Proportioning valve - Chevelle Tech
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post #1 of 6 (permalink) Old Apr 15th, 19, 1:19 PM Thread Starter
 
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Proportioning valve

Hey guys, I recently bought a brake line set from Right Stuff. It included a new proportioning valve. Iíve also seen it called a combination valve. The instructions show it mounted on the master cylinder where the old metering valve was. Does this new valve replace the old proportioning valve mounted on the frame and the metering valve on the master? Thanks in advance
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post #2 of 6 (permalink) Old Apr 15th, 19, 3:17 PM
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Re: Proportioning valve

What year car? It will make a difference on where an how the valve gets mounted.

1972 Chevelle SS 454 "W" code
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post #3 of 6 (permalink) Old Apr 15th, 19, 6:00 PM Thread Starter
 
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Re: Proportioning valve

Sorry. Itís a 1969 Chevelle
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post #4 of 6 (permalink) Old Apr 15th, 19, 8:09 PM
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Bruce
 
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Re: Proportioning valve

Quote:
Originally Posted by Dflores View Post
Does this new valve replace the old proportioning valve mounted on the frame and the metering valve on the master?
How important is originality to you? I bought a rear disc brake set up and got a Disc/Disc Proportioning Valve (D/DPValve. The new D/DPValve is somewhat different from the factory Combination Valve (CValve) since it adds a necessary proportioning aspect to the brake system to prevent premature lock up of the rear brakes) The D/DPValve looks almost identical to the factory CValve that mounted to the frame, so I mounted the new D/DPValve in place of the old CValve (I got frame bracket from InLine Tube to facilitate the mounting). The result is no one knows the Brake setup has been altered, because the D/DPValve is "hidden."

IMHO I think it looks much better to have the PValve on the frame than having the D/DPValve up by the M/S.

If originality is of no concern you can mount your new PValve up by the Master Cylinder. However, I believe that additional brake lines will be needed to do so...

So, I'd answer your question with "Yes."

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post #5 of 6 (permalink) Old Apr 16th, 19, 8:47 AM
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Jeff
 
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Re: Proportioning valve

The front disc rear drum brake system has two valves.

-The metering valve goes on the front line and prevents nose dive during panic stops.
https://www.google.com/search?

biw=1093&bih=521&tbm=isch&sa=1&ei=k821XNi2NaKRggf6 5pPYDw&q=metering+valve+master+power&oq=metering+v alve+master+power&gs_l=img.3...14802.17331..17879. ..0.0..0.80.787.12......0....1..gws-wiz-img.......0i8i30.Z9IzFQr030M#imgrc=QQbQjFsP9a8-KM:

-The Proportion valve goes on the rear line and prevents rear wheel lock up during stops.. I prefer the adjustable style...

https://www.summitracing.com/parts/s...SABEgK-__D_BwE
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post #6 of 6 (permalink) Old Apr 16th, 19, 11:09 AM Thread Starter
 
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Re: Proportioning valve

Thanks for the fast responses and good information. Most appreciated!
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