Reply to "Clutch Master and Shackle"

> I can confirm it was metric thread, but not what size.

It's an 8mm x 1.25.

> the pushrod locknut had worked loose allowing the pushrod to work itself
> undone.

I've got it back together now but have not tightened the locknut.

The CNC masters are typically provided with a short and long pushrod.
The short pushrod is for the cars equipped with a clutch effort reduction
kit and the long is for the cars without. I searched through a box of
parts provided by the previous owner and found the long pushrod. The
short pushrod is in the CNC master. The previous owner purchased the
parts from PPC, so I called them. The lady on the phone said Dennis
couldn't be disturbed but she measured the two pushrods they provide.
The long one was the same length as mine. If she measured the short
one properly at 2", it is shorter than the OEM pushrod (which I measured
at 2.36" or 600mm). With the slave pushrod at the length indicated in
the TSB's, there was a bunch a freeplay and not enough stroke to properly
disengage the clutch. By lengthening the slave pushrod, I was able to
take up enough of the pedal slack tht it's working pretty well now.
I had to go to 3.8" on the slave pushrod length. A turn shorter and
it was releasing too low and a turn longer and it would engage at the
top of the pedal stroke.

Thanks,
Dan Jones