Thread: 3.0L Block ID

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  1. #1
    Member Nikon Man's Avatar
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    3.0L Block ID

    When buying just a bare powerhead, how can you identify what that block is ? Is there a location on the block that carries the S/N. I was told the S/N is OG362837, but I'd like to be able to find a positve ID on the block to confirm what I have.

    Thanks,

    Gary



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

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  2. Member Jig A Low's Avatar
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    #2

    Re: 3.0L Block ID (SPRINT 290DC)

    there should be a freeze plug on the lower starboard side of the block that has the serial # stamped into it.
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  3. Mercury 3L/4 Stroke/Verado Moderator EuropeanAM's Avatar
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    #3

    Re: 3.0L Block ID (SPRINT 290DC)

    You can also "compare" the block casting numbers. Usually somewhere along the mating surfaces of the block.



    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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  4. Member Nikon Man's Avatar
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    #4

    Re: 3.0L Block ID (EuropeanAM)

    Thanks Perry & Don. The numbers matched, but now the second question and I ask this because of bleed line routing, How do you positively ID the S/N (1st post) to the actual year of the motor................?????????????

    As an example, it may have been a carb block converted to EFI, so the bleed lines run differently between the two.
    Gary



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

    S.W. Ohio

  5. Mercury 3L/4 Stroke/Verado Moderator EuropeanAM's Avatar
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    #5

    Re: 3.0L Block ID (SPRINT 290DC)

    <TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SPRINT 290DC &raquo;</TD></TR><TR><TD CLASS="quote">Thanks Perry & Don. The numbers matched, but now the second question and I ask this because of bleed line routing, How do you positively ID the S/N (1st post) to the actual year of the motor................?????????????

    As an example, it may have been a carb block converted to EFI, so the bleed lines run differently between the two.</TD></TR></TABLE>

    If you can FIND the serial number.... I can run it to identify it.



    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).
    Mercury Parts, Mercury Outboards, Smartcraft & Accessories, Injector Service, TDR Reeds- BBC Sponsor

  6. Member Nikon Man's Avatar
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    #6

    Re: 3.0L Block ID (EuropeanAM)

    Don,

    S/N is OG362837.

    Thanks
    Gary



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

    S.W. Ohio

  7. Mercury 3L/4 Stroke/Verado Moderator EuropeanAM's Avatar
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    #7

    Re: 3.0L Block ID (SPRINT 290DC)

    <TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SPRINT 290DC &raquo;</TD></TR><TR><TD CLASS="quote">Don,

    S/N is OG362837.

    Thanks</TD></TR></TABLE>

    Model: 1225425SD
    1996 MERCURY 3.0L Carb Model (was a on a counter rotating 25" shaft).



    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).
    Mercury Parts, Mercury Outboards, Smartcraft & Accessories, Injector Service, TDR Reeds- BBC Sponsor

  8. Member Nikon Man's Avatar
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    #8

    Re: 3.0L Block ID (EuropeanAM)

    Thanks Don, you are an unlimited source of good information.........and I appreciate everything you do for us all.

    Gary



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

    S.W. Ohio

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