I am in the final phase of completing my brakes (56 3/4 ton). EVERYTHING is new except a rebuilt master cyl.

No leaks, but sadly not much pressure either. I have done all the brake, 2 person, pump the pedal, bleed the brake, items etc.
I dont really get any gravity bleed at the rear wheels.

So heres my question before I bite the bullet and figure the master cylinder rebuild didnt work, and I lose my built up pressure here.

Is is possible since I have not adjusted the brake shoes to the wheels yet through the slot in the rear of the wheels, could the new wheel cylinders pistons be pressed out to far in the wheel cylinders and this is where I am losing air pressure?

I am really confused becuase I do not see fluid anywhere. I am thinking w/ any pressure at all, I would eventually lose fluid too. Wondered about the master cylinder cap too, with that little bit of air, maybe it leaks here???
Thanks you any advise.

I never build enough pressure at the farthest wheel to quirt fluid. the front cylinders shoot 2 feet!

Last edited by 56 stepside; 02/16/2009 2:08 AM.

56 stepside 3/4 ton longbed