The Stovebolt Site Forums The Shop Area General Truck Talk bleeding brakes, double reservoir

i have a 52 3800, which has a 67 master cyl down were the single was on the floor, all new lines etc,having a problem getting any pressure out of the front res,when i disconnect the line at the mc and push down i get nothing when i push down as fast as i can i get fluid, any advice,thanks trying

Pressure bleeding should fix it. Put about 10 pounds air pressure on the top of the master cylinder and crack the right front wheel cylinder.

Did you bench-bleed the master cylinder? I've had that problem in the past, and it was because I didn't bench-bleed the master.

Tapping on the housing lightly with a small ball-pein hammer helps get the bubbles out while bench bleeding.

-Brad

i am really missing something, i took the mc out and bench blead it as instructed, still no pedal, no obvious leaks,would like to thro in a few @####$&^%, but know that would not help, anymore advice thanks trying

Do you still have an extra cover for the master cylinder. If so, drill a hole in it and put a tubeless valve stem in the hole and then put about 10psi air to it and crack one wheel cylinder at a time beginning with the fartherest from the master cylinder.