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  1. #1
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    Default exploded view of dual diaphragm booster

    Hi
    Any one has an exploded view and or good explanation of said unit . Recently had spare Vh359 Hz rear disc booster overhauled . Had previously had b/fluid and water inside . Seal kit ,bakalite manifold and master cylinder pushrod were all replaced . The bakealite section was not physically damaged but water effected .
    Questioning the bakelite part ,as to why it was replaced .

    What is its function in the booster ???????

  2. #2
    casual poster
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    maroochydore
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    Hi swampy
    The bakelite valve in the back holds a rubber seal and filter ,air passes through this valve at normal air pressure ,and pushes the diaphram against "vacuum" air pressure on the other side.
    Mayby the bakelite was close to failing ,oil ,water and brake fluid would soak in to the bakelite ,that plastic is not that resistant .after 40 years .
    You wouldnt want to spend $400 to get it done then it brake

    By any chance do you still have the bakelite valve?

  3. #3
    casual poster Willie's Avatar
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    Bateman Western Australia
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    I have a couple of diagrams. If you let me know an email address I will forward to you.

  4. #4
    been here .......too long Smitty2's Avatar
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    Default

    Quote Originally Posted by swampy View Post
    Hi
    Any one has an exploded view and or good explanation of said unit . Recently had spare Vh359 Hz rear disc booster overhauled . Had previously had b/fluid and water inside . Seal kit ,bakalite manifold and master cylinder pushrod were all replaced . The bakealite section was not physically damaged but water effected .
    Questioning the bakelite part ,as to why it was replaced .

    What is its function in the booster ???????
    beg borrow or buy a genuine GMH VB Commodore service manual
    .. has about 20 pages relating to the repair,overhaul and adjustment
    of both types of booster used (for both drum brake and disc brake rears)
    LOTS of nice diagrams too ..
    __________________________________
    ONE OF THE Aussie V8 MODERATOR/ADMIN TEAM

    Never late in an AussieV8!
    Club circuit racing...the best fun you can have with your pants on

  5. #5
    been here .......too long Smitty2's Avatar
    Join Date
    Mar 2007
    Location
    bayside Melbourne
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    10,043

    Default

    Quote Originally Posted by swampy View Post
    Hi
    Any one has an exploded view and or good explanation of said unit . Recently had spare Vh359 Hz rear disc booster overhauled . Had previously had b/fluid and water inside . Seal kit ,bakalite manifold and master cylinder pushrod were all replaced . The bakealite section was not physically damaged but water effected .
    Questioning the bakelite part ,as to why it was replaced .

    What is its function in the booster ???????
    beg borrow or buy a genuine GMH VB Commodore service manual
    .. has about 20 pages relating to the repair,overhaul and adjustment
    of both types of booster used (for both drum brake and disc brake rears)
    LOTS of nice diagrams too ..
    __________________________________
    ONE OF THE Aussie V8 MODERATOR/ADMIN TEAM

    Never late in an AussieV8!
    Club circuit racing...the best fun you can have with your pants on

  6. #6
    Do you ever leave?
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    1,816

    Default

    hi
    cheers all

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