Register now to get rid of these ads!

anybody have a basic disk front drum rear brake line diagram

Discussion in 'The Hokey Ass Message Board' started by peter schmidt, Apr 5, 2013.

  1. peter schmidt
    Joined: Aug 26, 2007
    Posts: 657

    peter schmidt
    Member
    from maryland

    Need to plumb up a 53 chevy truck its got mustang two front discs and later model chevy drum rear brakes looking for a basic diagram to get me started has a 87 chevy van master cylinder im not sure if the proportioning valve is in the truck bed with all the other parts or not yet. any body have a diagram that could help with plumbing this thing
     
  2. 40streetrod
    Joined: Nov 11, 2007
    Posts: 477

    40streetrod
    Member
    from nj

    look up Engineered Components Inc on the web. They have what your looking for.
     
  3. erikv999
    Joined: Jul 25, 2010
    Posts: 27

    erikv999
    Member

    get a speedway catalog i think it has one plus its free
     
  4. peter schmidt
    Joined: Aug 26, 2007
    Posts: 657

    peter schmidt
    Member
    from maryland

    So after looking at the couple diagrams i could find do i just run the line from the large side of the master cylinder to the front discs and small side to the rear druns with a proportioning valve run inline? Sound good?
     
    Register now to get rid of these ads!

  5. nxcess
    Joined: Mar 30, 2013
    Posts: 109

    nxcess
    Member
    from Mesa, AZ

    If you are using a dual master cylinder you should use a portioning valve. The type of valve that goes in the line to the rear brakes is not really a portioning valve but a flow control valve. It slows the fluid down so the front brakes come in sooner. They may call them portioning valves but they do not regulate the pressure between the front and the rear like a stock valve does. You will need one from a similar type system, disc front / drum rear.
     
  6. peter schmidt
    Joined: Aug 26, 2007
    Posts: 657

    peter schmidt
    Member
    from maryland

    Ok how do i plumb the stock type proportioning valve?
     
  7. airhead
    Joined: Oct 19, 2011
    Posts: 42

    airhead
    Member

    Go to speedway online, look up proportioning valves, go to the stock looking one and look for installation instructions.
     
  8. V8 Bob
    Joined: Feb 6, 2007
    Posts: 2,408

    V8 Bob
    ALLIANCE MEMBER


    Total BS. The proportioning valve, whether stock fixed value or aftermarket adjustable, limits rear line pressure to a percentage of master cylinder pressure once the knee or crack point has been reached.





    You are much better off using an adjustable aftermarket prop valve, simply plumbed inline from the rear brake master cylinder port to the rear brakes. Production style fixed value "combination" valves usually include things along with the prop valve you don't need or want, like front metering and a differential pressure switch. These were made and calibrated for certain vehicles, not intended to be universal, like many suppliers want you to believe.
     
    Last edited: Apr 5, 2013
  9. peter schmidt
    Joined: Aug 26, 2007
    Posts: 657

    peter schmidt
    Member
    from maryland

    Ok cool I'll order the adjustable one from speedway seems simple to plum in since it's just in line with the rear brakes I'll just run all the front lines untill it comes in.
     
  10. Roadsire
    Joined: Jun 28, 2005
    Posts: 43

    Roadsire
    Member

  11. Larry W
    Joined: Oct 12, 2009
    Posts: 687

    Larry W
    Member
    from kansas

    I believe 40 streetrod suggested ECI,these people do this for a living. I would give them a call and get it right.
     

Share This Page

Register now to get rid of these ads!

Archive

Copyright © 1995-2020 The Jalopy Journal: Steal our stuff, we'll kick your teeth in. Terms of Service. Privacy Policy.

Atomic Industry
Forum software by XenForo™ ©2010-2014 XenForo Ltd.