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      05-08-2009, 08:20 AM   #31
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Drives: E30 M3; Expedition
Join Date: Apr 2007
Location: USA

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Originally Posted by Gearhead999s View Post
The pump was activated by the brake light switch,so if the brake lights were on the pump was working and water was being sprayed.We did not have access to I/R heat probes at that time so it was a guess at best.We tried using the temp paints that the pro teams used but the highest temp paint burned offmelted caliper seals was the norm for us and so was the piston pushed through the backing plate.
OK. So it was spraying during breaking. I missed that. Yeah, I guess the water is vaporized right away then...
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