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master cylinder only half working 1800 1972

posted by  planetman on  Sat Apr 27 16:06 CST 2019
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last visit: Fri Oct 24 09:29 CST 2014
[RELATED]

Not that it would affect the bleeding, but it is recommended to remove the brake warning switch in the distribution block that the 2 brake lines from the master cylinder go directly to. If you don't removed the switch, you can damage the switch while bleeding the brakes.

There are brake pressure limiters(proportioning valves) for the 2 rear calipers mounted under the car and the 2 brake flex lines screw directly into them.

The proportioning valves can be stuck or clogged and/or the rear brake hoses could be bad, both of which can cause bleeding problems.
--
Eric
Hi Performance Automotive Service (formerly OVO or Old Volvos Only)
Torrance, CA 90502
hiperformanceautoservice.com or oldvolvosonly.com






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