1978 OMC 140hp powerhead starter can hardly turns

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    Beno


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    #208714

    I have a OMC 140hp powerhead (140TL78C) 1978? serial J4989592

    I have a Deep cell fresh battery hooked up to it fully charged. When I engage the solenoid the flywheel does a slow Rrr- R- Rrrrr

    I can take my thumb and turn the flywheel (I can’t whip it around or anything, but I can turn the engine over with just my thumb)

    I Rr-r-rrr’d the flywheel over like 10-15 times, the starter gets so hot you cannot touch it. I removed the starter and cannot hold it, I have to wait for it to cool down.

    Anyone know of any good tests to do? should I test the starter somehow?

    thanks
    Ben

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    dave-bernard

    US Member - 2 Years
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    #208717

    may just need a good cleaning.

    frankr
    frankr


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    #208731

    Might be burnt up if it got that hot?

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    billw

    US Member - 2 Years
    Replies: 1254
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    #208732

    When cranking there should be a MINIMUM of 9.5 volts between the starter terminal and ground. If there is good enough voltage, and the starter is as hot as you say, the starter is probably trash, like Frank says. And it DOES happen sometimes, with those starters, too. Bad connections and bad brushes are easier to explain how to troubleshoot than a burned up starter but ultimately, if that were the case, you wouldn’t be seeing the starter getting that hot.

    Long live American manufacturing!

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