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Need help... calipers leaking

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Old May 17, 2017 | 04:39 PM
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Default Need help... calipers leaking

Recently got my car back after having calipers disassembled, powder coated, and rebuilt. Now the calipers are leaking enough to see residue with specifically the front left side dripping (per the pic).

I trust the shop shop who did the work but unfortunately now the powder coating/rebuild process needs to be redone. The shop is very busy with a number of exotics and they have never encountered such a problem. The concern is why this happened so we are not in the same situation again. The only thing unusual during the process was that the nipples needed to be replaced because they were corroded and one broke in the initial modification process.

The nuts were checked and all were noted to be tight thereby excluding "looseness" as a culprit.

Anyone with suggestions?

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Old May 17, 2017 | 05:27 PM
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Someone did a very sloppy job bleeding the brakes. If there is liquid actively dripping then something is wrong with the bleeder screw.
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Old May 17, 2017 | 05:40 PM
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I have never seen brake fluid show up as a white residue.
Is it white because it removed paint? Is it still wet, or dry?
Have you already tried cleaning it off good, and seeing if it comes back?

Are you sure something didn't just get splashed onto the caliper? Tire dressing, wax, .... ?

Last edited by TEXHAWK0; May 17, 2017 at 05:43 PM.
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Old May 17, 2017 | 05:44 PM
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Originally Posted by TEXHAWK0
I have never seen brake fluid show up as a white residue.
Are you sure something didn't just get splashed onto the caliper? Tire dressing, wax, .... ?
Can't exclude it but I don't suspect such. All 4 calipers had similar residue. I provided the picture of the front left as it was the worst.

Possible brake fluid issue?
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Old May 17, 2017 | 06:02 PM
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hoki, I'm not discounting your description, but something looks odd. I've never seen a leak that would splash up to the top of a caliper like that. And, as TEXHAWK said I haven't ever seen brake fluid bleed out white. Could the shop have screwed something up putting them back together? I'm sure they are very reliable, but things happen. We're all human after all. Good luck.
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Old May 17, 2017 | 11:36 PM
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Brake fluid is incredibly corrosive to paint. When they bled the calipers, they left the excess fluid on the paint and it caused discoloration on your newly detailed calipers. Always be very careful with brake fluid near paint.

Last edited by vbdenny; May 17, 2017 at 11:36 PM. Reason: Sp
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