Building small tractor

[Pulse]

Hello,

New here, In the process or designing and building a small utility type tractor. Im considering the Kohler ELH775 30 hp gasoline engine since its liquid cooled for in cab heat.

My current road block in the transmission, I spoke with comet clutching and they have a perfect cvt drive and driven pulley for me, I just need to find a transmission? Im looking for a low speed transmission with at least forward/neutral/reverse. anything more than that would be a bonus. I only want the machine to do about 15mph but I can gear down with the sprockets if necessary.

Does anyone know of anything that is available that would work for me?

Thanks in advance,

 

[bcp]

Inboard boat gearbox, maybe.

inboard boat gearbox - Google Search

M-151 transmission: front and rear output shafts

m151 transmission - Google Search

Bruce

 

[Pulse]

Thanks for the suggestion bcp,


I contacted ZF about their marine gearboxes, they said they are not designed to withstand the torque associated with a wheeled drive train

I also thought that may be the perfect solution, has anyone else used a marine gearbox in this sort of application?

 

[bcp]

Others that come to mind are golf cart, motorcycle, and ATV transmissions. Or hydraulic pump-motor drive.

Bruce

 

[airbiscuit]

If you are looking to buy all new components, isn't this going to cost more than buying a tractor? I think it's cool to build your own. It would be helpful to know its intended purpose, how you will use it. What are you going ti use for rear differential, frame, anticipated tire sizes, etc.?

I'm asking because I'm wondering about doing something about re-powering an old Allis Chalmers B of similar. Maybe Suzuki Samurai parts would work?

Interesting project. Will be fun to see how it comes together.

 

[sixdogs]

Do some searches in on this site using the Google box in the upper right. There are some very talented people here that have built tractors better than a factory could.

 

[4570Man]

How about hydraulics like a skid steer. The biggest downfall is $. A more budget friendly solution would be an automotive manual transmission with gear reduction in front of it. Or you could use duel 4 speeds which doubles your gear reduction.

 

[davedj1]

I thought by definition a CVT was a transmission?
I would look into finding a world class T-5 transmission, not too big or bulky. Or any older 4/5 speed transmission.
Belt drive the transmission then you can have a tensioner to act as a clutch for changing gears.

 

[Travelover]

It used to be common to make your own tractor, or at least off road buggy, out of old cars. Back then two manual transmissions would be put in series, giving you tremendous gear reduction and fast speeds if you wanted it. You need to visit a good pick-your-own-parts junk yard to find reasonably priced parts.

 

[Pulse]

If you are looking to buy all new components, isn't this going to cost more than buying a tractor? I think it's cool to build your own. It would be helpful to know its intended purpose, how you will use it. What are you going ti use for rear differential, frame, anticipated tire sizes, etc.?

I'm asking because I'm wondering about doing something about re-powering an old Allis Chalmers B of similar. Maybe Suzuki Samurai parts would work?

Interesting project. Will be fun to see how it comes together.

Im building a 8x8 articulating mini forwarder, the only ones you can purchase are in Europe and are very expensive, i believe i can build it far cheaper.