Double shaft motor?

[birddog1148]

This guy keeps advertising this:

http://sandusky.craigslist.org/for/2583510257.html

What is the second shaft?

 

[kendelrk]

im not sure if im right or not, so dont hold me to my awnser, but i beleive that was for like maybe a snowblower, sort of like a built in jackshaft to change the gear ratio, for self propulltion

 

[r97]

IIRC, second shaft is an extension of the camshaft. often used on snow blowers to drive the rear wheels. should work fine on a kart.

 

[devino246]

IIRC, second shaft is an extension of the camshaft. often used on snow blowers to drive the rear wheels. should work fine on a kart.

Im thinkin so too. Keep in mind that the two shafts will rotate in opposite directions.

 

[Doc Sprocket]

You could use that with a belt tensioner, centrifugal clutch, or 2-piece CVT like a comet 40. The cover has no provision (or space, thanks to the camshaft) for a self contained CVT like a TAV2.

 

[Russ2251]

This engine will require removal of auxiliary PTO to be kartable.

 

[kendelrk]

why is this russ? my tec had one and it never got in the way of running a cent. clutch

 

[B man]

you could use the other shaft for a alternator to!

 

[Russ2251]

If you have enough clearance, then by all means leave it alone. I did have clearance issues and therefore had to be removed.

 

[digschopper]

the small shaft DOES run backward,and at half crank speed. an alternator would be useless. i'm building a mini-trike(chopper) for my daughter,and found one in the dump. there doesn't look like enough clearance for a clutch. my plan was clutch/chain from crank to jackshaft for forward,and pulley/beltfrom aux. shaft to jackshaft for reverse. reverse would have higher reduction,and back the trike without any throttle. hold rev handle back to back up(tightens belt)then a spring returns it to "neutral" (slip). again,clearance for clutch? it's a 5hp briggs tiller motor.

 

[r_chez_08]

Sounds like a possibility. IMO I would gear the reverse for approximately 1/3 of the speed of forward and use a belt tensioner powered by, say, a lever or additional pedal?

 

[digschopper]

i guess i wasn't clear on that;reverse is a idle-speed only ,so the clutch doesn't engage forward. it backs only while handle(to tensioner) is held on. i have it drawn out on paper,but again,i don't believe the clutch will clear the cam pulley. the motor i'm using for mock-up has thrown a rod anyway.

 

[digschopper]

does the tecumseh 2-shaft have more spacing between shaft centers? that could be a way out for me.