legacycentral bbs

when a clutch slips what exactly cases the slip? worn out disc? worn out pressure plate? crappy throw out bearing?

can you just replace the disc and not the pressure plate?
i would assume no but i have been known to be wrong.

Generally I think it's the friction material on the disc wearing off and/or glazing. The fingers on the pressure plate can also lose their springiness over time, which could reduce the clamping force. I think.

When the throwout bearing starts dying it doesn't make the clutch slip.

You can replace any of the parts without replacing the others, but it's usually sensible to replace the pressure plate, clutch disc, and throwout bearing all at once because of amount of work it takes to get in there.

Also, a slipping clutch can pit the flywheel.

Slipping is caused by exactly what Vikash mentioned. Usually glazing of the clutch disc. When it's glazed, it's just like a drum brake. It just get's easier and easier for it to slip. It basically becomes worthless.

Old flywheels or clutches make bitchin clocks though. That's what I'll be doing with one of my peices.

thats good to know. didnt think the T/out bearing had anything to do w/it. my clutch isnt slipping now but who knows once i add more power. and i dont want to spend a bunch of money just in case but replacing just the disc is not that unreasonable.

You could also have oil or something on the clutch that would cause it to slip.

Steve