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Thread: 1940 chief blowing blue smoke

  1. #1

    Default 1940 chief blowing blue smoke

    I have a 1940 chief ,that was rebuilt 2 years ago ,just took it for a ride and it started blowing out blue smoke ,motor was completely gone thru 2 years ago ,any ideas what I should check first thanks

  2. #2
    Join Date
    Oct 2011
    Posts
    347

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    check how much oil darins from the crankcase or if you have a level plug above the drain see much comes out there to verify your not wet sumping.
    Check compression,go from there.
    Tom

  3. #3
    Join Date
    Aug 2006
    Location
    So Cal
    Posts
    894

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    yep, I would check for wet sumping first off. Can you see oil returning to your tank with the cap off ? don't make a mess :-) Good luck

  4. #4
    Join Date
    Sep 2005
    Location
    Sarasota, Florida
    Posts
    3,807

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    Like both Toms said, check your crankcase to see how much oil comes out, and then monitor it. I had a '40 Chief that would occasionally wet sump. The engine would get lazy, hot, and smoke. . . Just like a girlfriend I had
    Eric Smith
    AMCA #886

  5. #5
    Join Date
    Jul 2010
    Location
    Vermont
    Posts
    642

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    Quote Originally Posted by exeric View Post
    I had a '40 Chief that would occasionally wet sump. The engine would get lazy, hot, and smoke. . . Just like a girlfriend I had
    I just hit the invisible "LIKE" button on that comment!
    Pisten Bulley is Harry Roberts in Vermont.

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