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  1. #1
    Petty Officer 1st Class Ki Ki's Avatar
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    Default Freezing temperatures at night, without use for 1 month?

    So, unfortunately we haven't been able to use our 50 hp outboard Johnson from the 70s the past month. We plan to use it this weekend. However, being in Michigan, we've already had a few nights with frost. Will this harm the engine that it's been so cold at night without being winterized yet?

    It's a cold start to begin with, but do we need to do anything special to start it tomorrow? We're going to really let it warm up once started for a while.

    We store it with a tarp and in the upright position.

  2. #2
    Moderator ezmobee's Avatar
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    Default Re: Freezing temperatures at night, without use for 1 month?

    You don't really NEED to winterize an outboard. As long as you leave it in the vertical position, all the water drains from it. Fogging it and what not has more to do with an extended layup period than anything to do with temps.
    1976 18' Starcraft SuperSport 90HP Evinrude
    Restoration thread http://forums.iboats.com/boat-restoration-building-hull-repair/18-starcraft-supersport-restoration-357767.html
    1966 16' Starcraft Jupiter 85HP Johnson
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  3. #3
    Supreme Mariner Silvertip's Avatar
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    Default Re: Freezing temperatures at night, without use for 1 month?

    If the lower unit seals have allowed water into the lower unit -- yes, feezing that water can crack the lower unit. If there is no water in the lower unit just leave the engine vertical and it will be fine.

  4. #4
    Vice Admiral 5150abf's Avatar
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    Default Re: Freezing temperatures at night, without use for 1 month?

    You may need to choke it alittle more than normal but other than that nothing special, it will run fine no matter tha outside temp.

    I have a top for my boat and go out till the temps are in the 30s with no problems.
    GO IRISH!!!!

  5. #5
    Fleet Admiral
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    Default Re: Freezing temperatures at night, without use for 1 month?

    we duck hunters run them in below freezing weather with no problems. A little longer to start; the batteries are often the weak spot, and you have to be mindful of things like the lower unit and sometimes frozen gas lines when it gets real cold. Freezing to up to frost, no problem--just don't slip on a frosted deck!
    A man of constant boat tinkering.

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