Removing oil from clutch disk

Pritchard · 03-25-2002, 07:25 AM

Otto recomended using acetone to remove the oil from a clutch disk. My question is how? Do I need to soak the disk in acetone or just wipe it off with acetone and a rag? It seems like soaking would be the solution.

Any ideas?

Thanks

David Pritchard

Zeke · 03-25-2002, 09:12 AM

More like rinsing. Flooding or spraying the surface generously. Spray brake parts cleaner works too. IMO the disc will never be as good as new, but will work.

norustscott · norustscott's Garage

second the spray brake parts cleaner.

MASSIVE TYPE IV · 03-25-2002, 06:55 PM

Any clean fast drying solvent will work, I like carb cleaner..I sometimes set them on fire with a touch of ghas, and let it burn off, but thats only in extremes.

914986 · 03-26-2002, 09:04 PM

C'mon for cryin out loud, replace it!!! A new one in a street car is at least a 30,000 mile part. Do you want to put it together, and pull it all back apart again, because you didn't get a new $95 part??? Let's see $95 divided by a minumum service life of 30k miles is .00331666. So you are going to cheap out for 1/3 of a penny a mile?? It's your car though do whatever makes you happy.

PK

Zeke · 03-26-2002, 10:01 PM

Wait a minute, PK. Before you flame out, consider that it might be a new disc and he had a little mishap. Even if it had a few miles on it, the disc, plate and flywheel all know each other. New disc for me always means resurfacing plate and probably flywheel. I'd give it a go because I've done it and it worked. Just my last .02, I'm all outa change now.

914986 · 03-28-2002, 07:20 AM

OK, let me qualify. I guess I did I come off too brash.

If you are just trying to get some oily/greasy fingerprints or maybe even a small oil/grease spill off the disc, then maybe you'd have luck cleaning it as Jake suggests. If the disc came out and is oil soaked from a leaky input or main seal, then you are wasting your time and money.

Otto · 03-28-2002, 08:26 AM

Before you try to clean the clutch disc, you should measure it for wear tolerence. The compressed thickness should be 9.2plus or minus 0.2mm. The throw away limit should be between 8.0 to 7.8mm. Acetone or MEK will get rid of some of the oil, but you should still take some sand paper to the disc to rough it up a bit and get rid of more of the oil. But still, it is best to replace it with an early 911 disc with six springs. Better wear, more easily engauagement and less chatter. OTTO

Pritchard · 03-28-2002, 04:54 PM

Thanks for all the input. The disk wasn't too bad to begin with. I used the acetone and sand paper. All should be OK.

Pritchard