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View Full Version : Do i really need a jackshaft?!?!?!


skeltonsf
June 28th, 2006, 01:38 PM
Hey i am building my second BSR. On the last one i put a clutch. With the torq-a-verter do i need to put in a jackshaft???
Thanx for your input!!!:dizzy:

Papa
June 29th, 2006, 06:55 PM
I wouldn't think you would have to. The chain will run from the sprocket on your torq-a-verter to the sprocket on your axel.

Mike Bean
June 29th, 2006, 07:03 PM
Hey i am building my second BSR. On the last one i put a clutch. With the torq-a-verter do i need to put in a jackshaft???
Thanx for your input!!!:dizzy:

I am not sure what type of TAV you are using, but the standard TAV's I have seen and worked with, have a backing plate attached to the engine and the TAV drive sprocket is mounted to that.

From there you just run a chain from your rear sprocket to the sprocket on the TAV backing plate. Simple stuff...

Mike

Terry Skinner
July 2nd, 2006, 11:28 AM
Hey i am building my second BSR. On the last one i put a clutch. With the torq-a-verter do i need to put in a jackshaft???
Thanx for your input!!!:dizzy:

On my barstool/beertruck I am using one of the older style very-belt drives such as used on the snowmobile. See:
http://www.hoffcocomet.com/comet/aftermarket-torque-converters.asp#30
In that case a jack shaft is required. Easy to do. In my case I set up the rear axle, then aligned the jack-shaft parallel to the rear axle, then aligned the motor with the crankshaft parallel to the jack shaft. My plan is to use a chain tensioner from a motocross thus taking care of chain adjustments. You can find out a lot about this type drive system at:
http://www.hoffcocomet.com/comet/aftermarket-torque-converters.asp
HTH..........Terry