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Is my brake master cylinder shot??? 200 1987

posted by  Goldy on  Tue Sep 9 06:19 CST 2003
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I have just completed replacing all the brake lines and the brake hoses.

Bleeding has been down 3 times - the honey gold fluid is gone - all is running clear - no air.

When I depress the brake pedal (engine off) the pedal does not feel as if it is coming to a solid "stop."

With the engine running - the pedal sinks further, but stops before it reaches the firewall, however it is very mushy.

The BIG thing - when I press the brake pedal, and observe the fluid reservoir, the rear compartment has fluid rushing up into it - as if "backwashing."

Are the piston o-rings shot???

I was careful to set up a stop block on the pedal while bleeding - so as not to rip out the O-rings......

Is the fluid supposed to wash back up into the reservoir on the push stroke???

Thanks in advance for any help and opinions..





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