 tranny noise |
|
|
|
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. |
|
|
| SirAndy |
  Jan 23 2004, 02:31 PM
Post
#1
|
|
Resident German  Group: Admin Posts: 41,688 Joined: 21-January 03 From: Oakland, Kalifornia Member No.: 179 Region Association: Northern California  |
ok, so i got this noise in the tranny.
having had a oil-leak, i tought i was simply running low on oil. fixed the leak and filled up with fresh oil (swepco), noise is still there. when slowing down and downshifting, i have a "whiny" noise very similar to the noise you get when driving in reverse and letting of the gas. it's there in 2nd but even louder in 1st ... shifting itself is fine, no crunching or anything. any ideas? Andy |
   |
 
|
  |
Replies
| Carrera916 |
Jan 23 2004, 06:02 PM
Post
#2
|
|
Member Group: Members Posts: 292 Joined: 9-February 03 From: Pleasanton, CA Member No.: 273 |
Andy,
if its been spend for $2500 and the intermediate plate bearings hasn't been changed, I'll be damn surprised! do you hear the whinning change when you accerate or de-accerate a bit on lower gears only? such as 1 & 2? if so, there's a good chance that the plate bearings is giving you problems. you see, the force of the two gears meshing on input and pinion shafts, does move the shafts apart a bit (that can get worse if the intermediate plate bearings are shot. Now, the other set of bearings in the gearbox case that hold the pinion shaft can be a problem if the beveled gears are moved around a bit. That usually cause the whining. The surface contact between two gears can make incrediable noise if you move one gear away or closer to the other gear, hence the whining noise. I do not think the differential bearings would be the problem but I would double check to be sure its in good shape. Another area to look at, when you remove the gears from input shaft, take a closer look at the needle bearings that goes inside the gears, check that the surface of the race are smooth, not pitted....if so, there's the noise! hope this helps... jerry |
|
|
|
Posts in this topic
SirAndy tranny noise Jan 23 2004, 02:31 PM
jkeyzer Time for a new tranny. :o
Seriously whine is b... Jan 23 2004, 02:35 PM Mueller should I be getting my car ready for us to drive d... Jan 23 2004, 02:36 PM vortrex my beetle did that. bearings, right? Jan 23 2004, 02:41 PM SirAndy <... Jan 23 2004, 02:44 PM Mueller drain some of the oil, look for "stuff" in it........ Jan 23 2004, 02:48 PM jkeyzer Take it apart now before a gear shatters or a bear... Jan 23 2004, 02:49 PM SirAndy <... Jan 23 2004, 02:51 PM SirAndy <... Jan 23 2004, 02:52 PM SirAndy ok, now that i had some time to think about it, i ... Jan 23 2004, 03:27 PM Mueller the gears for reverse are straight cut instead of ... Jan 23 2004, 03:50 PM nebreitling <... Jan 23 2004, 04:21 PM Britain Smith Andy...is this noise only in reverse? If so, ever... Jan 23 2004, 05:20 PM SirAndy QUOTE
McMark Usually when you hear the noise in reverse and the... Jan 24 2004, 01:35 PM |
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:
|
Lo-Fi Version | Time is now: 15th June 2024 - 03:24 PM |
Invision Power Board
v9.1.4 © 2024 IPS, Inc.