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  1. #1
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    Dec 2006
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    Mecury 3.0 rebuild

    Is it worth to rebuild the 225 3.0 liter EFI's or get new. I have a 21' Ranger with a strong running motor now. Was wondering if I should freshen it up over the winter or sell it for newer technology. It is a 97 Mariner Magnum EFI

  2. Mercury 3L/4 Stroke/Verado Moderator EuropeanAM's Avatar
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    Apr 2008
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    Greenville, SC (US)
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    98,270
    #2

    Re: Mecury 3.0 rebuild (runninrusty)

    Personally, I would recommend doing a leakdown test on that engine to see what it's "true" condition is.

    If the leakdown percentages are good- it may be fine to run for now.

    It's becoming harder and harder to justify putting large amounts of money into older, EFI technology engines.... especially when you consider the fuel economy improvements on later engines.



    Dual Mercury Master Technician- for Mercury Outboards, Mercruiser and Mercury Racing at European Marine in Greenville, SC.
    Still consider myself a "Marine Apprentice" after 48 years (learn something new every day).
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  3. Member Nikon Man's Avatar
    Join Date
    May 2007
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    Liberty Twp., Ohio
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    3,810
    #3

    Re: Mecury 3.0 rebuild (runninrusty)

    IMO, if I didn't like mess'n with these motors, I'd opt for a Opti xs motor, great power and fuel mileage...............
    Gary



    Growing old is inevitable, growing up is optional.......

    S.W. Ohio

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