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Advice on how to remove stuck caliper bolts?

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Old 07-12-2009, 03:42 PM
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No longer stock '06 E55, A3 3.2 Quattro, LRD4 HSE, R107 280SL
Advice on how to remove stuck caliper bolts?

Tried to replace rear discs and the tech broke a socket on the torx bolts and could not remove the rear calipers any suggestions on how to get them out!!???
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Old 07-12-2009, 03:51 PM
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My tech had the same problem with rear calipers, he ended up breaking a one socket and 2 extension before getting it off. He ended up spraying it with some wd-40 or something similar and letting it sit while he finished up the other ones. Hopefully you have it on a lift as I'm sure it will help...good luck!
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Old 07-12-2009, 09:44 PM
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2005 S55 1982 300dt
Heat the bolts enough to soften the threadlock.
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Old 07-12-2009, 09:52 PM
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Nissan GT-R cobb/midpipe/ic piping/wastegate actuators/tials
Yes..heat. Although any tech worth his money should know this.
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Old 07-12-2009, 09:53 PM
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Originally Posted by reitmeid View Post
Heat the bolts enough to soften the threadlock.
Eh... You could do that but I would just use some kind of penetrating spray; Seafoam Deep Creep, or WD-40 or PB Blaster or anything similar. Let it sit for a few then it should break loose.
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Old 07-13-2009, 09:53 AM
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i would spray liquid wrench first and bang with a heavy hammer or the equivalent second to break the rust/corrosion. heating is secondary and always last resort, becasue i have seen instances where torching has expanded thread that bolts go in to.
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Old 07-13-2009, 01:23 PM
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I didn't mean to heat it red hot- just hot enough to break the loctite...
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Old 07-13-2009, 01:40 PM
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Originally Posted by itsmeek View Post
I didn't mean to heat it red hot- just hot enough to break the loctite...
Hope I did'nt criticize your method(as it was def. not my intention), dont get me wrong I have heated alot of times before, but I Feel its kinda a last option thing....
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Old 07-13-2009, 01:45 PM
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NO no bro, it's all good and you're right. My usual route would be:

try to open it.
bang on it to loosen rust/loctite
spray it
bang on it
heat it, as a last resort..
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Old 07-13-2009, 01:54 PM
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Originally Posted by itsmeek View Post
NO no bro, it's all good and you're right. My usual route would be:

try to open it.
bang on it to loosen rust/loctite
spray it
bang on it
heat it, as a last resort..

AGREED
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