SC Clutch Drag

[Combat 911]

A couple of months ago, I was lucky enough to adopt another Porsche (my first 911). My '83 SC clutch is possessed. If I push in the clutch while in gear, sometimes the clutch drags (lightly?). Sometimes it works fine.

If I'm stuck in traffic and I stop behind a car, the first time I push in the clutch it is usually fine. Then if I let out partly (to edge forward) and push in all the way again, I will usually feel it suddenly grab and drag a bit, until I pull it out of gear.

I adjusted the cable last night. Loosened the cable, backed off the adjusting nut to 1.2 mm from the release lever. Then tightened the cable until the release lever was about 1 mm from the adjusting nut. It looked fine, worked better when driving, but when I got home and checked for clearance, the release lever was sitting on the adjusting nut again. Went through the process over.

Even when the cable seems to be adjusted properly, I can feel the clutch suddenly grab if I'm stopped in gear. (Its fine for the first 10 seconds that I've stopped, then suddenly it catches.)

Am I a victim of the rubber centered clutch? (The car has 140k miles, though I don't specifically see a replaced clutch in the maintenance records, the tranny has been R/R'd and I'd hoped that the clutch had been replaced.) From the vehicle maintenance records, the clutch cable seems to have nearly 40k miles on it. Time for a new one again?

[Superman]

How many miles on the car?

[Combat 911]

140,000 mystery miles. 40,000 miles on the current clutch cable. I think the same since the tranny was R/R'd.

[rstoll]

I renewed the cable, clevis and pin on mine recently. Made a world of difference. Old cable was a little frayed.

[juanbenae]

i was told by a mechanic that if a rubber centered clutch went 30K it would have been hung on the wall as a trophy.