Slipping clutch blues...

[Supra chick's dad]

I think after playing with it yesterday that the slave could be the problem. It could be the master though but I've put 2 new ones on so far. Whichever part has the pressure relief valve built in is likely the problem part as the clutch appears to work fine when manually applied. I can't drive it without the slave installed, but when I pry the clutch fork with a bar, the clutch works properly. The problem again is the clutch won't engage. I wasn't sure if it was slipping or not engaging as the symptoms are the same. But it appears to be dry in there and with the slave removed the disk is on the flywheel. When I reinstall the slave and pump the clutch a few times it won't engage, so I am thinking the pressure relief is stuck and holding the disk away from the flywheel.
The only other thought on this is a friend said the disk sometimes sticks to the input shaft if marine lube isn't used. But this clutch only has 10 miles on it before it started acting up. I used white lithium grease as suggested by Centerforce. I don't think it's hanging up but rather that it's not being allowed to make full contact due to a stuck pressure relief valve. Since I've tried 2 new masters (The relief valve on brakes is in the master) and no improvement, I'm gonna try a second new slave. It's the only thing that makes any sense to me right now. Thanks for the thoughts dude!