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Old 06-01-2009, 12:16 AM   #40 (permalink)
The Atomic Ass
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Join Date: Oct 2008
Location: Mason, OH
Posts: 535

Overland - '24 Nissan Versa S 5MT
90 day: 37.61 mpg (US)
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Quote:
Originally Posted by Ptero View Post
Wow. That is cool. Take them the clutch and run the idea by them. Let me know what they say.

It looks like you could cut out the center on a lathe, ream the inner bore of the sprag clutch to fit, attach and weld the splined section to the overrunning clutch, then weld the clutch (perfectly, with a jig and dial indicators) to the center.

But placing the sprag clutch at the engine instead of the rear hub changes the model of overrunning clutch you will need and keeps a lot of stuff spinning when you're coasting that shouldn't be. Definitely not the best approach imho.
Actually, the spline is integrated into a plate, which is then riveted to the clutch drum. Build new plate with over-running clutch, punch off old plate, bolt or rivet new one on. Easy.

This would not be at the engine, though. The clutch is not on the engine in this bike. The only thing spinning is the rear tire, drive shaft, 1 fixed gear shaft and the clutch driven shaft with the clutch drum on the end of it. It really does spin rather freely, with some good gear oil in it.
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