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brake rotor loose

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baghall Ben Hal Outlaw Bushranger

1,021 posts · joined Jan 2010 ·

#848220
This has now happened 3 times and is rather disconcerting. My left hand front rotor is coming loose. I have tightened it as far as is possible and tightened the lock bolt till I almost broke my allen key but it has come loose again. Took almost a month of daily driving but it still happened.
What am I doing wrong if anything and how can I fix it?
Am thinking of using a crown nut and drilling a hole through the stub axle.
What have others done?
68 Baja - It's a growing pain!
58 Baja ute - and the pain spreads!
85 T3 Kombi - still growing
89 T3 Kombi - parts car

Joel Now containing 100\% E-Wang

9,368 posts · joined Feb 2006 ·

#848221
Are you sure it's the spindle nut loosening off and not a wheel bearing slowly disintegrating?
That will cause play in the hub too cos unless the thread is dodgy on the spindle or the nut it's pretty rare they loosen once the allen bolt is locked down.

mackaymanx Custom Title Time!

1,611 posts · joined Jan 2006 ·

#848225
You may need to clearance the split in the nut, is there still a gap after you have tightened it down?

Maybe a new nut might solve the problem.
Quote of the week
"Do I wish to send them to you again, nope, no interest can't be bothered really, to much hassle for little or no return."

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baghall Ben Hal Outlaw Bushranger

1,021 posts · joined Jan 2010 ·

#848226
Joel wrote:Are you sure it's the spindle nut loosening off and not a wheel bearing slowly disintegrating?
That will cause play in the hub too cos unless the thread is dodgy on the spindle or the nut it's pretty rare they loosen once the allen bolt is locked down.
When I installed the new rotors there didn't seem to be any issues with the bearings and I thought that they were replaced under 12 months ago. Maybe I should check that!
68 Baja - It's a growing pain!
58 Baja ute - and the pain spreads!
85 T3 Kombi - still growing
89 T3 Kombi - parts car

vw54 Administrator Always Waiting 4 Friday

16,723 posts · joined Aug 2002 ·

#848264
are the bearings seated correctly

is the thread on the lock nut and spindle OK
I read it on FACEBOOK so it must be true


http://forums.aussieveedubbers.com/viewtopic.php?tid=91278&page=1#pid848630


http://forums.aussieveedubbers.com/viewtopic.php?tid=63561&page=1#pid624099


http://forums.aussieveedubbers.com/viewtopic.php?tid=4832&page=1#pid452603


http://forums.aussieveedubbers.com/viewtopic.php?tid=60650&page=1#pid574409

matberry Moderator Go hard or go home

8,114 posts · joined Mar 2006 ·

#848357
Do the bearings match the stubs correctly?

Check all dimensions.
Matt Berry Motorsports...air cooled advice, repairs and mods Ph 0408 704 662
OFF-ROAD,CIRCUIT,DRAG,STREET,ENDURANCE

baghall Ben Hal Outlaw Bushranger

1,021 posts · joined Jan 2010 ·

#848559
Threads are ok, nut was so tight I couldn't adjust it without loosening the locking bolt. Also after tightening the rotor rubs on the backing plate when cornering. So I am assuming that the wheel bearing is stuffed. WIll be buying some new ones tomorrow abd hopefully fit them after work.
68 Baja - It's a growing pain!
58 Baja ute - and the pain spreads!
85 T3 Kombi - still growing
89 T3 Kombi - parts car

matberry Moderator Go hard or go home

8,114 posts · joined Mar 2006 ·

#848562
Did you check the sizes. Wouldn't be the first time someone fitted the normal disc bearings to the one year only 68 stub that has a smaller dia. shaft at the inner bearing......
Matt Berry Motorsports...air cooled advice, repairs and mods Ph 0408 704 662
OFF-ROAD,CIRCUIT,DRAG,STREET,ENDURANCE

baghall Ben Hal Outlaw Bushranger

1,021 posts · joined Jan 2010 ·

#848687
Have just replaced the bearings this arvo. After tightening again I noticed a rubbing sound from the rotor and the backing plate. After pulling the rotor off there was slight scoring damage to the rotor and the backing plate. So I guess bearings were stuffed. Hopefully this fixes it.
68 Baja - It's a growing pain!
58 Baja ute - and the pain spreads!
85 T3 Kombi - still growing
89 T3 Kombi - parts car