Topic: Brake pedal travel: Residual Pressure Valve to the rescue?
Our Mustang II still proudly wears rear drum brakes but over the course of a day we have to pump them every time. At the end of the day we can adjust them and they'll be ready for the next day, but only for a while. Eventually we have to pump, pump, brake! Its bad enough that for days after a race I'll pump the brakes on my daily driver out of habit.
Rather than adjusting them midday (or braking in reverse around the paddock to auto-adjust), can I limit the pedal travel by installing a residual pressure valve on the rear circuit? I read online that most master cylinders have one built-in, but ours is newish and I'd assume it kinda/might/maybe has one if it's supposed to be there.
I think I understand how they work, but is this the right approach? Will a 10lb RPV solve the problem or just make my shoes drag and wear? Will it lead to the wheel cylinders getting over-extended and blowing out?
We will not compromise our morals and build anything but a class C car.
"You take the high road, we'll take the low."