 Pressure plate wear., Causes. |
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| 914Toy |
 Mar 19 2020, 08:21 AM
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Senior Member  Group: Members Posts: 746 Joined: 12-November 17 From: Laguna beach Member No.: 21,596 Region Association: Southern California 
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To the brain trust: re slight shudder when engaging the clutch in first gear to begin moving forward.
The clutch assembly is a Sachs brand 228 mm and was installed new about two years ago onto a new flywheel on my 2.7 911 engine, and now has some 5,000 street miles on it. Also new was the throw out bearing (Sachs) and nylon bush under the clutch fork. I expected to see some clutch disk "burn" deposit on the fly wheel and/or pressure plate. To my surprise, while there were some small deposits on the flywheel and pressure plate, these parts and the clutch disk appear to be in near new condition - little measurable or obvious wear. However, the tips of the pressure plate "fingers (see pic) were worn down where the throw out bearing (TOB) contacts them. This suggests the TOB is slipping on the finger tips causing friction and wear. The TOB feels solid and spins freely like new. I don't believe this is normal wear. Any thoughts/advice?  |
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| 914Toy |
Mar 20 2020, 07:59 AM
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#2
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Senior Member Group: Members Posts: 746 Joined: 12-November 17 From: Laguna beach Member No.: 21,596 Region Association: Southern California
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Thanks all. Hopefully a new TOB and pressure plate will solve this issue. Will post progress.
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Posts in this topic
914Toy Pressure plate wear. Mar 19 2020, 08:21 AM
TravisNeff I can't help with the reason for wear. I would... Mar 19 2020, 08:32 AM
914Toy
I can't help with the reason for wear. I woul... Mar 19 2020, 08:58 AM TravisNeff I did a little digging.
https://forums.aussievee... Mar 19 2020, 09:00 AM 914Toy
I did a little digging.
https://forums.aussieve... Mar 19 2020, 11:31 AM SirAndy This is the part that the throwout bearing is ridi... Mar 19 2020, 10:09 AM Root_Werks
This is the part that the throwout bearing is rid... Mar 19 2020, 11:10 AM dr914@autoatlanta.com clutch cable too tight
To the brain trust: re s... Mar 19 2020, 12:22 PM TravisNeff OK, that is what I read elsewhere about bottoming ... Mar 19 2020, 01:00 PM 914Toy
OK, that is what I read elsewhere about bottoming... Mar 19 2020, 03:17 PM porschetub
OK, that is what I read elsewhere about bottomin... Mar 19 2020, 11:10 PM porschetub Wow that wear looks more like wear after 50,000 mi... Mar 19 2020, 01:48 PM TravisNeff that distance washer goes on the outside of the fl... Mar 19 2020, 03:28 PM TravisNeff From porsche pet for 74-77 911
Also found the thr... Mar 19 2020, 03:30 PM 914Toy
From porsche pet for 74-77 911
Also found the th... Mar 19 2020, 04:38 PM GregAmy That wear is between the pressure plate and the th... Mar 19 2020, 04:46 PM 914Toy
That wear is between the pressure plate and the t... Mar 19 2020, 08:49 PM jcd914 To me the un-even wear on the pressure plate finge... Mar 19 2020, 10:42 PM sixnotfour Aftermarket Flywheel...... :popcorn: Mar 20 2020, 12:34 AM Steve Make sure you have a 1/2" free play at the pe... Mar 20 2020, 08:12 AM GregAmy Another consideration is that the throwout bearing... Mar 20 2020, 08:23 AM TravisNeff There is also the shim behind the ball for the cup... Mar 20 2020, 09:26 AM rgalla9146 Shudder at take off ?
Possible bent throw-out fo... Mar 20 2020, 01:11 PM Mark Henry
Shudder at take off ?
Possible bent throw-out f... Mar 20 2020, 05:59 PM wndsrfr
[quote name='rgalla9146' post='2795887' date='Mar... Mar 20 2020, 08:29 PM Mark Henry
[quote name='Mark Henry' post='2795960' date='Mar... Mar 21 2020, 09:11 AM Spoke What does the wear on the TO bearing look like? If... Mar 21 2020, 09:55 AM rgalla9146
What does the wear on the TO bearing look like? I... Mar 21 2020, 01:54 PM 914Toy
What does the wear on the TO bearing look like? ... Mar 21 2020, 02:36 PM roblav1 Looks typical of clutch cable too tight. Mar 21 2020, 03:46 PM 914Toy Completed installing the tranny with new pressure ... Mar 27 2020, 02:38 PM rgalla9146
Completed installing the tranny with new pressure... Mar 27 2020, 03:38 PM |
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