Hydroboost Question

[Sandrat]

I just starting driving my Blazer with the stock diesel hydroboost system. After a few test drives I have brake fluid leaking out the top of the master cylinder cap and dripping down the sides.

Here is my setup:

1 ton master cylinder
ORD rear dik brake kit
Stock proportioning valve.
Dana 60 14 bolt axles.

Any Ideas???

 

[Drey]

check the rubber under your cap and make sure it has a good seal