Residual Pressure Valve 10LB For Drum Brakes Red Anodized 1965-1973

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Residual Pressure Valve 10LB For Drum Brakes Red Anodized 1965-1973

Product Description

10lb. Residual Pressure Valve for 1965-1973 Mustangs with Drum Brakes.

These valves are used in a drum brake system to prevent air from being ingested into the hydraulic system when you release the brake pedal. Typical wheel cylinder seals only seal when there is pressure behind them. Rapid release of the brake pedal creates a vacuum in the system which causes the seals to relax and air is ingested into the wheel cylinders. Maintaining 10 PSI in the system at all times prevents this.
 

Mustang Applications

This product will fit the following Ford Mustang years:

Product Reviews

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Residual Pressure Valve 10LB For Drum Brakes Red Anodized 1965-1973 is rated 3.0 out of 5 by 1.
Rated 3 out of 5 by from wrong function description Actually the purpose of the RPV is not to prevent air from being sucked into the system, but to maintain 10 lbs of pressure, to the rear wheel cylinders. The reason for this is because the rear shoes are retracted by springs. The 10 lb residual pressure keeps the shoes in just enough contact, with the drums, so that the shoes do not have to travel as much, for proper braking to occur.
Date published: 2015-04-14
  • 2015-05-26T10:29CST
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