 Rear Wheel Bearings, How much play should there be? |
|
|
|
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. |
|
|
| tracks914 |
 Jun 29 2003, 08:17 PM
Post
#1
|
|
Canadian Member  Group: Benefactors Posts: 2,083 Joined: 15-January 03 From: Timmins, Ontario, Canada Member No.: 153 Region Association: None   |
When I took my car apart 8 months ago, it was still on the raod as a daily driver. I never noticed anything abnormal about the back end when I test drove it.
Now that I am putting it back together I noticed that, without the rear axles in the wheels, I can rock the whole wheel and hub assembly up and down and side to side. This seems to be rocking in the bearing area as the rear control arm does not move. Measuring at the largest diameter of the rim there is about 1/16" movement. This "play" is the same top to bottom or side to side and is the same on both rear wheels. I am a mechanic by trade but have never worked on this type of rear suspension so I don't know if it is normal, acceptable, or just plain worn out. I have not been able to find a factory "spec" on it so I don't have something to compare to. Can anyone help?(IMG:style_emoticons/default/smilie_rolli_1.gif) Oh yeah that's a stupid question, members of this site know just about everything about 914's. (IMG:style_emoticons/default/dance.gif) |
   |
 
|
  |
Replies(1 - 4)
| tryan |
Jun 29 2003, 08:44 PM
Post
#2
|
|
Senior Member Group: Members Posts: 553 Joined: 22-January 03 From: smokey mountains gatlinburg tn Member No.: 184 |
there have been a few posts on rear bearings having some noticable slop. (even new ones!) search here and on that bird board. (IMG:style_emoticons/default/biggrin.gif)
|
|
|
|
| JFJ914 |
Jun 29 2003, 09:01 PM
Post
#3
|
|
Senior Member Group: Benefactors Posts: 813 Joined: 13-June 03 From: Alpharetta, GA Member No.: 814 Region Association: South East States
|
The key bit of info is that the axles are out. If there is no compression from a fully torqued stub axle, there's nothing to hold the double row bearing together and slop can be detected. The real question here, was the car moved around without the stub? If so, the bearing and/or the grease seal may have been damaged. This may be a good time to replace a 30 yr old bearing.
John Jentz |
|
|
|
| Anton |
Jun 30 2003, 08:57 AM
Post
#4
|
|
Royal Orange Group: Members Posts: 161 Joined: 25-March 03 From: The Netherlands Member No.: 473 |
John has a good point. Replace them now because you already have access.
We had to do the trick under the car after caliper removal, etc., and with a home-fabricated bearing extraction tool (after studying the one on the PP website (IMG:style_emoticons/default/tongue.gif) ). The only way to do it without the tool is to remove the trailer arm and bring it to a shop to press out/in the bearings. My bearings didn't show excessive play though, but made a squeeking, grinding noise. |
|
|
|
| garyh |
Jul 1 2003, 10:32 PM
Post
#5
|
|
Member Group: Members Posts: 170 Joined: 8-January 03 From: San Mateo, CA Member No.: 114 |
If the castle nut has been removed, this is normal.
If the castle nut is tight, you have fried bearings. If you have been letting it sit on the wheels with the castle nut removed, replace the bearings. QUOTE(tracks914 @ Jun 29 2003, 06:17 PM) Measuring at the largest diameter of the rim there is about 1/16" movement. This "play" is the same top to bottom or side to side and is the same on both rear wheels. |
|
|
|
|
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:
|
Lo-Fi Version | Time is now: 13th June 2024 - 05:02 AM |
Invision Power Board
v9.1.4 © 2024 IPS, Inc.