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View Full Version : Master cylinder leak


Tony M
01-08-10, 02:38 PM
My master is leaking where it meets the brake servo, should there be some sort of gasket, o ring between them both?
mowgli
02-08-10, 09:25 AM
is it leaking fluid or vacuum?
bmw156
02-08-10, 10:08 AM
yeh there is a rubber seal. but it shouldnt leak out of there at all. i would say new MC time

also make sure its not leaking out of the plastic liquid holder. as mine was, and it makes it look like its coming out the back end.
Tony M
03-08-10, 12:08 PM
Sorry it is leaking fluid. I had replaced the o ring that fits over the push rod mechanism on the master cylinder. I dont know if that will cure it ...
mowgli
03-08-10, 12:18 PM
new master cylinders are quite cheap on the bay
Tony M
03-08-10, 07:12 PM
new master cylinders are quite cheap on the bay

So far so good at the moment, no fluid is leaking.