Had my 72 z out for a ride tonite. Got stuck in bumper to bumper traffic and began to notice that the clutch was acting funny. I had to continuously keep the revs up... as hi as 4 grand to keep the clutch from chattering, the engine from shaking and the car from stalling. Once I cleared the traffic jam it seemed to be OK. What was wrong and how do I fix it. Thanks.

Joe

Strange I'm not really sure how you mean you had to keep the rpm's above 4000rpm. Would it stall otherwise? Are you sure it was clutch related?

If you mean jerky off the line then it's probably a scored flywheel and will mean you need to re-machine the flywheel and clutch pressure plate.

If you go to that extreme you may aswell replace the clutch plate, pilot bearing, throw out bearing, rear main engine seal etc..

However unless your clutch it poorly adjusted either causing it to stick or not grab enough then you may wanna check that.

Are you sure you were not getting vapour lock whilst in traffic?