Rear Wheel Bearing wobble, New rear wheel bearing has unusual play |
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Rear Wheel Bearing wobble, New rear wheel bearing has unusual play |
paintguru |
Nov 12 2017, 11:08 AM
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#1
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Newbie Group: Members Posts: 13 Joined: 24-October 15 From: Southern Oregon Member No.: 19,295 Region Association: Pacific Northwest |
Has anyone experienced excessive play in a newly installed rear wheel bearing? During the restoration of my 72 I installed new bearings. The left rear has no play and the hub rotates smoothly. The right side seems to have excessive play and with the car on the lift I can wiggle the tire and wheel left and right about 1/8th of an inch. Thinking I might have damaged the bearing during install I ordered another one. Yes I bought decent quality from Pelican and not a made in china cheapie. Again I carefully pressed in the bearing feeling confident it was not damaged but once again the hub rocks while the other side doesn't. Thoughts?
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80cap |
Nov 12 2017, 11:14 AM
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#2
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Member Group: Members Posts: 317 Joined: 6-February 15 From: ohio Member No.: 18,405 Region Association: None |
What torque value did you use on the nut? I had the same thing until I torqued it to the spec.. I can't recall the amount but it is around 260 Lb.Ft.
Brian |
paintguru |
Nov 12 2017, 11:26 AM
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#3
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Newbie Group: Members Posts: 13 Joined: 24-October 15 From: Southern Oregon Member No.: 19,295 Region Association: Pacific Northwest |
Has anyone experienced excessive play in a newly installed rear wheel bearing? During the restoration of my 72 I installed new bearings. The left rear has no play and the hub rotates smoothly. The right side seems to have excessive play and with the car on the lift I can wiggle the tire and wheel left and right about 1/8th of an inch. Thinking I might have damaged the bearing during install I ordered another one. Yes I bought decent quality from Pelican and not a made in china cheapie. Again I carefully pressed in the bearing feeling confident it was not damaged but once again the hub rocks while the other side doesn't. Thoughts? I've not yet torqued either side. I was hoping the pressure from the nut would remedy this but I'm troubled by the left side being firm without the nut being tightened. |
paintguru |
Nov 12 2017, 11:27 AM
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#4
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Newbie Group: Members Posts: 13 Joined: 24-October 15 From: Southern Oregon Member No.: 19,295 Region Association: Pacific Northwest |
Has anyone experienced excessive play in a newly installed rear wheel bearing? During the restoration of my 72 I installed new bearings. The left rear has no play and the hub rotates smoothly. The right side seems to have excessive play and with the car on the lift I can wiggle the tire and wheel left and right about 1/8th of an inch. Thinking I might have damaged the bearing during install I ordered another one. Yes I bought decent quality from Pelican and not a made in china cheapie. Again I carefully pressed in the bearing feeling confident it was not damaged but once again the hub rocks while the other side doesn't. Thoughts? I've not yet torqued either side. I was hoping the pressure from the nut would remedy this but I'm troubled by the left side being firm without the nut being tightened. I guess at this point I'll torque the nuts and see where I go from there. Thanks for the reply. |
80cap |
Nov 12 2017, 11:42 AM
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#5
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Member Group: Members Posts: 317 Joined: 6-February 15 From: ohio Member No.: 18,405 Region Association: None |
The Haynes manual states the torque at 217 to 253 Lbs. Ft.
Brian |
porschetub |
Nov 12 2017, 02:12 PM
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#6
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Advanced Member Group: Members Posts: 4,695 Joined: 25-July 15 From: New Zealand Member No.: 18,995 Region Association: None |
Wasn't there a thread on here about some bearing having a slightly smaller I.D.,seem to remember it was the SKF ones that were the issue and the FAG ones were ok ??.
