HELP! Clutch problem

[axl911]

Hi all,

This problem is frustrating me. Any reason why my 92 C2 (G50) clutch would be light sometimes and heavy other? When it's heavy, it feels gritty and does not want to return when fully depressed.

It feels light if the car sits for several days, but will feel heavy again after a short drive.

I've replace the master and slave cylinder and the flexible hydralic line. Bled the clutch carefully with a power bleeder. There is no binding on the pedal cluster, and there is no play on the roll pin?

The clutch was replaced by the previous owner last year along /w the pressure plate and throwout bearing.

Any idea why this is hapenning besides spending $1K to check the clutch.

If the fork or guide tube is seizing up, then it should be heavy all the time right?

Pls help.

thanks,
anthony

[88911coupe]

This sounds exactly like my '87 and it turned out to be the very common clutch release bearing problem but I thought they had it fixed by the 964 series. I don't think our G50's even have any sort of guide tube since they are hydraulic but I may be wrong.
Good Luck

[john walker's workshop]

what actually returns the pedal is the pressure plate. that's the main return spring. it has new master and slave and is well bled, so i would think that something is binding in the bellhousing, like the cross-shaft. if it had air bubbles in the system, the pedal would just be low, not stiff.

[axl911]

Thanks John. I'll check that.

One question, does the guide tube need to be lubed on a 92 G50?

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anthony

[john walker's workshop]

lube is always good.