Slave cylinder

[Detroit Bill]

I have been monkeying around with with my slave cylinder and I have discovered a few things. I did this with guidance but I think some could learn from it so I thought I would share.

Be aware if your slave is not set up and adjusted properly it will cause shifting problems (duh, right) But the clutch may feel correct.
Here was the slave setup in my car as it came.



Behind the piston of the slave cylinder was this spring.


With the spring in it is difficult if not impossible to adjust the clutch. There will always be pressure on the fork.

I removed the spring at which point the piston went too far back in the cylinder and the oil began to leak past the seal.




The seal is "blown up" by oil passing through the holes in the back of the piston. The rim was past the bleeder hole fluid would leak past when the piston went all the way back.



I put a button of weld on the back of the piston to lengthen it by enough to stop the leak and ground it to a measured length.

I then bled the slave and compressed it so I knew it was bottomed and then adjusted it with around 1/16" of play. When the slave cylinder settled it took up the slack.

I also changed the spacers and made a new slave clutch rod from a grade 8 bolt.

Here is a photo installed without the boot so I could easily see what was going on and adjust it.



There was a few effects from this adjustment.
1.) The car goes into gear, shifts and downshifts more easily.
2.) The clutch engages further from the floor telling me I gained fork travel
3.) A ticking I would get from the throw out bearing went away.

So if your Tremec does not shift as smooth as you would like you might want to check your slave setup.

I am going to make a new bracket to center the slave cylinder rod in the bore. But other that that I am very happy with it.