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Old 04-27-2015, 11:48 AM   #11
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Join Date: Nov 2006
Location: Southern ID
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Quote:
Originally Posted by bwillia080261 View Post
I did the brakes on my 01S not too long ago. The car had come from back east and all four top Caliper bolts had buggered threads on the very end. And all four came out very slowly and with great difficultly. I had to then chase the threads, put some anti seize on them and re-install. Not sure why this happens to the top bolts. The bottom bolts all around were fine. The fronts were particularly bad and I had to go back and forth, back and forth all the way out and was convinced they were going to break any second. What an incredible pain in the A## that was.
Yep, the top bolts terminate into a little well that has no drainage. It captures moisture and road salt over time which works into the threads causing galvanic corrosion. A small drain hole or simply filling the well with silicone after installation might help solve this. The bottom bolts gravity drain so not nearly such a problem. I always use a high temp thread lube on caliper bolts to help with removal next time.
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