QuestionDave
Thanks for the quick response
When I changed the clutch master cylinder I used the original pushrod out of the original cylinder so the rod would be the correct length.
the slave cylinder has a non adjustable rod and
mounts flush to clutch housing. I was thinking it was the clutch but didn't want to hear it. I was told you had to take the engine out to change clutch is this true? But if you have the specs to check before condeming the cluth I would be more than happy to check them out.
Thanks Scott
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Followup To
Question -
I have a 1988 944 that I have a clutch or transmission problem. I have replaced the clutch master and slave cylinder and bled. have the same problem that I thought the cylinders would
have cured. Can shift to any gear without any grinding or hesitation. Let out on the clutch pedal and only a rumbling sound and a slight roll then nothing but the rumbling sound and no movement forward or reverse.
Answer -
Hi Scott,
There is definitely a problem with the clutch assembly: the throwout bearing or disc or pressure plate.
Before you do anything else, have you double checked the clutch pedal's "free play" adjustment and spring pre-load adjustment? Also, the travel of the slave cylinder release lever can be measured against the specs to prove your hydraulic work is OK. If all that checks out, you have to open everything up to see what's up with the clutch assembly itself.
Sorry,
Dave
PS. Write back for the specs above if you need them.
Answer-------------------------
Follow-up 9-11-06
Hi Scott,
It may indeed be the clutch...you didn't say what prompted the concern and the changes you made. Was the noise all of a sudden?
In the meantime, here are the things you can check out:
1. The pedal free play: 3mm
2. Clutch slave cylinder release lever travel (as viewed throught the clutch plate inspection hole (protected by a plug) in the bellhousing. The lever travel...minimum...is 15mm to 18mm.
3. The preload spring is the spring at the hingepoint of the clutch pedal and its resting length should be 2.41" or 61mm, as measured "from the outer edge of the plate and bearing". Sorry about this description...I hope this makes sense.
If you end up with the clutch assembly as the only thing "it" could be, there is a large uindertaking ahead of you. It's actually not the engine, but it's the transmission and the central tube that have to come out...to get at the clutch.
The engine can be left in place but the bellhousing and central tube have to be moved down and out of the way after the transmission is disconnected from the rear axle assembly. It is certainly a do-it-yourself job if you have the patience.
Dave
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