HM100 with tapered crank

[toomanytoys]

10 HP TECUMSEH GENERATOR ENGINE

Thought about picking one of these up. How difficult would it be to find a new crank for it?

Thinking about stuff one of these in my super bronc.

 

[countstevula]

it has a fixed throttle too

 

[125ccCrazy]

I have a 3/4" keyed crank

 

[delray]

i would say that would be dirt cheap if you know how to use a lathe and turn the crank down and keyway it and if you have some junk 8hp or 10hp motors around you could easily fix the throttle setup........:thumbsup:

 

[toomanytoys]

I have a nice hm80 with a lighting coil with a new carb. would that stuff swap?

 

[The Restore Kid]

The block is the same (base) I'm pretty sure they are a different bore, not sure about stroke..

 

[roccosbike]

The HM100 has a bigger connecting rod journal than the HM80 crank.The HM80 and the H70 share the same conn rod but different cranks that wont interchange.the HM100 is bigger @ the journal although stroke is the same.

 

[roccosbike]

The HM100 has a bigger connecting rod journal than the HM80 crank.The HM80 and the H70 share the same conn rod but different cranks that wont interchange.the HM100 is bigger @ the journal although stroke is the same.

The HM100 crank uses the same con rod too. So the crank in an HM80 and HM100 are the same.The crank Randi has should work for you.

 

[roccosbike]

I have a nice hm80 with a lighting coil with a new carb. would that stuff swap?

Yes. unless the 10HP motor has an external coil in that case you would have to drill and tap the bosses under the flywheel for the points set up.everything should swap between the two though accept pistons.

 

[Mark G]

The HM100 crank uses the same con rod too. So the crank in an HM80 and HM100 are the same.

So it's the same rod for H70, and HM80 and HM100?

 

[roccosbike]

So it's the same rod for H70, and HM80 and HM100?

Yes, they all share the same con rod but the H70 has a different crank.

 

[Mark G]

Good info, thanks:thumbsup:

 

[The Restore Kid]

I know if ya try running the Tec star rod in the smaller blocks it hits and needs trimmed out some, but a stock rod probably clears from one to another? :shrug:

 

[toomanytoys]

If I ever stop wasting my money on other projects, then just maybe I could get a chance to order one of these and try to swap out my parts.

I'd love a new HM100 with a lighting coil for my super bronc :thumbsup:

 

[Tafc]

I received 2 of these last week , 1 on super bronc , 1 on lil Indian 5000 . Crank was easy to machine .motors run great