??
Sure can
you just jam it in and out of gear?
Absolutely not! If that were so it wouldn't be a very cool project. I'm making a video this week that shows how to shift
@@ChrisfromKeyfarm centrifugal clutch?
Yes , it has a centrifugal clutch and you can float the gears.
th-cam.com/video/Y2WUUP5hOt4/w-d-xo.html
th-cam.com/video/Y2WUUP5hOt4/w-d-xo.html
shifting?
I made a video about shifting.
th-cam.com/video/Y2WUUP5hOt4/w-d-xo.html
NICE WORK
Thanks
Shifting gears is easy, just like doing it without the clutch and go slow.
I see you have diesel in your name so you know how to shift that way but 99% of the population doesn't.
@@ChrisfromKeyfarm 95% doesn't know how to drive a manual lol
Less and less everyday
@@ChrisfromKeyfarm I have 3 daughters, the oldest is 15 and I required her to learn to drive with manual first. She probably won't drive one anymore but at least she will know.
Cool, where I work a lot of guys are restricted to a manual in the big truck world and it causes a real hassle.
You are going to miss horsepower when in mud, its either put in it a stronger motor or good reductor, reduction is most important when going through mud, becouse if it is going slow, the wheels will not spin too much in mud and when releasing the clutch under the preasure it also won't burn the clutvh
Your absolutely right.
Suzuki had 25 and five reverse
Full use of both transmissions , I like it
Finish comment
👍
I'd just have the engine turn a flywheel off the original engine using pulleys and belts and build a frame to mount the transmission on.
Mounting the flywheel would be difficult.
Next time use the big clutch and pressure plate
That would be a lot more rotating weight!
Why have a centrifugal clutch on the engine if you have a clutch in the transmission. Its just gonna burn from all the force put in before the reduction.
The original clutch is attached to the flywheel, which is attached to the back of the crankshaft, so the clutch doesn't attach to the transmission. As long as you gear it properly, the centrifugal clutch lasts a long time.
Have you tried to hook up to an automatic transmission
Not yet , I keep asking my buddy to let me put a predator 212 in his 72 Chevelle, but all he does is give me a dirty look.
@@ChrisfromKeyfarm 🤣
🤣
Or, build a motor. I could find something else to fit in an mg. A naps z is plentiful.
👍
If you had absolutely nothing else you could use except this stuff...... ok. I think it would be worth putting a croch-rocket engine on there just to see the look on people's faces when they hear that sound coming out of that thing.
Why wouldn't I just put the 460 in³ big block back in it?
That still does not explain how you shift!!!! Do you just grind it from 1st gear to 2nd gear to 3rd, etc? What about coming to a stop, do you just yank it out of gear into neutral? What about taking off, same thing same question. I see how it works and I get that but I don't get how your shifting without a clutch.
Like I mentioned in the video ,showing you how to shift is the next video but no there's no grinding.😀
WHY????
Cause it's awesome 😎
I feel like I’m watching a third world how to video.
Third world or not it sure is fun.
Lmmfao just because you can do something doesn't mean you should
That's probably true sometimes but these projects have been pretty good to me.
I'm just joking with you bud, if it keeps you busy and makes you happy keep it up
👍
Just cause you can do something doesnt mean you shouldnt! The worst question ever answered is the one never asked
👍
All that a for a vehicle that'll be as useless as tits on a bull an as slow as grandad on his mobility scooter an a waste of a f350 chassis
Hahaha, actually tits on a bull are very important, you would never want to breed a bull that had any extra false tits because he could pass those bad genetics down to any female offspring, then their young could potentially try to suckle a false tit. So , I hope you learned something today as I did , you don't know Jack about bulls or Keyfarm projects. Thanks for watching.
I see you're stealing russian idea 💡💡💡💡
I've never seen a Russian do this, several Americans, but no Russians
i seen lots of russians do this@@ChrisfromKeyfarm
👍
way to much talking !
It's a " how to " video, that requires talking LOL.