Posted by Paul (in NY) on Wednesday, January 24, 2007 at 22:05:12 :
In Reply to: Re: Power boosted brakes posted by Tim Holloway on Wednesday, January 24, 2007 at 21:38:30 :
A residual pressure valve with a 10 pound rating is used on drum brakes. This keeps 10 psi on the system. This keeps the shoes from totally retracting and causing a low pedal. When the shoes are totally retracted it takes more fluid movement to push them into contact with the drums.
Click on the link below
Paul
Follow Ups: