I agree with Joe G. I had a slight problem with my clutch returning at the track during an event. Joe reached under my dash and just yanked that spring out as if he was Patrick Swayzie in Road House pulling the guys throught out. Needless to say, no issues since then with the clutch staying low.

Now, I can throw a wrench into this thread with my clutch issues!!! My problem has to do with my clutch developing a mind of it's own after 4200 RPM. My pedal actually builds pressure and will get hard on my foot, restricting me from being able to press the clutch down to switch gears. If I do push hard enough, the clutch sqeezes to the floor and goes flat. On top of that, if I am in high RMP range and I just tap the clutch while in gear the clutch will dis-engage completely and will not re-engage no matter what I do with the pedal. I have to pull it out of gear and pump the clutch.

AS far as fluid, I agree with Joe on the Motul. I have done many track events and love that fluid for brakes and clutch. AS far as clutches, I have had Spec 3, Spec 3 plus, C6 Z06, and C5 Z06 clutches in my car. Stay away from SPEC!!! C6 felt great but is a pita to get in and out with the flywheel cover on. I currently have the C5 Z06 clutch with about 440RWHP and it hooks just fine. I think my issue is in the Hydro portion of the clutch system. Oh, I failed to mention, I replaced the slave, master, clutch, pressure plate, and flywheel 2 times and my problem never went away. The only part I kept between swaps was the remote bleeder. Hmmm!!!!!!!! Any suggestions?

 

Haven't had a chance to drive it yet, but static, it feels like it's harder to push the pedal in. Is that consistant with what you found?

 

100% yes. The spring literally helps you hold the pedal down. Which is what you Don't want!

The C6 spring is heavier than the C5 spring I understand too. My C6 spring actually broke in stop and go traffic, and the clutch was a lot harder.

I've got my fingers crossed for you!! The new bleeding technique with remote bleeders is showing great promise with 2 guys by the way. Jury is out on Doug at the moment but Taaz above had great results last night.

 

when Eismann's did my slave replacement, but no one thought of doing it at the time. I'm also going to switch to Motul 600 clutch fluid.
Will it be ok to just start mixing it with the OEM stuff til the old stuff eventually gets flushed out?

 

No problem at all. Motul is fine to mix with stock fluid.

 

 

I'm going to try the spring removal as well.

Dougie

 

It might be a fluke, as further testing is needed, but twice just now, I hammered through the gears, shifting at redline, (out in the country of course), and by God, the pedal didn't stick once! This was preceded by a double purge of the clutch reservoir. Could it finally be working right?

I will say that the effort to push the pedal down is much greater now, and that's something I don't like, esp at the stoplights, but am willing to live with it if this spring removal (and regular purging) fixes the problem.

 

where is the procedure for spring removal?

 

Steve, if it works, I read on here that the C5 spring is a lot lighter than the C6 spring. (makes sense as the C6 clutch pedal is much easier than the C5 going from car to car). You might try putting a C5 spring in there. Do a search for the part number, someone posted it the other day.

Doug, it's pretty obvious if you look at it. Putting the spring on is harder than taking it off.

 

We'll see if the spring removal trick continues to be the fix I was looking for, and assuming it is, I'm going to try the C5 spring and see if it still returns as it's supposed to. I ordered the C5 spring from the dealership, so I'll try it out when it arrives.

 

The removal of the spring will not work.

I suspect that the changing of the fluid is what is doing it right now, but that too, will only be temporary.

 

it has been discuss many times those springs are there to help grandpa & grandma depress the clutch pedal. when it is time for the pedal to the top it has to fight against the spring.

 

Sounds to me like a pressure plate problem. I had a '66 500hp Chevy II and at high RPM's the diaphram pressure plate was sucked in and stuck. Went to heavy three prong plate and problem eliminated.