Clutch Theory

jlmanatee · Dec 14, 2011

I think that in general I understand the function of the weights in the drive clutch. What I can't figure out is the set screws in the weights. The idea is for the weights to be able to freely swing out by centrifigal force, thus opening up the pully sheeves. So what's the function of the set screws in the weights? I assume the cross bolts rotate, but why lock the weights to them with the set screws? Is it because the cross bolts have more bearing surface to rotate on than the weights do against the cross bolts?

720 · Dec 14, 2011

BINGO. When the bushing used to wear on the weight if left long enough would gouge the bolt and weight hole also. Would let the weight lean over contact the roller wrong and even hit the spider

zr sled head · Dec 14, 2011

O rings keeping em on the stiff side prevents the wt from chattering across the roller, use to be super common.

coolbane1 · Dec 16, 2011

I'm back to AC this year after being away for a few years.

On my ZL's from the late 90's, the weight bushings wore out at a very quick rate with resulting damage to spiders, etc. This always annoyed me and I was happy that my Skidoo clutch did not have this need for continuous maintenance.

Does the newer AC design of fixing the bolt to the weight work better than the old design?

zr sled head · Dec 16, 2011

Blow the dust off em, clean with brake cleans then blow dry.........stellar life compared to the old set up.

firemb · Dec 17, 2011

Do you mean regular brake clean?

zr sled head · Dec 17, 2011

It's what I use.

firemb · Dec 17, 2011

Cool thanks.

Clutch Theory

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