Re: What's the deal with the residual pres. valve?

Posted by Paul (in NY) on Thursday, January 03, 2008 at 19:30:36 :

In Reply to: What's the deal with the residual pres. valve? posted by Howard in Newcastle on Thursday, January 03, 2008 at 17:48:03 :

The residual pres valve maintains 10 psi in the brake lines to drum brakes. This prevents the brake shoes from fully retracting and giving a low pedal. You want the 10 PSI residual Pressure valve. Its possible if you search, you may find a MC with a 1 & 5/16" bore with built in residual pressure valves.

Disk brakes do not use a residual pressure valve UNLESS the calipers are higher than the Master Cyl. Then they use a 2 or 3 psi valve.

I use the GM parts because they fit better in the conversions. Its much easier to find/marry the Chevy MC to a Chevy Vacuum booster or hydroboost than to figure out what Dodge Equipment to use. The Chevy equipment works well for me, I am pleased with its operation on my conversions.

Paul

• Restoration Alley

Follow Ups:

• Weellll.... - Chriscase @ San Diego 21:56:27 01/03/2008
  • I agree with Chris... - Ken Dunnington 10:32:31 01/04/2008
    • Re: I agree with Chris... - Paul (in NY) 11:56:07 01/04/2008
      • All the same, and all WRONG. - Chris Case @ San Diego 14:08:49 01/04/2008
        • Appears your right on the money - Paul (in NY) 16:22:06 01/04/2008
  • Link - Paul (in NY) 22:02:42 01/03/2008
    • Okay, you figure out the spring pressure, vs area of the piston. - Chriscase @ San Diego 22:20:20 01/03/2008
      • Re: Okay, you figure out the spring pressure, vs area of the pis - Paul (in NY) 23:40:30 01/03/2008
        • I've put enough sets of shoes on... - Chris Case @ San Diego 00:15:34 01/04/2008
      • Re: Okay, you figure out the spring pressure, vs area of the pis - Paul (in NY) 23:37:58 01/03/2008

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