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Pressure valve location?

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Old 03-28-2010, 11:19 PM
flipklos flipklos is offline
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Pressure valve location?

Were does one locate the residual pressure vlave in a drum brake setup? Is it before or after the proportioning valve?
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Old 03-29-2010, 07:11 AM
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If used it is part of the combination (Proportionining, metering) valve
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Old 03-29-2010, 06:01 PM
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On the master cylinder side or on the brake side of the proportioning valve?
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Old 03-30-2010, 07:11 AM
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not sure but I think they are only used when the mc is lower than the wheel cyl's
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Old 03-30-2010, 11:02 AM
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Quote:
Originally Posted by flipklos View Post
On the master cylinder side or on the brake side of the proportioning valve?
It is part of that valve- not before or after. Are you having brake drag issues? A more likely cause is a bad rear brake hose.
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Old 03-30-2010, 08:13 PM
flipklos flipklos is offline
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Intending to install a dual circuit disc conversion on my 64 F100. I realise you only need a residual valve on the discs if the master is lower. On drum brakes however you need to utalize a 10 psi valve to prevent air infiltration and brake drag. I know you need one as my 85 has an aftermarket proportioning valve due to my original going out. I suffer bleed back in the drums and one has to pump them several times to restore the drums to use.

I am simply curious to which side of the proportioning vlave one mounts the residual valve.
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