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  1. #1
    Join Date
    Apr 2010
    Location
    Chicago Suburb - Grayslake
    Posts
    40

    Default Anti-siphon valve

    had some problems with engine losing power intermittently at higher speeds with weight on the boat. I pulled the antisiphon valve and found what looked to be some small pine needles that must have some how fallen in to the tank. The spring load on the check ball bearing seem to move freely but after I cleaned out the needles it seemed kind of hard to blow thru the valve. I have 2 questions. 1. Should it be kind of hard to blow thru the valve? Or should I be able to blow thru with out any restriction? 2. Is it possible that those little pine needles were causing the hesitation at higher speeds?

  2. #2
    Join Date
    Jul 2006
    Location
    Keswick, Ontario, Canada
    Posts
    1,847

    Default Re: Anti-siphon valve

    It should be very hard to blow through, you want that ball to stop fuel from siphoning from the tank in the event of a fuel line rupture.

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