Originally Posted by jreiley
I thought the residual valve on drum brakes was to prevent fluid drain down. In other words, if I was told correctly, if that valve is not there, the first time you kit the brake pedal, the pedal wll go to the floor. 2nd time is ok.
yep....that's what they say. On my NOVA that isn't the case, but that is what it's for. I do have an adjustable proportioning valve so maybe that's got something to do with it.