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Car Forum / Porsche / Porshe 944 / August 2005Clutch problem
1987 924S aobut 50K miles. Original. History: A few years ago, my buddy took the car for a ride, and the clutch pedal stuck on the floor. I reached down and pulled the pedal up, meeting only firm resistance initially, sort of a "sticky, gummy" feel, then full release. No problems or issues since - until yesterday. The clutch refused to come all the up when the pedal is released (not quite stuck on the floor like the earlier incident). I could easily use my foot to return the pedal all the way up, over a "sticky part" ofthe pedal's travel. The problem began to get worse, to the point where now disengaging the clutch and shifting is becoming problematic. Any idea what might going on here? Thanks. > 1987 924S aobut 50K miles. Original. > [quoted text clipped - 12 lines] > > Any idea what might going on here? Thanks. Well, IMHO, it sounds like something is sticking (surely not!, you say). So that could be the pedal (unlikely I think), the cable or the clutch. How about as a start, you disconnect the cable at the clutch end to find out if it's the cable or the clutch? Hopefully it will be one or the other (and I expect the cable is a good bit cheaper) rather than some strange combination of the two. Dave I believe the 87 924S is the same mechanically as similar year 944, in which case the clutch is hydraulic. I would check (In this exact order) the following: 1. the clutch pedal pivots on a shaft - be sure that the pedal itself is not binding. There is also a helper spring that can break and cause problems 2. check the clutch master cylinder for corrosion - this is what I would suspect - if you haven't changed the fluid and flushed it every couple of years, it is very likely full of gunk 3. check slave cylinder 4. it is possible that the hose that carries brake fluid from the resivoir to the master cylinder (clutch master cyl) is collapsed, or that brake fluid level is too low. >> 1987 924S aobut 50K miles. Original. >> [quoted text clipped - 28 lines] > > Dave IF it is not the cable................ I just handled a problem like this on a 1978 924. At first I thought it was a slipping operating lever for the clutch release bearing fork. NOT I had to change the torque tube since the input shaft that goes through the clutch into the pilot bearing was destroyed by the bearing. I will assume, in the case of this '78 924, that the input shaft started to wobble around and knocked the clutch release bearing off of the clutch fork. NO DISENGAGEMENT OF THE CLUTCH WAS POSSIBLE. So it needed, clutch kit, pilot bearing, clutch release bearing guide, rebuilt torque tube, 1 rear suspension mounting bushing and some labor to remove the rear suspension. All is well again. > 1987 924S aobut 50K miles. Original. > [quoted text clipped - 14 lines] > > Any idea what might going on here? Thanks. Bleed the clutch at the slave cylinder. It sounds like you have either low fluid or a slug of air got in to the system. I made a power bleeder so I can do it alone, other wise get a helper. It is fairly easy to do. On a 944 you might have to pull the starter to access the bleed fitting. Mine did the same thing. I had a leak on the line from the master cylinder to the slave. > 1987 924S aobut 50K miles. Original. > [quoted text clipped - 12 lines] > > Any idea what might going on here? Thanks. |
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