Recent content by haliburton Lk

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    1989 4.3 W/OMC drive "thumb"

    I have a 1989 Oliver with a 4.3 Merc and OMC drive, I sometimes get a thumb from the drive, like I hit something in the water, it doesn't happen all the time and a different speeds, no griding or nothing just a thump...HELP!
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