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Leaking BRPV at idle?

Discussion in 'Carburetor + Boost Tech Questions' started by PRNDL, Nov 14, 2022.

  1. PRNDL

    Joined:
    Dec 1, 2020
    Anyone experience this? 750 Holley with BRPV in the rear. I could not get rid of a rich stinky smoke plug blackening idle. Not even with a bunch of timing. The chamber behind the Brpv was full of fuel. Not sure how it was getting into the engine. I have the PV port blocked off.

    Any ideas or similar experiences?
     
    PRNDL, Nov 14, 2022
    #1

  2. tbird

    Joined:
    Sep 1, 2004
    If fuel got past the diaphram, the diaphram is most likely bad and the power valve may be hung open.
    Visually confirm that the valve is in a seated position.
     
    tbird, Nov 15, 2022
    #2
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