Clutch sucks down and Noise in Transmission. HELP!!!

Vipergq · 01-04-2001, 01:17 AM

I know this topic has been tackled before but my problem is a little more extensive. First off, When My engine is off, the clutch feels absolutely normal. As soon as the engine turns on, there is a clicking that goes wit hthe revs of the engine that I can feel at the pedal and the noice comes somewhere in back in the transmission. Once, the clutch pedal is pushed, it is sucked to the floor and the rattling seizes. I know that the clutch sucking to the floor is the master or slave cylinder, but I am moe worried about the clicking in my transmission. Or is that whats supposed to happen when the master/slave cylinder go out. OK, now this next question is a doozy! I had a clutch job done w/ an alluminum flywheel. Ever since the job, the timing in my car had been WAY off and it felt like it was sputtering really bad and backfiring sometimes. While I was driving and slammed the clutch down during a race, something kinda popped and the pedal went to the ground. It was still somewhat drivable just a little harder to work the clutch, but there was a miracle! The sputtering had completely stopped and felt fine(except for clutch). then 2 days later the clutch finally went to the ground for good and stopped engaging completely. Anyways, my question is "What the hell is going on?" A question for the porsch pros, Please help, Thanks!

Panzer909 · Panzer909's Garage

I'm starting to develop a rattle from the transmission as well. Did you get your throwout bearing replaced with the clutch job?

Vipergq · 01-04-2001, 01:49 PM

the problem is, its not so much a rattle from the Tranny, that would not bother me as much. It is a pretty strong clicking that revs with the engine. I thought it may be the throwout bearing, but not sure. Yes it was replaced , but can still go bad i guess.

drew1 · 01-04-2001, 02:26 PM

Viper,
I believe you and Panzer have it figured out with the throwout bearing. If it's not, you'll probably find out what it is (rubber going, fork assy bad, pilot bearing, etc) when you check the throw out bearing.

Is your timing really off, maybe from the set screw on flywheel in the wrong place, or is it running rough from not as much dampening?

drew1

edit: noise may be the torque tube since it quits when clutch is mashed.

[This message has been edited by drew1 (edited 01-04-2001).]

Johns86_944 · 01-05-2001, 11:52 AM

I have some of the same problems. I have a rattling tranny too. I also have a grinding bearing type noise comming from the gear shift area. Both go away when the clutch is depressed. I have heard that the tranny is noisy anyway on these cars because of a idle shaft, especially on high mileage cars (I have 250,000 on mine). The tranny rattles a bit, but the grinding coming from the front, could that be the pilot bearing or the that tube? are there bearings in the tube or is it echoing noise from the tranny? Has anyone tried any oil additives that might quiet worn trans? If the pilot bearing is bad, can I wait till the clutch needs doing? Thanks.

Panzer909 · Panzer909's Garage

Try putting the car in neutral with the emergency brake on. Get out, stand outside of the car and walk around it. Does the sound actually seem as if your muffler is bad? Well, I had this same mysterious rattle on my '72 TR6 some time ago. The shift action was fine. I pulled the tranny, and the clutch was in good shape. The throwout bearing, however, was utterly destroyed.

I've heard conflicting messages: some say the grinding when in neutral and under acceleration is fine, but I just cannot see how this can be, as SOMETHING in there is definitely wearing away.