[F500] Secondary clutch keyway

[Jeff Blumenthal]

Jared,
  1. A little side-to-side movement of the secondary is proper. It 
should be approx 1/8th inch.
  2. The slop you describe that allows that axle to turn before the 
secondary is not good. I'd suggest you take the clutch off the jackshaft 
and inspect the keyway in the jackshaft and the clutch. Also inspect the 
key itself. You do not want any play in the fit of the key in either 
keyway. Look for wear and replace whatever part(s) are no longer square 
and tight.  If you are sure these all look good, check out your bearings 
and/or bearing carriers on the jackshaft.
-Jeff Blumenthal

Jared Utz wrote:

> A couple weeks ago at a race, my brother and I noticed that there was 
> slop in the keyway on his jackshaft.  The slop allowed the axle to 
> turn a little before the secondary clutch.  I just noticed the same 
> thing on a car I just bought.  Is there supposed to be slop like 
> this?  In my situation, the jackshaft is new and the keyway is the 
> correct width.  If this is not good, I guess my secondary will need 
> repaired or replaced.
>
> Also, on both of our cars there was slop for the secondary clutch to 
> move side to side on the jackshaft.  Again, does everyone run the cars 
> this way and how much slop is good?
>
> Thanks,
> Jared
>
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