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Old 11-14-2020, 12:11 PM
andrewwynn's Avatar
Join Date: Jun 2015
Location: Racine, WI
Posts: 6,630
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AWR-fix: Front Wheel Bearing Remove & Replace

It wore me out. Took about 5 hours but I had at least an extra hour fighting two problems: seized bolts on the brake caliper and the axle was stuck in the hub.

Originally Posted by andrewwynn View Post
The Brake caliper bolts were seized to the point my high impact M18 wasn't knocking them loose. I didn't want to split my 16mm socket or snap off the bolt heads and if I can I don't use penetrating oil near brake parts. I ended up getting them loose with old timer impact: breaker bar and 4# hammer. Took 3-4 solid whacks but both finally broke free.

Then, for the first time in 9 or 10 times removing axle from hub it just refused to move. 5# slide hammer did nothing 4# mini sledge nothing. Finally used the spider from the hub removal tool, loosened up the lugs, snugged up the center rod on the spider and drove the lugs back in to pull the spider to the hub. That will generate more force than the 5/8 push rod is capable of so thankfully it took less force.

Not sure why I called the hub tool "spider" looks more like chicken foot. But the photo will help explain the trick.

I used a nut inside the "chicken foot" to help hold the 5/8" rod because the three lug bolts combined can easily develop more than 30-40,000#, far more than the fine thread on the 5/8" rod can handle.

It took more effort to pull the bearing apart to remove the hub I lost track of the whack count with the slide hammer but the last 10-15 hits I had my 4# hammer held against the slide hammer to give it more mass and apparently helped. I think because this bearing was only a couple years old maybe harder to pull apart.

I have a dust cap so next one I have to do this week I'll use the long bolts through the hub method if I can find some long m14 bolts.
E53 / M54 2001 3.0i gas LHD (pair of them: his & her)
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Old 11-14-2020, 03:54 PM
Join Date: Oct 2013
Location: on earth
Posts: 1,092
puddinboo is on a distinguished road
Sounds like you have a lot of patience lol.

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2003 bmw x5 3.0i ,219000km build date 2003-08-18
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