 Spider gears worn?, What do they sound like? |
|
|
|
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. |
|
|
| nine9three |
 Oct 7 2013, 04:48 PM
Post
#1
|
|
Member  Group: Members Posts: 142 Joined: 29-December 11 From: Oregon Member No.: 13,946 Region Association: Pacific Northwest  |
The transmission was out and we replaced three syncro rings and 1st gear dog teeth. The ring and pinion looked great with very little wear. The spider gears though were very shinny. They looked worn, but no broken teeth. Buttoned everything up and now I have noise. It is not a R&P noise but a loud sshhhhhhhhhhh type of noise. I can not hear it very well in 1-3 gear with 4/5 being louder. Any thoughts? How long for new syncros to break in? I need quite a bit of tension against the shifter to get into gear. I bought the aftermarket syncros from the bird at only a slight discount from OEM.
|
   |
 
|
  |
Replies
| Jon B |
Oct 8 2013, 01:22 AM
Post
#2
|
|
Member Group: Members Posts: 73 Joined: 28-September 13 From: Vista, CA Member No.: 16,448 Region Association: None |
Differential gears would only make noise when turning, but rarely go bad in normal use. It's possible you assembled something incorrectly on the pinion stack, or shift forks aren't properly adjusted. Reverse op sleeve cannot be set too near idler reverse teeth.
Synchros should be measured for installed outer diameters, especially when using Rauch & Spiegel parts. OE synchros are Goetze. Jon B. Vista, CA |
|
|
|
| nine9three |
Oct 8 2013, 09:29 PM
Post
#3
|
|
Member Group: Members Posts: 142 Joined: 29-December 11 From: Oregon Member No.: 13,946 Region Association: Pacific Northwest |
QUOTE(Jon B @ Oct 8 2013, 12:22 AM)  Differential gears would only make noise when turning, but rarely go bad in normal use. It's possible you assembled something incorrectly on the pinion stack, or shift forks aren't properly adjusted. Reverse op sleeve cannot be set too near idler reverse teeth. Synchros should be measured for installed outer diameters, especially when using Rauch & Spiegel parts. OE synchros are Goetze. Jon B. Vista, CA Wasn't aware that synchos required measuring whether R & S or OE? QUOTE(Dr Evil @ Oct 8 2013, 11:47 AM) Does the noise happen dependent on engine RPM or wheel RPM? This will give an idea what part of the gear box is involved. What makes it worse or better? I would say that the noise is related more to engine RPM than wheel RPM. Some additional observations. The noise is getting better??? It is most noticeable when decelerating at higher RPM and it definitely not a whine. I should mention that the transmission was rebuilt and installed with a brand new Sachs PP,Clutch and T/O bearing. Initially had a very hard time adjusting the clutch free play. Wondering if clutch was adjusted too tight? Is there a break in period for fingers on the PP? Also, absolutely no noise when taken out of gear and coasting at any speed. |
|
|
|
Posts in this topic
nine9three Spider gears worn? Oct 7 2013, 04:48 PM
Jon B Wasn't aware that synchos required measuring w... Oct 8 2013, 10:11 PM nine9three
[quote name='nine9three' post='1937942' date='Oct... Oct 8 2013, 10:19 PM Jon B Too late for that now. replaced 1st thru 3rd and ... Oct 8 2013, 10:42 PM nine9three
Too late for that now. replaced 1st thru 3rd and... Oct 8 2013, 11:43 PM
Dr Evil Does the noise happen dependent on engine RPM or w... Oct 8 2013, 12:47 PM Dr Evil While the antiquated manual does say to measure th... Oct 9 2013, 07:40 AM |
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:
|
Lo-Fi Version | Time is now: 2nd June 2024 - 05:57 AM |
Invision Power Board
v9.1.4 © 2024 IPS, Inc.