Home  |  Forums  |  914 Info  |  Blogs
 
914World.com - The fastest growing online 914 community!
 
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.
 

Welcome Guest ( Log In | Register )

> Tranny bearing: new vs old style, with pics!
Dr Evil
post Mar 21 2006, 07:25 AM
Post #1


Send me your transmission!
***************

Group: Members
Posts: 23,002
Joined: 21-November 03
From: Loveland, OH 45140
Member No.: 1,372
Region Association: MidAtlantic Region



I have found these new style bearings in only two of the trannies that I have rebuilt. The old style input shaft bearing at the intermediate plate has a fragile brass cage for the balls. This new style, of which I have never seen a failure (in the two that I have seen on high milage trannies) has a steel cage for the bearings. I was reacently able to order the new style from GPR so I figured I would take some pics for posterity.

First, the old style bearing cage and its common failure -disintegration.
Notice the sharper peaks on the cage when comparred to the new/old style bearings in the next pic. The peaks could be due to wear, but I am not sure.


Attached image(s)
Attached Image
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
 
Reply to this topicStart new topic
Replies
Dr Evil
post Mar 21 2006, 08:04 AM
Post #2


Send me your transmission!
***************

Group: Members
Posts: 23,002
Joined: 21-November 03
From: Loveland, OH 45140
Member No.: 1,372
Region Association: MidAtlantic Region



Mike,
that is a good question. I don't know. I do know that for the longest time Red-beard and to a smaller extent I have been looking for replacements for this bearing that resemble the new style due to the aformentioned problems with the old style. He found that the flanged bearing was not offered by any vendors as it was a Porsche specific bearing and was proprietary or somthing along those lines. Having a non flanged bearing flanged would negate any cost savings so we gave up. Now these have surfaced and are not as expensive as they used to be. They are still about $150, though (same as the old style).
User is offlineProfile CardPM
Go to the top of the page
+Quote Post

Posts in this topic


Reply to this topicStart new topic
2 User(s) are reading this topic (2 Guests and 0 Anonymous Users)
0 Members:

 

- Lo-Fi Version Time is now: 16th June 2024 - 11:10 PM