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Old 11-05-2007, 12:13 AM
BMM BMM is offline
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Residual Pressure Valve?

Hello. 1981 Monte Carlo Power Brakes, all factory. The brakes feel soft, almost mushy, but do effectivley stop the car. There is a fair amount of travel before the brakes actually begin to stop the car, and then work well.

There have been no signs of a leak, and the brakes never don't work. I've been wondering about residual pressure valves, and heard they maintain sufficient pressure to the brakes so they remain slightly engaged (not touching, obviously). Would these be the cure to the soft brakes?

Thank you.

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Old 11-05-2007, 05:24 AM
aka Duke of URL
 
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The rear circuit (drum brakes) already have a 10# residual valve in either the MC or combination valve.

Excessive pedal travel is usually contributed to-
  • Improperly adjusted rear drum brakes

  • Improperly adjusted MC pushrod

  • Swelling of brakes hose(s) on application

  • Internal leak in MC

  • Air in system
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Old 11-05-2007, 09:13 PM
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Alright, thank you.
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Old 11-07-2007, 07:17 PM
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Quote:
Originally Posted by KULTULZ
The rear circuit (drum brakes) already have a 10# residual valve in either the MC or combination valve.

Excessive pedal travel is usually contributed to-
  • Improperly adjusted rear drum brakes

  • Improperly adjusted MC pushrod

  • Swelling of brakes hose(s) on application

  • Internal leak in MC

  • Air in system
You forgot warped rotors, which will push the pads away from
the rotors giving you a long pedal...

K
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Old 11-07-2007, 10:25 PM
aka Duke of URL
 
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Quote:
Originally Posted by bates_k

You forgot warped rotors, which will push the pads away from
the rotors giving you a long pedal...

K
I did...
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