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  1. A

    3.0 omc valve setting

    how do i adjust valve lash on a 3,o omc, i have been researching it and have found several different ways to do it, what is the best way?
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    3.0 omc running real rough

    i have a 1984 3.0 omc, my problem is this. in the driveway on the muffs, the engine runs as smooth as can be, today i took it out on the water and it ran real good for about a min, then it started coughing and sputtering real bad and died, i started it up and it was idling real rough, then...
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    looking for 3.0 omc

    i am looking for a 3.0 omc, the one that i have is worn real bad and needs replaced it is an 84, where can i get one
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    engine swap

    i have a 1984 3.0 omc with a stringer outdrive, is it possible to change the 3.0 out for a 4.3 omc? the adapter housing has 2 ports for a v6 but one is covered with a rubber cap.
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    84 omc trim problems

    "i have a 84 omc with the trim "i have a 84 omc with the trim not working, the tilt works just fine, but when i push the buttons for the trim it just clicks and that is all it does. any ideas?"
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    1984 30 OMC blowing smoke

    "i have a 1984 3.0 OMC, the pr "i have a 1984 3.0 OMC, the problem that i am having if it is even a problem, is that when i start it up, it blows alot of smoke and i mean alot, after about 10 minutes it seems to clear up, i ran a compression test and all 4 cylinders are about 120lbs, is that...
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    Omc 30 timing

    i have a omc 3.0 and the timin i have a omc 3.0 and the timing marks have worn off and was wondering where i could get a diagram for the timing. and where i should set the timing
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    1984 30 running problems

    "i have a 1984 OMC 3.0 i took "i have a 1984 OMC 3.0 i took it out this last weekend and it was running fine, it was running at 35 mph or so for several minutes, then all of a sudden it started loosing power and started coughing and sputtering, i reduced the speed to about 30 mph and it would...
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    1984 30 starting problems

    "i have a 1984 3.0 the problem "i have a 1984 3.0 the problem is i can turn the key on to start the motor and nothing happens. not even any clicking. none of the gauges come on. if i leave the key on and jump across the starter, it will start. and if i turn the key off it will shut the motor...
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