MASTER CYLINDER WAS LEAKING FLUID INTO BOOSTER

1983 Volkswagen GTI

Tiny

davidgti

October, 25, 2012 AT 5:18 AM

Master cylinder was leaking fluid into booster. I fitted new master cylinder and drained the brake fluid from the booster. With the new master cylinder fitted the brakes lock on badly after a few applications. If I disconnect the vacum hose (I have block off the hose) the brakes release but I have no assistance. Is there any option other than replacing the booster.

3 Answers

Tiny

Dr. Hagerty

October, 25, 2012 AT 5:21 AM

Rebuilding the booster would be an option, it might be just as costly though. The brake fluid has damaged the booster and replacement is probably the only solution for this issue.

Tiny

exovcds

October, 28, 2012 AT 5:47 AM

Do you have the correct amount of free-play in the brake pedal?

If the pistons in the master cylinder are not able to return fully, pressure will build-up in the lines because fluid can not return into the reservoir.

Adjust the booster rod "tip" that pushes against the master cylinder to get the correct amount of free play.

Thomas

Tiny

Dr. Hagerty

January, 2, 2013 AT 10:39 PM

.

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