Pressure plate wear., Causes. |
|
Porsche, and the Porsche crest are registered trademarks of Dr. Ing. h.c. F. Porsche AG.
This site is not affiliated with Porsche in any way. Its only purpose is to provide an online forum for car enthusiasts. All other trademarks are property of their respective owners. |
|
Pressure plate wear., Causes. |
914Toy |
Mar 19 2020, 08:21 AM
Post
#1
|
Senior Member Group: Members Posts: 727 Joined: 12-November 17 From: Laguna beach Member No.: 21,596 Region Association: Southern California |
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? |
TravisNeff |
Mar 19 2020, 03:30 PM
Post
#2
|
914 Guru Group: Members Posts: 5,082 Joined: 20-March 03 From: Mesa, AZ Member No.: 447 Region Association: Southwest Region |
From porsche pet for 74-77 911
Also found the thread talking about the washer. https://www.early911sregistry.org/forums/sh...olts-901-vs-915 Attached image(s) |
914Toy |
Mar 19 2020, 04:38 PM
Post
#3
|
Senior Member Group: Members Posts: 727 Joined: 12-November 17 From: Laguna beach Member No.: 21,596 Region Association: Southern California |
From porsche pet for 74-77 911 Also found the thread talking about the washer. https://www.early911sregistry.org/forums/sh...olts-901-vs-915 The diagram is very helpful thanks. I read the ARP article and this is what I have. My bolts are 26 mm under the head with 21 mm of thread with 16 mm of this thread in the crank. I would need bolts 10 mm loner than the ones I have to have the same length of thread in the crank. I am going to go with the cable adjustment being too short as the cause of the extraordinary wear on the pressure plate fingers. Hope I am right! (IMG:style_emoticons/default/beerchug.gif) |
Lo-Fi Version | Time is now: 27th September 2024 - 10:01 AM |
All rights reserved 914World.com © since 2002 |
914World.com is the fastest growing online 914 community! We have it all, classifieds, events, forums, vendors, parts, autocross, racing, technical articles, events calendar, newsletter, restoration, gallery, archives, history and more for your Porsche 914 ... |