Reply to "Wilwood brake master cylinder failing?"

panterapattMember

From the mechanic's rulebook: air in the system never produces a "hard" pedal. A bad or leaking master cylinder can be "pumped up" but then gives it up and the pressure drops quickly and will never hold. My guess is it sitting for years with no fluid in it is a bad sign and probably why is was dry in the first place. You could try bench bleeding the MC first since it was bone dry to see it that helps.

5/10/245:07 PM

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