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Thread: 5.0 liter omc

  1. #1
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    5.0 liter omc

    I have a 5.0 liter omc (1990) had to adjust the idle to about 900-1000 so it wouldn't stall out. Is this the normal range??? This is my first omc and my mercruizer seem to idle lower..... Any help would be appreciated

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    idle should be in the 650-800 range

    Quote Originally Posted by Grooter View Post
    I have a 5.0 liter omc (1990) had to adjust the idle to about 900-1000 so it wouldn't stall out. Is this the normal range??? This is my first omc and my mercruizer seem to idle lower..... Any help would be appreciated
    Sound like you need a tuneup and carb cleaning/adjustment.
    Thank you, Patrick
    1994 18' Classic 350Mag Alpha

    Previously owned Donzis -
    1996 22' Classic, 502Mag Bravo
    1987 20' Minx, 350Mag Alpha
    1975 18' Classic, 350Chevy Volvo 280

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    my ford 5.0 idles at around 600-700 rpm but I don't have any shift interrupter.
    make sure the throttle cable is retracting all the way
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    Did you just unplug the interrupter....? It works ok with out it

  5. #5
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    no I have an older volvo classic they had no electronic shifting mechanism . I would check your cable make sure it is returning the carb to the idle position may also be time to have the carb tuned and cleaned.

    My cable was like an 1/8th to long causing the idle to be too high I had to adjust the bracket a bit
    When the sky is grey,look out to sea.
    When the waves are high and the light is dying,
    well raise a glass and think of me...
    When I'm home again,
    boys, I'll be buying!

    My Ride

    Come Join Us on The Queen Of American Lakes



    Contact Us

    www.lgdonziclassic.com

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