How to repair a Kirban Adjustable Fuel Pressure Regulator

Posted by BogusSVO, Sep 13, 2011
Newbie Forum - Beginner DSM modification questions and discussions. Common, repetitive, and general discussions will get dumped here from other tech forums. Unless you're a Probationary member you shouldn't post threads here.

  1. BogusSVO

    BogusSVO DSM Wiseman

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    Pensacola, Florida
    How to repair a Kirban Adjustable Fuel Pressure Regulator

    I had issues with mine pouring fuel from the vacuum line into the intake, ripped diaphragm.

    The first thing is to find a replacement diaphragm. I did at
    Kirban Performance - Buick Grand National Parts, T-Type, Turbo T, GNX Parts, Chevrolet Chevy Corvette Parts, Ford Mustang Parts, Pontiac GTO Parts www.kirbanperformance.com

    This was the only place that had them after calling several Kirban dealers.

    $20 for the part and $9 for shipping I had one.

    Now remove the AFPR from the car, and into the shop with it.

    A set of allen wrenches is all that is needed, along with the new parts.
    [​IMG]
    Next is to slightly loosen the cover bolts around the top, just a little
    [​IMG]

    Then workings in steps around the cover remove all 6 bolts, so the spring and puck and diaphragm are exposed
    [​IMG]

    The rip in the diaphragm.
    [​IMG]

    Pick up the cap and place the puck then the spring and the new diaphragm on top, then slide all 6 bolts through the cap and diaphragm
    [​IMG]
    now replace the base and align the bolt holes up and squeeze the unit together, so the bolts can be started.
    [​IMG]
    In a star pattern work the 6 bolts down equally
    Till the cap is square on the base and all the bolts are snug.
    [​IMG]

    Now your ready to install the AFPR back on the fuel rail.
    Make sure to check your fuel pressure setting.
    #1
  2. crash89

    crash89 Supporting Member

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    Janesville, Wisconsin
    Why did you post this in the newbie forum? Should have gone in the tech articles..

    Pretty good write up though!
    #2

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