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Thread: Trim pump help

  1. #1

    Default Trim pump help

    Mercruiser 5.7 with alpha one out drive. Pulled the trim pump lines and I will get a steady stram when down button is pushed. I get no fluid(but pump runs) when I push the up button. Is the pump bad? It worked great until yesterday. Thanks.

  2. #2
    Join Date
    Aug 2006
    Location
    SW Ohio, USA
    Posts
    10,178

    Default Re: Trim pump help

    Is the pump bad?
    Tap on the valve body w/the handle of a screwdriver...valve may be stuck. How old is the assy? I threw a working assy in the recycle bin last spring...was sitting around taking up space. Motor needed a brush assy. Never got around to it.
    Fix minor things (replace wear items for preventative maintenance.) that cause major problems before they break.

  3. #3

    Default Re: Trim pump help

    I tried tapping it with no change. I don't know the age. I assume original. I've only had the boat a few months.

  4. #4
    Join Date
    Aug 2006
    Location
    SW Ohio, USA
    Posts
    10,178

    Default Re: Trim pump help

    If the reservior is metal it is old. If it has a white plastic reservior w/single screw on the bottom it could be from the mid 1980s. A new complete assy. from SEI is about $300 and Merc. $450. Search eBay http://www.ebay.com/sch/eBay-Motors-...im+pump&_rdc=1
    Fix minor things (replace wear items for preventative maintenance.) that cause major problems before they break.

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