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  1. #1
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    Need help identifying this Mercury Crank

    Starting to organize my old parts, and don't remember what crank this is... A little helping hand would be appreciated.


    Thanks in advance
    Attached Thumbnails Attached Thumbnails IMG_4842.jpg   IMG_4843.jpg   IMG_4844.jpg   IMG_4845.jpg   IMG_4847.jpg  

    ---

    Mercury V6 FAQ http://www.biggerhammer.net/mercury/
    1994 Intrepid 23 WA w/twin 2002/2005 150 EFIs
    1984 Mako 224 w/2000 Mercury 225 - Sold

  2. #2
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    older (or any) merc with a key way???

  3. #3
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    3.0L - I don't see an oil gear in the pictures, could be from an Optimax or newer EFI

  4. #4
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    I bought it years ago, for project that has languished (I actually have 2.5L and 3L cranks here), so if this one of the 3L cranks this would appear to be a 250 or 300 ProMax... Any way to narrow it further?
    ---

    Mercury V6 FAQ http://www.biggerhammer.net/mercury/
    1994 Intrepid 23 WA w/twin 2002/2005 150 EFIs
    1984 Mako 224 w/2000 Mercury 225 - Sold

  5. #5
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    The older carb, EFI, Promax Had an oil pump that ran off of a gear on bottom of the crankshaft. The newer stuff has an electronic oil pump so they did away with the gear. I am not sure what the year was that everything switched to electronic. Hope it helps.

  6. #6
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    that don't "qualify" as OLD ta me... guess cause i'm gettin' pretty ancient myself!

  7. #7
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    That casting # claims to be a 1996 up 200/225/250 3.0 efi crankshaft. So no gear, electronic oil pump in '96 on.
    AIRWALK
    gettin' old ain't for sissies

  8. #8
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    gear is not shown it on the other end it just a plain early 3.0 crank

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