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Old 08-16-2002, 12:58 AM
Paul Paul is offline
Join Date: Feb 2000
Location: seattle, wa
Posts: 87
I've blown out many a master cylinder by depressing the caliper to fit the new pads in thus creating back pressure that can defunk the master cylinder. I always open the bleeder on the caliper while depressing. This saves me the hassle of explaining to the customer wy they need a new master cylinder when they came in for a routine pad change. If you close the bleeder while depressing just before you get to the end of the travel there's no need to bleed the system.
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