[TheBrightSide]

I’ve disassembled the factory, bone stock clutch slave cylinder (older factory one that GM produced), and am wondering if you guys could help me with confirming the mechanisms/workings of this thing. From what I examined, it seems like the green-colored, flexible ribbed rubber boot around the spring and hardware, had a tear near the top.

This tear in the rubber boot/cover, let in tons of gunk and debris over the years and probably seized up the “plunger”, as well as running the internal seals… The green rubber boot was also smaller than the newer produced CSC’s, and it was stretched a good amount over the hardware. I saw a bit of rust and grease, with the plastic composite, factory release bearing support; however, everything seemed okay and not overly worn.

The only thing that seemed worn with the CSC, was the release bearing (SKF branded), where it rested against the bearing support. The needle bearings(?) inside also had a good amount of play, although I don’t believe I had any weird noises when pressing or releasing the clutch pedal. With the new CSC, I’ve applied a fair amount of high temp grease, all around the metal to metal contact points, apart from the top of the release bearing, where it contacts the pressure plate “fingers”.

Now, I didn’t physically see anything except the wear and tear on the rubber boot and release bearing, on the CSC. I know that it stopped letting out clutch fluid and barely worked, so again, I inspected the debris that was around the metal plunger in the actual CSC. I pressed it down with the plastic bearing support to test it, and then it ended up seizing… Not sure if that’s normal for failures, but it definitely seems like a contributing factor, since the spring is mainly there for additional support/actuation.

Apart from the billet aluminum release bearing support I installed onto the new CSC, I installed a remote clutch bleeder line. I used blue thread locker on the threads on the fitting going into the CSC bleed valve threads, as well as the threads to the line fitting. The new bleeder valve bolt came with it’s own red-colored thread locker, so I left it as is. I haven’t used a speed bleeder bolt in years, so I’ve forgotten how they work.