Clutch issue on 968

[drhildr]

Clutch on 968 is playing up. Leave it for a day or two and the clutch pedal is literally on the floor. Hook your foot under the pedal, flip it up and you get a half pedal. Pump it a few times and you are good to go. But you can loose it on the go - a bit disconcerting as you bowl into Quarry at 150mph with no clutch and a box full of neutrals!!

Initially thought it was in need of a bleed but just gave it a good going over, no obvious leaks, bled it through - all seemed well only for problem to still be around an hour later.

Any ideas?

Edited by drhildr on Wednesday 14th November 17:42

[Sandy59]

If there's no external leaks, then maybe a seal problem inside the master cylinder ??
Is there not a spring that's supposed to keep the pedal up anyway ??

[plenty]

Likely to be the master or slave cylinder past its best.

[gtphile]

Sounds like an internal seal failure in the slave cylinder to me.

Might also be worth checking the clutch flexihose wich runs from the master to the slave, as they run down the back of the engine, and get very hot.

[DKL]

I'd go with the slave. Mine didn't show any real fluid loss once I'd topped it up and no visible leaks but once changed all was well.

[tr7v8]

Slave is normally favourite here. It is inside the bellhousing & when it leaks it won't be visible. After that it is master then pipe/hose.

[blade7]

drhildr said:

Clutch on 968 is playing up. Leave it for a day or two and the clutch pedal is literally on the floor. Hook your foot under the pedal, flip it up and you get a half pedal. Pump it a few times and you are good to go. But you can loose it on the go - a bit disconcerting as you bowl into Quarry at 150mph with no clutch and a box full of neutrals!!

Initially thought it was in need of a bleed but just gave it a good going over, no obvious leaks, bled it through - all seemed well only for problem to still be around an hour later.

Any ideas?

I've never had to bleed my clutch but I understand it can be tricky to get all the air out, perhaps have it pressure bled before replacing parts. Hope the new engine is going well, did you buy the new rods in the end ?.

[DKL]

I used an easibleed successfully. Just run plenty of new fluid through under pressure - access is the worst part.