Proportioning valves

Discussion in 'Technical' started by facelessnumber, Jul 7, 2009.

  1. captainmack

    captainmack Quad Door

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    Location:
    Marina del Rey, CA...on my boat
    Vehicle:
    1972 4 Door Comet, 200, C4 1970 Dodge Coronet 1975 Econoline 250
    I got the Granada discs installed and found a Fairlane 8" rear axle with 10" drums in new condition...my old rear drums were 9".
    I found;
    The drum/drum M/C has two 10lb. residual valves accesable just behind the flare fittings where you take the metal lines off.
    The disc/drum Raybestos MC36440 which is a manual disc drum master cylinder, for a '74 Maverick has a 10lb. residual valve for the back DRUM brakes in the front res. (which is for the back) and there is NO residual valve for the front discs (back end of the M/C). The residual valve for the discsa would be 2lbs, and are routinely sold, but only on cars where the master cylinder in at or lower than the disc calipers. So I am not going to ad a residual valve for the front discs.
    I am going to replace my drum/drum metering block(?) with either a new ford style combination distribution/proportioning/metering valve http://cgi.ebay.com/ebaymotors/1960...r_Truck_Parts_Accessories&hash=item2eb5ce9554 or a combination adjustable proportioning/distribution valve; http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=200617984159&ssPageName=STRK:MEWAX:IT
    I would love to know if they do the same thing or if the ford valve does something extra to make my road car safer.
    I found this post here that stopped me in my tracks from buying the adjustable one;

    "The Granada came with a combination valve...not a proportioning valve. The combination valve is a fluid distribution valve, proportioning valve, metering valve and pressure differential sensing valve. The combination valve works better than an adjustable proportioning valve in wet weather."

    Thanks everybody!!!
     
  2. robert a white

    robert a white New Member

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    glad to be a new member . I have always been a ford fan but found mustangs to be to common place. I now have a decent 1973 grabber I hope it is not a clone. due to winters in N.Y. I have no pictures to post yet. I am in the process of installing power brakes. still looking for shock tower brace and brake pedal if necessary
     
  3. robert a white

    robert a white New Member

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    thanks for the help, I am old school and not very compurter savy
     

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