jacob80 Posted May 30, 2009 Share Posted May 30, 2009 Hey guys, recently, the brakes on our '72 have been pretty bad. One day I took a look and the fluid was low. I attempted to bleed the brakes only to discover that fluid was spitting out between the master cylinder and brake booster. Upon further inspection, the paint below has all bubbled and a little rust has started as a result. To fix this, is there just a gasket between the two, or do we need a new master cylinder all together? I've read that the 81-83 zx master cylinders are an upgrade? Just let me know guys, thank you! Quote Link to comment Share on other sites More sharing options...
RB26powered74zcar Posted May 30, 2009 Share Posted May 30, 2009 Sounds to me like you do indeed need a new MC. There is no reason, other than the seals leaking from the rear, that fluid should be between the two parts. The MC upgrade is commonly used when the brakes are upgraded to larger piston size. Not sure how much of a upgrade it is for stock brake system... Quote Link to comment Share on other sites More sharing options...
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