Looking for advice

[Hbouton]

I've got a old murry cart I want to put a 15 hp on it(that's what I had laying around).The motor came off a wood chipper it has a clutch on it.The cart has large sprockets on it one on the axel and one on the bar.The clutch is belt and the drive is chain.Should I change the clutch to drive a chain or should I put a t/c on the bar to drive the axel don't know a **** of a lot about this stuff any help or thoughts would be appreciated.

 

[bob58o]

The bar is referred to as a jackshaft.

Does a wood chipper use the same type of clutch as a go-kart? I don't know what kind of shaft the engine has.

Does the big sprocket on the jackshaft have a pulley and the little sprocket welded to it? Are the sprockets / pulleys welded to the jackshaft?

You can look for a belt clutch that fits your 15hp. If the engine fits that might be all you need. Looks like a 15horse will have clearance issues with the big sprocket on the jackshaft.

Otherwise, if going with a chain from the engine shaft, you might be able to go from a clutch and just wrap a chain around the big sprocket on the jackshaft (if chain pitch is compatible), or you might need to change out all the stuff on the jackshaft if there are clearance issues or chain compatibility issues.

If you have to change out all that stuff on the jackshaft, you might just go with the TC. The 40 series knockoffs are pretty cheap if you don't need a backplate. You have a jackshaft set up already so you don't need the backplate. You'd need a driver unit, a driven unit, a belt, a sprocket, and some lock collars.

 

[Hbouton]

I think I will replace the sprocket on the jackshaft with a t/c I can't seem to find any clutches with a sprocket on them it might be better that way seeing how I plan on going in the woods with it.

 

[itsid]

you cannot find a kart centrifugal clutch?
you must be kidding!

maxtorque, noram, hilliard.... in hundreds of webshops and ebay offers....

'sid

 

[Hbouton]

I found a site guess I was looking in the wrong place.But let me ask in your opinion what do you think would be a sufficient clutch for a 15 hp a lot of sites don't specify hp ratings.

 

[landuse]

You might need to get something like one of the high end Noram clutches.

https://www.noramclutch.com/

 

[itsid]

with decent gearing I bet the std MaxTorque SixShoe will still be able to handle the torque of a 15horse quite well.
Never had any of hilliards clutches but apart from hilliard selling racing clutches that are certainly capable of handling the engine's power, I think even the hobby grade clutches would still serve you well.

most problematic thing with all centrifugal clutches is heat.. from a slipping clutch..
usually caused by insufficient gearing and the lack of power to reach full locking speed quick enough.
racing clutches are more tolerant to that and they also are mostly a bit beefier to also tolerate sudden load changes better.

Still a good quality hobby clutch like the aforementioned maxtorque for example
can certainly handle quite abit of power above their nominal rating.
I've seen them work reliably on stock 13 horses already...

As soon as you even intend to mod the engine to a higher rpm and or power output,
I'd also say you'd want a race clutch instead,
but frankly in those cases I'd suggest you to go and buy a series 40 TC instead.

remove the sprockets from the jackshaft and instead mount the series 40 driver (inboard!)
your kart's setup essentially screams to get a series 40 mounted with a jackshaft like that.

'sid