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Milky White Substance in Fuel Tank?

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  • Milky White Substance in Fuel Tank?

    Guys:

    I have had problems with my boat all summer! Bad relay on tilt motor, cracked cylinder. Boat ran fine a couple weeks ago, but last weekend I couldn't get it to idle. Took it back to my Excellent Mechanic and he said I had water in my gas tank.

    Today, I drained the tank and the picture shows what was in the tank.

    I have a plastic tank, mix my own oil & gas.

    Any ideas what this stuff is and how I can avoid it in the future????

    Thanks



  • #2
    Re: Milky White Substance in Fuel Tank?

    Agree, likely from water.
    Jim

    ===============================
    I don't respond to Private Messages PM's that are motor questions.

    For basic information on a wide range of topics, see Top Secret File
    Link: http://forums.iboats.com/showthread.php?t=299680

    OEM shop manual: outboardbooks.com or Ebay

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    • #3
      Re: Milky White Substance in Fuel Tank?

      I'd say water for sure.
      1972 West Wind Aerodyne 15' with 1991 Johnson 25 HP

      Tow Vehicle - 2005 GMC Sierra 2500 HD 6.0 Liter Vortec

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      • #4
        Re: Milky White Substance in Fuel Tank?

        Any idea how it could have gotten in my tank??? Ethanol Related??

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        • #5
          Re: Milky White Substance in Fuel Tank?

          It could have gotten in with air, then been adsorbed by the ethanol. StaBil for Ethanol will help control that, but only a water separating fuel filter will keep it out of your engine.
          sigpic

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          • #6
            Re: Milky White Substance in Fuel Tank?

            Originally posted by JB View Post
            It could have gotten in with air, then been adsorbed by the ethanol. StaBil for Ethanol will help control that, but only a water separating fuel filter will keep it out of your engine.
            The thing is, I put StaBil ethanol treatment every time I fuel - never go without. I pulled at least a gallon of the milky substance out of of the tank. The Mechanic, who I trust implicitly, said ethanol was most likely the culprit, but given the amount I removed, I wonder. He checked the fuel cap and said that it looks fine. The tank is empty and dry - I think I am going to just pay the premium for Ethanol free fuel.

            Is it worth it??

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            • #7
              Re: Milky White Substance in Fuel Tank?

              It's possible you just got a load of bad gas with water already in it.
              Jim

              ===============================
              I don't respond to Private Messages PM's that are motor questions.

              For basic information on a wide range of topics, see Top Secret File
              Link: http://forums.iboats.com/showthread.php?t=299680

              OEM shop manual: outboardbooks.com or Ebay

              Comment

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