Braking mystery. A GHOST is applying my brakes!

[Mace]

still sound like adjustment IMO
screw the adjustment rod out aprox an inch and retest

You sure the sammy booster has an adjustment?


Okay, the next time it starts to happen, run around and feel the rims. it should be fairly obvious which one is creating the most heat..

start there..

 

[JohnnyC]

it should have an adjustment...


did you replace with the sami p-valve?

 

[Richard R]

I have no idea what is causing ite piston in the master cylinder not to return far enough but it must return far enough to uncover the return port. When the piston returns far enough to uncover this port it will bleed off any pressure in the lines. Have someone pump the brake for you. Look into the reservior and the fluid should boil back by being forced back by the springs on the shoes forcing the wheel cylinder pistons back into their cylinders when the pedal is released.