Finally got to pulling the transmission in the Vette again
New personal best of pulling it all out in just under an hour. I suppose practice does make perfect as I think this is the 6th time now.
To my surprise it was not the fork that had failed. I had assumed clearancing it to fit the new clutch assembly had weakened it and it had cracked or bent. What I came to find is in the next photo.
The transmission separates from the bellhousing and between those two pieces is where the pivot ball for the clutch fork threads in. The threads on the ball are reverse thread and tighten into the bellhousing from the inside with an allen key. Then, as you can just make out by the threaded portion stuck in the middle of the allen, is a lock bolt. This threads into fork ball and the lip of this specialty bolt sets in the recessed lip of the bellhousing and keeps the ball from baking out. Then with this sandwiched in by the transmission, the whole assembly is locked in. Somewhere along the line, the head of the lock bolt broke off its thread part and had allowed the fork ball to start backing out. This allowed the fork to contact the pressure plate again.
So at least I know what went wrong and is not actually the fault of any of my new clutch installation, unless of course I over torqued this bolt. Who knows, but a new one is ordered and while it is out I will have the flywheel surfaced and probably the pressure plate too. They are new, but they show some hot spotting and since they are out, why not?
I also need to figure out what to do about the exhaust while I am in here. I have always hated it as it droned like a MF. Some PO had removed the resonators and then I tried removing the mufflers to see if they were the cause (common problem on C4s), but it didn't. I really want to do side pipes or side exits, but that seems hard as keeping the cats for CA smog makes location a bitch. That of course may change soon, more on that in a later post.
Vette on CA-2 after a lovely drive