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Thread: Brake lines layout

  1. #1
    Join Date
    May 2007
    Location
    Byford, WA
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    Brake lines layout

    Hi There,
    Just trying to figure out the layout of the brake lines for a series 3 88 inch modified. Has a 109 drum brake axel on the front and a standard rear axel. I have two lines come into a T piece, into a flex and then goes forward, land by the steering box.

    I have a master cylinder with two outlets, obviously not the standard original master cylinder unit. As shown in the attached picture. Is it as simple as the one closest to the firewall goes to the rear brakes and the front connection goes to the front brakes via another T piece and flexes or is it a tad more complex than this?

    I can find various brake line diagrams which give different answers. Being brakes I would prefer to get this right first time.

    Any assistance gratefully received.

    Cheers Marty.
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  2. #2
    Join Date
    May 2007
    Location
    Byford, WA
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    Hi there,
    So for information, when carrying out modifications such as this you have to fit a brake proportioning valve to bias the brakes correctly. I bought a Wilwood adjustable proportioning valve so I can set this up correctly when Heinz is eventually on the road. When you fit dissimilar axels such a I now have the standard proportioning valve will work however may not be set correctly.

    The Wilwood valve has two outlets to the front which is handy when piping up the front axel and has a single outlet to the rear with the adjustment on it, also very handy. By all accounts a well made functional valve reasonably priced considering your life depends on it.

    Cheers Marty

  3. #3
    Timj is offline Wizard Silver Subscriber
    Join Date
    Feb 2008
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    Brisbane,Qld.
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    The setup on my 88" with the standard dual system is that the front brakes are closest to the firewall and the rear is at the front. No guarantee that yours would be the same though unless you know what it came off.

    Cheers,

    TimJ.
    Snowy - 2010 Range Rover Vogue
    Clancy - 1978 Series III SWB Game.
    Henry - 1976 S3 Trayback Ute with 186 Holden
    Gumnut - 1953 Series I 80"
    Poverty - 1958 Series I 88"
    Barney - 1979 S3 GS ex ADF with 300tdi
    Arnie - 1975 710M Pinzgauer

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