Proportioning Valve 77 F150 & Weak Brakes
#46
Join Date: Oct 2001
Location: Jersey Shore Not Seaside!
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I would still change that valve just because.
Even with test vehicles that had fluid changed out regularly, occasionally we would still get a valve that would hang up on us after a few years of service.
Glazing is not a characteristic of light use as frequently thought of, it is from quick high heat events where the organics deep in the friction compound that haven't had the chance to normally carbonize in use vaporize and solidify on the running surface. I.E., if the rear brakes are not working, you have a better chance of glazing front brake pads then when everything is working normally.
Even with test vehicles that had fluid changed out regularly, occasionally we would still get a valve that would hang up on us after a few years of service.
Glazing is not a characteristic of light use as frequently thought of, it is from quick high heat events where the organics deep in the friction compound that haven't had the chance to normally carbonize in use vaporize and solidify on the running surface. I.E., if the rear brakes are not working, you have a better chance of glazing front brake pads then when everything is working normally.
#49
I now have brakes!!
Many thanks for this thread!! The Vac Booster plunger was adjusted too short by 1/4 inch on mine too. I adjusted it out and Yahhoo!!! now I can stop the dang thang!!
This Thread saved me many hours of frustration. Many thanks to posters, and Mad Scientist experimenters. You guys are wonderfully appreciated.
This Thread saved me many hours of frustration. Many thanks to posters, and Mad Scientist experimenters. You guys are wonderfully appreciated.
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