richard said:
I have a 1987 honda civic wagovan 4wd. The master cylinder ran dry when
car was sitting for a few years. Anyways I replaced master cylinder and
pressure bled the system and the peddle still feels mushy. The brake
booster seems to pass its test according to manual. Would appreciate any
help about getting air out of system.
For the master cylinder to have been the culprit and leaked, all of the
brake fluid from the reservoir would likely wind up in the brake booster.
If this was indeed the case, then the booster should be replaced. However,
this scenario, though not impossible, seems unlikely since you've tested the
brake booster. I would suspect that you may have leaking rear wheel
cylinders which would explain the loss of brake fluid. Have you inspected
all of the brakes? Note that it's often necessary to pull back the the dust
boots on the wheel cylinders to find leaks though I suspect since the volume
of fluid loss was so great it should be easy to locate.
Also note that it's best to bench bleed a master cylinder before putting it
on the car to help insure that you get all of the air out. Did you do
this? If not, then you'll need to keep bleeding the system until your
certain that all of the air is out but only after you've verified the source
of the initial leak.
Eric
