Hi Forum
1999 Porsche Carrera with 3.4 watercooled boxer 6 cylinder engine non turbo with 6 speed manual.
Okay guys this car is making monkeys out of we two mechanics. The clutch was supposedly working fine before we changed the headgaskets. Thanks for the previous advice, as we'd used too much sealant on the valve covers and were blowing out the rubber cam seals. Redid the job with sealant applied thin and careful and all is well with the engine now.
Now its the clutch. We tried bleeding with the clutch pedal down without the pressure bleeder. The slave cylinder had been disconnected when we pulled the engine DOH! A no no - yes. So we tried bleeding it at the slave, then reverse bleeding it through a the left rear wheel brake cylinder, but the darn pedal would stay at the floor. So we went online and purchased the Motive pressure bleeder, pumped it up to 22 psi and it worked. The clutch pedal was staying up. Then we disconnected the pressure bleeder and "thunk" the pedal wants to stay at the floor. If you pump it up the pedal it will disengage for a while but within a few minutes of standing still the clutch will stay at the floor again! We think there must still be a bubble. It's not leaking. It'll hold 22 PSI all day. We jacked up the rear so its higher than the fluid res but no good. WE actually removed the clutch assy to inspect it for bad pressure plte, and its all fine! Out of ideas. HELP! it's driving us sane.