Teseal's latest activity

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    Teseal replied to the thread 1965 3.9hp plug fouls.
    I agree, I expect to find some oil floating in there. The quantity is what is concerning me, especially after such short runs. Its not...
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    Teseal replied to the thread 1965 3.9hp plug fouls.
    That ratio info is pretty interesting. I don't remember the brand of oil just that it's the correct spec, marine, and in a blue bottle...
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    Teseal replied to the thread 1965 3.9hp plug fouls.
    OK so going to run on the J8C for now. Still running way to rich it seems, lots of smoke and oil in the water. Waiting for a service...
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    Teseal replied to the thread 1965 3.9hp plug fouls.
    merc850 appreciate the info. For some reason I didn't see your post and got a J8c plug. That keeps it running now but there is still...
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    Teseal replied to the thread 1965 3.9hp plug fouls.
    OK thx much
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    Teseal replied to the thread 1965 3.9hp plug fouls.
    OK so doesn't that also support it being a '66 rather than '65 ???
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    Teseal replied to the thread 1965 3.9hp plug fouls.
    Yeah new pump and prop shaft seal. Guess I should check the ignition even tho it seems to be doing it s thing. The B5HS plug came up...
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    Teseal replied to the thread 1965 3.9hp plug fouls.
    All I can tell you is the Mercury SN chart lists it as a 1966. https://www.marineengine.com/mfr/mercury_models.html Either way when I...
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    Teseal replied to the thread 1965 3.9hp plug fouls.
    It's a 1966 model 3.9 (39)
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    Teseal replied to the thread 1965 3.9hp plug fouls.
    Here's some before and during some of the service that I just happen to have on my phone. Needed to remove the power head to replace...
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    • 20231221_180901.jpg
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    Teseal replied to the thread 1965 3.9hp plug fouls.
    Let me try to get some pics for you.
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    Teseal replied to the thread 1965 3.9hp plug fouls.
    Sorry racerone I missed one of your posted questions, I did not look into the ignition because I could get the spark to jump 1/4" as...
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    Teseal replied to the thread 1965 3.9hp plug fouls.
    Something I had seen researching made me think it was a '65 but I can't find it now
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    Teseal replied to the thread 1965 3.9hp plug fouls.
    #1885875
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    Teseal replied to the thread 1965 3.9hp plug fouls.
    I mentioned it was Mercury Marine...
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