Greetings all!
Are rising air bubbles in the brake MC (while applying pressure to the brake
pedal) a sure sign of a problems with the master cylinder? Or is it possible
that problems with the calipers could be generating these air bubbles and
sending them through to the MC?
I'm at wits end with this braking system!!!! When I bought the car, the front
calipers were locked up, one pad/rotor had gone metal to metal but the mc
seemed relatively firm. Replaced rotors, pads, flex hoses, rebuilt calipers,
bled the system for hours and hours, only to have the pedal hold firm for
about ten seconds and then quickly drop a couple of inches and then creep
slowly to the floor.
My biggest question, I guess, is if I damaged the calipers' bores/pistons
during reassembly (the fit was extremely tight and I had to use a straight bar
of steel across the pistons and then drive them in by hitting either side of
the bar with a hammer to set them in place.) Would I be looking at leaking
calipers, or is it possible that a very small distortion is drawing air in to
them, then distributing the air up to the MC where I see the bubbling when the
brakes are applied?
Any help would be greatly appreciated...this is my daily driver and I'm in
deep trouble!
Will
76 Triumph Spitfire
69 Triumph TR6C (whoo-hoo, a two wheeled Tri!)
79 MG Midget
59 Humber Super Snipe
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