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  1. #1
    New Member
    Join Date
    Jan 2013
    Comox bc canada
    Yanmar Mdel # 4JH4AE

    Default Diesel Fuel problems aboard our sailboat in Central America

    Have never had problems with diesel before. We are experienced sailors and my husband very mechanical.
    New Yanmar 4JH4AR 2 years ago. Left the boat in El Salvador and only ran it to make water periodically over the last nine months. Travelled to Costa Rica and have had nothing but problems since. Have emptied tank, cleaned fuel and continue to pump fuel through the tank to filter the gunk in it. From our research we realize that it might be bad fuel and or temperature problems............any other ideas?

  2. #2
    Platinum Member Heywood Jannockitov's Avatar
    Join Date
    Jan 2008
    Near Schomberg, Ontario Canada, the equestrian center of the universe
    Deere 27d, JD 5425 cab, JD F620, JD XUV 850D, Case 580 SE, IH 484

    Default Re: Diesel Fuel problems aboard our sailboat in Central America

    You've probably got microbes, ie. diesel bacteria. Marine diesel fuel tanks are a prime breeding ground.
    Definition of "Horse": A 4 legged mammal looking for an inconvenient place and expensive way to die.

  3. #3
    Super Star Member Diamondpilot's Avatar
    Join Date
    Jan 2007
    Daleville, IN
    Jinma 254/284 Ford 861 Powermaster at work


    Dump that fuel, clean tank, new filters, then fresh fuel. Check for water leaks and treat all fuel that sits any period of time.


  4. #4
    Veteran Member
    Join Date
    Mar 2008
    southwest NH
    Kubota L5240

    Default Re: Diesel Fuel problems aboard our sailboat in Central America

    What Chris said and give it a dose of this :
    Star Tron Enzyme Fuel Treatment - Star Tron Diesel Additive
    Good luck, if you can't find a treatment down there give one of us a yell and we will try to send you some .
    'Master of a thousand indispensable skills destined to keep him at the poverty level'

    'You can't beat a man at his own trade'

  5. #5
    Super Member
    Join Date
    Dec 2007
    Ford 3930

    Default Re: Diesel Fuel problems aboard our sailboat in Central America

    If you have a lot of microbial growth in the tank, you'll likely need a strong biocide designed for diesel fuel to kill it.

    The one I've used was a Case branded one, bought at an Ag dealer in Ont. Canada. Down your way, if you can't find anything at a marina area, try looking up a Cat(erpillar) dealer - they are often pretty good at covering out of the way places.

    As stated, try and evaluate if there is a lot of water contamination in the tank, as that can accelerate this type of problem.

    Good luck, Rgds, D.

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