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brake gimpiness part II, 3 more bleeds, minimal results 200 1986

posted by  someone claiming to be Rhys on  Sun Feb 1 12:33 CST 2004 [RELATED]

Here is another idea. If the pedal was spongy before the master was replaced, and now fully bled, remains spongy, then maybe it isn't air or the master.
Many years ago a siezed rear caliper drove me crazy. Low pedal, spongy, no air, confirmed good master. Now what. I looked at the rear calipers while someone applied the brake. If one piston siezes, then the moving piston distorts the rotor and bends it towards the stuck one and takes up the clearance. As the "anvil" pad wears, the rotor gets further away from it, and the moving piston must bend the rotor further and further to make contact. Spongy pedal. If you can see movement of the pads or the rotor when the brakes are applied, that is too much. Check for a stuck piston in the rear Ate calipers. I have seen them do this many times now. Just a thought.






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