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New clutch issue

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Old 05-29-2023, 04:19 PM
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WestInc
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Default New clutch issue

Hello everybody. My car is a 1983 Euro 928s.
So, I've refurbished the whole dual clutch and installed it tonight. When I start the car and idle, the clutch makes a "squek'y" sound. As soon as I press the clutchpedal down it disappears and everything is silent. It is like a fast "squek, squek, squek, squek" that follows the rpm of the car. What have I done wrong? Misalignment? Should I remove the clamp, pressureplate etc and have everything re-mounted again? New discs, throw-out bearing, plastic releasearmbushing, guidetube and crank-bearing was installed. Other parts was very carefully checked and was in pristine order. I followed all the great info from here on rennlist, and followed the servicemanual as best as possible. So, fire away, where du you think I should start..
Old 05-29-2023, 05:00 PM
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Rob Edwards
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Which parts of the assembly did you lubricate, and with which lubricant?
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Old 05-30-2023, 08:59 AM
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WestInc
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Originally Posted by Rob Edwards
Which parts of the assembly did you lubricate, and with which lubricant?
I used this one, sachs high performance

I followed all your advice and other inputs from rennlist, and ofcourse the servicemanual.
These parts were lubed;
Discsplines.
Guidetube/inside of throw out bearing.
Thrustwasher, against feather springfingers.
Intermidiate axel splines and tip against guidebearing.
Snap-lockring against thrustwasher.
Release arm touchpoints against T-O bearing.
Plastic cupbushing on top of the releasearm.
These parts were carefully and very moderately lubed with no excess.

Last edited by WestInc; 05-30-2023 at 02:46 PM.
Old 05-30-2023, 11:30 AM
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Mrmerlin
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where did you get the discs?
Are they fresh stock or reman?
Old 05-30-2023, 02:36 PM
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WestInc
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Originally Posted by Mrmerlin
where did you get the discs?
Are they fresh stock or reman?
I've bought original sachs parts, both of them.
1864 341 303 New
1864 342 203 N.o.s

Picture of the new engine side 341, no pictures of the other yet..

Old 05-30-2023, 02:45 PM
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WestInc
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I'm going under the car tonight or tomorrow. Remove the clamp etc. and see that everything is aligned, rotates freely and looks ok. Somewhere I did something wrong. Just cannot figure it out since I followed the procedures so closely...
Old 05-30-2023, 05:18 PM
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Guy
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Throwout bearing?
Old 05-30-2023, 05:31 PM
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WestInc
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Originally Posted by Guy
Throwout bearing?
Brand new original part...

Old 05-30-2023, 05:52 PM
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Kevin in Atlanta
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State of the torque tube bearings?

Old 05-30-2023, 06:08 PM
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Rob Edwards
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RPM-dependent squeak-squeak only when the clutch is engaged (foot off the pedal) suggests the spinning driveshaft (or intermediate shaft) is making a noise. So anything along that axis- pilot bearing, guide tube, or some new squeak in the torque tube due to some imbalance of the new clutch assembly. Was the clutch pack balanced to the flywheel?
Old 05-30-2023, 08:49 PM
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does the new guide tube fit the TOB or is it loose?
Old 05-31-2023, 06:33 AM
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WestInc
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Originally Posted by Mrmerlin
does the new guide tube fit the TOB or is it loose?
It did fit snuggly and were not loose.
Old 05-31-2023, 06:36 AM
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WestInc
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Originally Posted by Rob Edwards
RPM-dependent squeak-squeak only when the clutch is engaged (foot off the pedal) suggests the spinning driveshaft (or intermediate shaft) is making a noise. So anything along that axis- pilot bearing, guide tube, or some new squeak in the torque tube due to some imbalance of the new clutch assembly. Was the clutch pack balanced to the flywheel?
I'm also leaning towards the intermediate shaft, alignment or such. Tonight I will take it apart and have a close look at what's happening. The new clutchdiscs did not have any orientation-markings or arrows. Everything else was marked and mounted as it was before dissassembly. The old clutchdiscs did have the orientation arrow-markings.

Last edited by WestInc; 05-31-2023 at 06:41 AM.
Old 05-31-2023, 06:49 AM
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WestInc
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Many thanks for your thoughts and inputs, keep them coming if you think of anything more..... I will update later tonight when I have had a beer and a thorough inspection down under...
Old 05-31-2023, 10:07 AM
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look to see if the front driveshaft support bearing has migrated forward it should be about 14 inches back


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