Shorten the master cylinder push rod, until the piston can move back far enough to clear the bleed hole in the bottom of the resevour. If the rod is too long, exactly what you describe happens. There should be a small fountian of brake fluid in the master when the pedal is pushed. Pressure in the master needs somewhere to go when the pedal is released, the bleed hole provides that and allows fluid into the master to compensate for shoe wear.


Mac :{)

1962 K10 short step side, much modified for rally
1969 T50 fire truck, almost nos, needs a few things