This would certainly seem to be the OP's problem,I would think if it wasn't a tight fit into the trailing arm this would be an issue. I read replies with interest as I have a bearing to replace myself and it is an SKF one (IMG:style_emoticons/default/sad.gif) . |
MarkV |
Nov 12 2017, 02:52 PM
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#7
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Fear the Jack Stands Group: Members Posts: 1,493 Joined: 15-January 03 From: Sunny Tucson, AZ Member No.: 154 Region Association: None |
I had a new FAG bearing made in Slovakia or some place that had play in it. It wasn't loose in the bore the bearing center was loose in the race. I could move the wheel back and forth 1/4" and it made noise when driving. Replaced it with an ebay $15 bearing made in China and it has been fine ever since.
There is this Boxster youtube..... said there was a batch of bad bearings and that they had very little grease in them form the factory. Same part # as 914 bearing. https://www.youtube.com/watch?v=-A5kf5pXl4w https://www.youtube.com/watch?v=l9P1R2clGAU |
914Sixer |
Nov 12 2017, 04:53 PM
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#8
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914 Guru Group: Members Posts: 8,840 Joined: 17-January 05 From: San Angelo Texas Member No.: 3,457 Region Association: Southwest Region |
I discussed this very thing earlier this year. I went through 4 bearings until i got good ones. I made sure I got some NOS old style. There is major differences in the thickness of the inner bearings. The good ones that worked for me was FAG 545495AD. This is a BMW bearing but it is universal.
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cary |
Nov 12 2017, 07:24 PM
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#9
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Advanced Member Group: Members Posts: 3,900 Joined: 26-January 04 From: Sherwood Oregon Member No.: 1,608 Region Association: Pacific Northwest |
1. Same thing happened on my 911 many years ago.
2. Have you put it on the ground yet ? If not, lower and torque to spec. Torque to 217 then dial it in till you line up the next cotter key slot.Then see what you have. Maybe. But I kind of doubt it. 3. Ditto on FAG |
porschetub |
Nov 12 2017, 09:26 PM
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#10
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Advanced Member Group: Members Posts: 4,695 Joined: 25-July 15 From: New Zealand Member No.: 18,995 Region Association: None |
I discussed this very thing earlier this year. I went through 4 bearings until i got good ones. I made sure I got some NOS old style. There is major differences in the thickness of the inner bearings. The good ones that worked for me was FAG 545495AD. This is a BMW bearing but it is universal. Hopefully that's helpful to the OP,in my case the bearing I have is a BMW SKF kit,includes self locking nut and snap rings,my friend @ SKF told me it will fit a 914,the kit number is VKBA1460, the bearing is listed as SKF FW109 for 914 fitment. I trust my bearing guy so hopefully all will be good as its not a job you want to be doing too often. Thanks Mark. |
ThePaintedMan |
Nov 13 2017, 08:34 AM
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#11
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Advanced Member Group: Members Posts: 3,884 Joined: 6-September 11 From: St. Petersburg, FL Member No.: 13,527 Region Association: South East States |
The double row bearings are very difficult to over-torque. In fact, they rely on a great amount of torque to seat the balls and extend the life of the bearing. Went through 3 of them on a client's racecar till he trusted me that 100 ft lbs wasn't enough (IMG:style_emoticons/default/rolleyes.gif)
I'd be willing to bet that once you torque to 217+ ft-lbs, you'll see the slop disappear, |
McMark |
Nov 13 2017, 09:18 AM
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#12
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914 Freak! Group: Retired Admin Posts: 20,177 Joined: 13-March 03 From: Grand Rapids, MI Member No.: 419 Region Association: None |
Getting the slop to disappear requires that the stub axle be fully seated into the hub, and the hub to be fully seated against the bearing. Rust, dirt, or damage can keep things from seating fully by hand. Most of the time those factors are irrelevant against 200+ft/lbs of torque, so it's not a problem once torqued. If you really want to go the extra mile, make sure those components are clean and smooth.
