Re Residual Pressure Valve

[Bill Strobel <theamcguy@xxxxxxxxx>]

Larry.  If you added disc brakes to your car but did
not change the master then that is the problem.  Drum
brake systems use a 10 lb residual valve in the master
to keep the shoes nearer the drum.  If you swapped for
discs up front then the master is slightly holding
pressure out on the pads hence the dragging.  In a
disc setup the cut seal at the piston maintains enough
outward pressure to keep the pads near the disc.  You
can not just remove the residual valve as it is
machined into the master, you need to get the correct
disc/drum master for your application.  Check the TSM
circuit for the master and you should see the residual
valve.  Hope this helps,

Bill Strobel
Independent Towing
Fayetteville NC


		
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