11 1/2" clutch wear

[Michael C Henry]

I initially had a problem with my clutch master cylinder (7/8") didn't have enough volume. I had to run verry little clutch freeplay to still get adaquet clutch release. I ended going to a larger 15/16" clutch master cylinder. I gave up some leverage (it takes a little more foot presure now). I didn't keep up with adjustments ,let the freeplay disappear and the throwout bearing froze up and took out the fingers in the pressure plate. I went to a larger diameter master cylinder to have more volume. I now have generous freeplay and full clutch release. I can actually see the freeplay and notice when it's reduced. I try to keep the idle as low as possible and if I think it's going to be while before moving I put the transmission in neutral and release the clutch to keep throwout bearing wear and tear to a minimum. The engine idle is about 600rpm (much less and it starts limping doward) but If I try to engauge the clutch at that rpm it'll cause the engine to start dieing , so now I have to try and save it and still leave the lite in a reasonable time. Better low end throttle response would help. A better state of tune and some practice will help.

[patrickt]

Originally Posted by Michael C Henry

...but If I try to engage the clutch at that rpm it'll cause the engine to start dying , so now I have to try and save it and still leave the lite in a reasonable time. Better low end throttle response would help. A better state of tune and some practice will help.

You have to give a little throttle at the same time you ease out our clutch ... that's just the way it is. I bet if you upped your idle to 750RPM, slightly richened your idle and, if you have a solid lifter cam, loosen up the lash a little bit, then you'll find your take offs will be a good bit easier.

[jwd]

Originally Posted by Michael C Henry

I initially had a problem with my clutch master cylinder (7/8") didn't have enough volume. I had to run verry little clutch freeplay to still get adaquet clutch release. I ended going to a larger 15/16" clutch master cylinder.

J


Just curious, what slave cyl. are you using? Wilwood and CNC all require a 3/4" MS in order to have full movement of the slave. Anything larger actually moves the slave too much and you can blow the seal out of them.

Jim