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    #1

    Brake system specifications

    I've been collecting brake system information for my own research purposes, and I figured I'd share them here. This is a closed post, but if you have information that you feel belongs here, please post it in a new thread, and it will be merged in if appropriate. I would like to limit information to known reliable sources, preferably factory shop manuals, but manufacturer specs from reliable sources are also good.


    First post, the box brake system. All scans are from the 1986 Body Chassis Electrical manual for Crown VIc, Grand Marq and Towncar. Included are disc brake specs, drum brake specs, information about the valving present in the system, and the proportioning information for the frame mounted valve.
    Attached Files
    Last edited by gadget73; 02-06-2010, 07:28 PM.
    86 Lincoln Town Car (Galactica).
    5.0 HO, CompCams XE258,Scorpion 1.72 roller rockers, 3.55 K code rear, tow package, BHPerformance ported E7 heads, Tmoss Explorer intake, 65mm throttle body, Hedman 1 5/8" headers, 2.5" dual exhaust, ASP underdrive pulley

    91 Lincoln Mark VII LSC grandpa spec white and cranberry

    1984 Lincoln Continental TurboDiesel - rolls coal

    Originally posted by phayzer5
    I drive a Lincoln. I can't be bothered to shift like the peasants and rabble rousers
    Tags: 1987cp can't read, brake, caliper, disc, drum, master cylinder, wheel cylinder
    • Stuck
    #2
    1990s master cylinder and proportioning valve data along with a picture of a 90s master cylinder with the prop valve threaded in. Also, a disassembled 1970s Ford truck combination valve. This is not identical to what exists on the Panther up to 1995, but the basic design is very similar. It is included here for references. The parts marked are as follows:

    A- Proportioning Valve: Reduces fluid pressure to rear brakes
    B- Metering Valve: Holds off pressure to front discs until slower rear drums can react
    C- Bleeder Rod: Must be pulled out when bleeding factory brakes (panther ones push in)
    D- Brake Light Warning Switch
    E- Pressure Differential Valve: Senses pressure imbalance
    Attached Files
    Last edited by gadget73; 02-06-2010, 07:08 PM.
    86 Lincoln Town Car (Galactica).
    5.0 HO, CompCams XE258,Scorpion 1.72 roller rockers, 3.55 K code rear, tow package, BHPerformance ported E7 heads, Tmoss Explorer intake, 65mm throttle body, Hedman 1 5/8" headers, 2.5" dual exhaust, ASP underdrive pulley

    91 Lincoln Mark VII LSC grandpa spec white and cranberry

    1984 Lincoln Continental TurboDiesel - rolls coal

    Originally posted by phayzer5
    I drive a Lincoln. I can't be bothered to shift like the peasants and rabble rousers

    Comment

      #3
      Brake booster data, pics attached. Data courtesy 2vmodular from p71interceptor.com :

      1979-1987 crownvic
      Part Number 54-74200
      Diaphragm Type Single Diaphragm
      Diaphram Diameter 11 1/2


      1988-1991 crownvic except police
      Part Number Cardone 54-74214
      Diaphragm Type Single Diaphragm
      Diaphram Diameter 11 1/2

      1988-1991 crownvic with police and station wagon
      Part Number 54-74213
      Diaphragm Type Single Diaphragm
      Diaphram Diameter 11 1/2

      1995-2000 booster
      Part Number Cardone 54-73197
      Diaphragm Type Dual Diaphragm
      Diaphram Diameter 8 3/4
      Attached Files
      Last edited by gadget73; 02-06-2010, 06:56 PM.
      86 Lincoln Town Car (Galactica).
      5.0 HO, CompCams XE258,Scorpion 1.72 roller rockers, 3.55 K code rear, tow package, BHPerformance ported E7 heads, Tmoss Explorer intake, 65mm throttle body, Hedman 1 5/8" headers, 2.5" dual exhaust, ASP underdrive pulley

      91 Lincoln Mark VII LSC grandpa spec white and cranberry

      1984 Lincoln Continental TurboDiesel - rolls coal

      Originally posted by phayzer5
      I drive a Lincoln. I can't be bothered to shift like the peasants and rabble rousers

      Comment

        #4
        Front rotor data, 1995-97 and 98-02 Info courtesy 2vmodular of p71interceptor.com

        also included for comparison's sake, the box front rotor data. 92-94 front rotors should be the same diameter, but they use a seperate hub bearing assembly instead of the integral hub that boxes use. No repacking of bearings on 92+ models.
        Attached Files
        86 Lincoln Town Car (Galactica).
        5.0 HO, CompCams XE258,Scorpion 1.72 roller rockers, 3.55 K code rear, tow package, BHPerformance ported E7 heads, Tmoss Explorer intake, 65mm throttle body, Hedman 1 5/8" headers, 2.5" dual exhaust, ASP underdrive pulley

        91 Lincoln Mark VII LSC grandpa spec white and cranberry

        1984 Lincoln Continental TurboDiesel - rolls coal

        Originally posted by phayzer5
        I drive a Lincoln. I can't be bothered to shift like the peasants and rabble rousers

        Comment

          #5
          1994 rear caliper data, rockauto crosses this 1992-1995

          Bore Size=1.885" Inlet Thread=M10X1.5 Bleeder Thread=3/8X24

          1996 rear caliper data, crosses 1995-2002

          Bore Size=1.88" Inlet Thread=M10X1.5 Bleeder Thread=3/8X24

          1994 front caliper data, crosses 1990-1994

          Bore Size=2.875" Inlet Thread=M10X1.5 Bleeder Thread=3/8X24

          1996 front caliper data, crosses 1995-1997

          Bore Size=2.6" Inlet Thread=M10X1.5 Bleeder Thread=3/8X24

          1998 front caliper data, crosses 1998-2002. Note this is a dual piston caliper

          Bore Size=1.884" Inlet Thread=M10X1.5 Bleeder Thread=3/8X24


          attached are pics of dissasembled 98-02 style front and rear calipers. Pics courtesy p71interceptor.com
          Attached Files
          86 Lincoln Town Car (Galactica).
          5.0 HO, CompCams XE258,Scorpion 1.72 roller rockers, 3.55 K code rear, tow package, BHPerformance ported E7 heads, Tmoss Explorer intake, 65mm throttle body, Hedman 1 5/8" headers, 2.5" dual exhaust, ASP underdrive pulley

          91 Lincoln Mark VII LSC grandpa spec white and cranberry

          1984 Lincoln Continental TurboDiesel - rolls coal

          Originally posted by phayzer5
          I drive a Lincoln. I can't be bothered to shift like the peasants and rabble rousers

          Comment

            #6
            rear rotor data

            1998 rear rotors, crosses 96-02

            Outside Diameter 11.215

            1995 rear rotor, crosses 91-95

            Outside Diameter 11.415
            86 Lincoln Town Car (Galactica).
            5.0 HO, CompCams XE258,Scorpion 1.72 roller rockers, 3.55 K code rear, tow package, BHPerformance ported E7 heads, Tmoss Explorer intake, 65mm throttle body, Hedman 1 5/8" headers, 2.5" dual exhaust, ASP underdrive pulley

            91 Lincoln Mark VII LSC grandpa spec white and cranberry

            1984 Lincoln Continental TurboDiesel - rolls coal

            Originally posted by phayzer5
            I drive a Lincoln. I can't be bothered to shift like the peasants and rabble rousers

            Comment

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