Brake booster full of brake fluild

[byfdinky]

Hello All,

Having a brake issue. Having always to put brake fluid in the reservoir, and after checking for brake fluid around the outside of the unit and at all wheel cylinders and coming up nil, I pulled the Brake Booster/ Master Cylinder out and found I have quite a bit of brake fluid in the booster. Any idea what could be causing this?
The Master Cylinder does have an O ring on it. It is rather hard to see.

Many thanks,

Bill


1979 911 Targa

[john walker's workshop]

bad master cylinder. water flushes the brake fluid pretty well.

[Peter Zimmermann]

Originally Posted by john walker's workshop

bad master cylinder. water flushes the brake fluid pretty well.

Yep. Use a turkey baster, preferably one that won't see any future kitchen duty, to suck as much of the brake fluid as possible from the booster and the reservoir. Don't drip any on your paint! Clean and dry the area as carefully as possible limiting fluid spread to the smallest area. Remove master & booster and clean the area thoroughly.