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-   -   hex bolt holding on rotor stuck (http://www.bimmerfest.com/forums/showthread.php?t=670315)

djchasman 01-15-2013 05:30 PM

hex bolt holding on rotor stuck
 
Hey all. I am trying to change out the rear bearing on my 325 and the hex bolt holding on the rotor is not budging. Any ideas on getting it off without damaging. Thanks all.

bluebee 01-15-2013 07:47 PM

I typed /rotor F3 in the bestlinks and came up with this which may help:
- How to remove stuck rusted-on brake rotors (1) & how to remove a stuck 6mm brake rotor set screw (1)

smolck 01-16-2013 07:32 AM

Quote:

Originally Posted by djchasman (Post 7316126)
Hey all. I am trying to change out the rear bearing on my 325 and the hex bolt holding on the rotor is not budging. Any ideas on getting it off without damaging. Thanks all.

Squirt it with PB blaster and let soak for 30 min or so. Then insert your hex socket into the bolt and pound the end of it with a big hammer a few times. Then turn, then hit it with a hammer again, and turn and so forth. Should break loose. If you have access to an impact wrench, set it to the low setting and try zapping it a few times with that.

Regardless of the method, the PB blaster soak makes all the difference!

hitbyastick 01-16-2013 01:02 PM

FYI if anyone ever has the chance to get their hands on some Kroil do it. Soaking with that magical substance has enabled me to get away with not using a blowtorch more times than I can remember. It's expensive and hard to come by but worth it.

Jimmys 530i 01-16-2013 04:42 PM

Quote:

Originally Posted by smolck (Post 7317350)
Squirt it with PB blaster and let soak for 30 min or so. Then insert your hex socket into the bolt and pound the end of it with a big hammer a few times. Then turn, then hit it with a hammer again, and turn and so forth. Should break loose. If you have access to an impact wrench, set it to the low setting and try zapping it a few times with that.

Regardless of the method, the PB blaster soak makes all the difference!

The PB blaster is a must. I put the 6mm allen on an impact driver, whack it once, and it comes right out. I have this type Snap-On

GoForthFast 01-16-2013 10:03 PM

And keep in mind if you break it off, it is a 'convenience' item. You can run without it with no problem. The wheel bolts are really what holds the rotor in place.


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