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omc 235 sterndrive

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  • omc 235 sterndrive

    I need help! Recently purchased 1975 cobalt dv19. Made some minor repairs. Took the boat out for a test run up and down the lake, and everything was fine. Went back out a few hours later, again everything was good, then all of a sudden something breaks in the outdrive. It now appears that something give between the engine and the ballgear driveshaft. I'm told there is a coupler there. I own a factory omc service manual, but can't find it mentioned anywhere. I've looked at all the parts diagrams too, and can't find it there either. Any info would help. thanks

  • #2
    Re: omc 235 sterndrive

    Originally posted by gfox333 View Post
    between the engine and the ballgear driveshaft. I'm told there is a coupler there.
    I've looked at all the parts diagrams too, and can't find it there either.
    it will be shown with the main "crankcase group" - it's shown at the rear of the engine crankshaft part 34 in the pic
    0908680 COUPLING,Driveshaft
    Baba-buoy.

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    • #3
      Re: omc 235 sterndrive

      Found it! Thanks Still baffles me there is no mention of removal- replacement in the manual. The manual for a 1975 235 does say you can remove the intermediate housing without removing the engine. I assume that is what needs to be done to change the coupler. Correct? Thanks

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      • #4
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        Re: omc 235 sterndrive

        you have to remove the engine
        the coupler comes off when you remove the engine flywheel

        whether you separate the engine from the intermediate to remove it, or remove the engine/intermediate as a package and then separate them on the floor is a matter of personal preference, mainly due to access in the hull
        it's easier to pull the intermediate out with the motor on some boats
        Baba-buoy.

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