I always do a little cleanup with a fine ScotchBrite pad as well as taking a dental pick to each and every groove in both sides of he spline joint. Also a thin layer of grease on all surfaces. You want to make sure this stuff will come apart again later. |
worn |
Nov 13 2017, 09:23 AM
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#13
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can't remember Group: Members Posts: 3,127 Joined: 3-June 11 From: Madison, WI Member No.: 13,152 Region Association: Upper MidWest |
Has anyone experienced excessive play in a newly installed rear wheel bearing? During the restoration of my 72 I installed new bearings. The left rear has no play and the hub rotates smoothly. The right side seems to have excessive play and with the car on the lift I can wiggle the tire and wheel left and right about 1/8th of an inch. Thinking I might have damaged the bearing during install I ordered another one. Yes I bought decent quality from Pelican and not a made in china cheapie. Again I carefully pressed in the bearing feeling confident it was not damaged but once again the hub rocks while the other side doesn't. Thoughts? They wobble like crazy until the stub axle is tightened. Scared me to death when I did them. |
76-914 |
Nov 13 2017, 10:14 AM
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#14
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Repeat Offender & Resident Subaru Antagonist Group: Members Posts: 13,453 Joined: 23-January 09 From: Temecula, CA Member No.: 9,964 Region Association: Southern California |
I remember Cap'n Krusty saying that if you rolled the car around before tightening you could ruin them. (IMG:style_emoticons/default/confused24.gif)
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Dave_Darling |
Nov 13 2017, 10:27 AM
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#15
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914 Idiot Group: Members Posts: 14,974 Joined: 9-January 03 From: Silicon Valley / Kailua-Kona Member No.: 121 Region Association: Northern California |
I remember Cap'n Krusty saying that if you rolled the car around before tightening you could ruin them. (IMG:style_emoticons/default/confused24.gif) Yup, that's been known for a long time. They're usually OK for just sitting, and maybe for pushing across the shop once or twice, without the stub axle in and torqued. But if you're doing anything more than that, the stub has to be in there and it has to be torqued up properly. --DD |
mepstein |
Nov 13 2017, 12:00 PM
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#16
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914-6 GT in waiting Group: Members Posts: 19,142 Joined: 19-September 09 From: Landenberg, PA/Wilmington, DE Member No.: 10,825 Region Association: MidAtlantic Region |
always insert the stub and at least snug it down. even for rolling around the shop.
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jim_hoyland |
Nov 13 2017, 02:56 PM
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#17
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Get that VIN ? Group: Members Posts: 9,225 Joined: 1-May 03 From: Sunset Beach, CA Member No.: 643 Region Association: Southern California |
I had a new FAG bearing made in Slovakia or some place that had play in it. It wasn't loose in the bore the bearing center was loose in the race. I could move the wheel back and forth 1/4" and it made noise when driving. Replaced it with an ebay $15 bearing made in China and it has been fine ever since. There is this Boxster youtube..... said there was a batch of bad bearings and that they had very little grease in them form the factory. Same part # as 914 bearing. https://www.youtube.com/watch?v=-A5kf5pXl4w https://www.youtube.com/watch?v=l9P1R2clGAU Great videos ! I just replaced both rear bearings and now i’m Hearing one again. Is it too late too late to regrease the noisy bearing ? |
colingreene |
Nov 13 2017, 02:59 PM
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#18
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Senior Member Group: Members Posts: 729 Joined: 17-October 13 From: Southern California Member No.: 16,526 Region Association: Southern California |
Jim its a sealed bearing, i dont think you can re grease it.
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mepstein |
Nov 13 2017, 03:20 PM
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#19
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914-6 GT in waiting Group: Members Posts: 19,142 Joined: 19-September 09 From: Landenberg, PA/Wilmington, DE Member No.: 10,825 Region Association: MidAtlantic Region |
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Spoke |
Nov 13 2017, 03:34 PM
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#20
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Jerry Group: Members Posts: 6,964 Joined: 29-October 04 From: Allentown, PA Member No.: 3,031 Region Association: None |
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