Wheel bearings...
Submitted: Wednesday, Aug 25, 2010 at 18:18
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townsville
hzj75 troopy......seems like the back bearings have loosend again! bit of movement when you pull the tyre back and
forth.....not much..but a bit.
replaced 12 months ago with new ones....question..how can they come loose?? they are locked in with tabs???
This is the second time this has happend in 12 months...no off road work in that time all.. done on the blacktop
any ideas??
'thaks in advance'
darrell
Reply By: blue one - Wednesday, Aug 25, 2010 at 19:23
Wednesday, Aug 25, 2010 at 19:23
Sounds like they are just bedding in. Nip them up and monitor the wear.
Cheers
AnswerID:
428438
Reply By: gjcumming - Wednesday, Aug 25, 2010 at 19:43
Wednesday, Aug 25, 2010 at 19:43
Hello Darrell.
Are you the one owner? My HZJ75RV failed a RR bearing which spun in the housing. The new set is prone to movement over time. New axle housing or close watch on the bearing is where I'm at.
Regards: Grant
AnswerID:
428441
Follow Up By: 3GoBush - Thursday, Aug 26, 2010 at 08:03
Thursday, Aug 26, 2010 at 08:03
gjcumming
There is a simple fix for your problem.
Take the hubs off, then with a center punch and a hammer, put about 6 punch marks around were the bearings sit, this will hold the bearings to the hub you could also use some bearing retainer, you could find that through
Loctite
FollowupID:
699180
Follow Up By: Member - Christopher P (NSW) - Thursday, Aug 26, 2010 at 09:37
Thursday, Aug 26, 2010 at 09:37
If you go to your local engineering suppply place and tell them your problem, they should giuve you a gray tube of loctite 506, i think it is called, had the same problem with the front left drive wheel on my daewoo lanos, use to come loose after 12 months, at one stage i was replacing wheel bearings evry 12 months, i put some of that on and it fixed the problem. All the
grey stuff does is take up the thin space between bearing and carrier, to eliminate and load/ stresses from not being machined or seated properly. I would leave the tube in your tool box for next time you need it.. You don't ned much but hey its like it has being welded after.
FollowupID:
699187
Follow Up By: gjcumming - Thursday, Aug 26, 2010 at 18:29
Thursday, Aug 26, 2010 at 18:29
Thanks very much for the advice 3GoBush & Christopher P.
Regards: Grant
FollowupID:
699224
Reply By: splits - Wednesday, Aug 25, 2010 at 20:39
Wednesday, Aug 25, 2010 at 20:39
Darrell
Did you replace the bearings with nut tension and bearing preload set to the manufacturer's specifications? If not, and there was insufficient preload, then that could be the problem.
Too much preload can cause early wear and free play when you move the wheel. Too little can create freeplay as the bearings settle in. If the preload is set a little towards the upper limit of the specifications, the bearings can settle in without coming loose. This is particularly important with new bearings.
AnswerID:
428452
Reply By: Member - Phil G (SA) - Wednesday, Aug 25, 2010 at 23:17
Wednesday, Aug 25, 2010 at 23:17
Like splits said, a bit of play is common after rear bearing replacement. After a few thousand k's I remove both rear axle shafts, check for play and re-adjust the bearings. Most times I find some play has developed. On one of the Terrain Tamer videos on Youtube explains it - but I don't use a sledgehammer :-)
AnswerID:
428471
Follow Up By: Cruiser 2091 - Thursday, Aug 26, 2010 at 07:06
Thursday, Aug 26, 2010 at 07:06
That video is an excellent example of why we have to be so careful when choosing a Mechanic.
Manufacturers recommend seating a bearing by overtightening to a specified preload and then backing off and resetting to the normal preload. This way the bearing is seated by pressing it in with pressure as opposed the this butchers "shock treatment"
What's even worse is that he is teaching others to use this rough and incorrect method.
Unfortunately there are many of these types of methods out there and even more ......
well lets say people who swear by them.
FollowupID:
699177
Follow Up By: Member - Christopher P (NSW) - Thursday, Aug 26, 2010 at 19:09
Thursday, Aug 26, 2010 at 19:09
yeah, you spin it 5 times left then 5 times right, then loosen, spin 5 left, then 5 right, then retension, , go for a drive and then after 500 kays retension. is roughly the advice io got from my mechanic, and he's being in the game for 36 years, worked on everything.
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699228