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hot battery post

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  • dondi
    started a topic hot battery post

    hot battery post

    1985 thundercraft merc io 140 hp after testing fuel pump i noticed my battery wire was very hot what would cause this ? short somewhere? and how do i find it? battery was only connected about a minute.

  • Bondo
    replied
    Re: hot battery post

    Originally posted by dondi View Post
    1985 thundercraft merc io 140 hp after testing fuel pump i noticed my battery wire was very hot what would cause this ? short somewhere? and how do i find it? battery was only connected about a minute.
    Ayuh,... It's probably corroded,...
    As Don says, clean 'em up...

    Resistance equals Heat in the electrical world, it usually happens at the point of the problem,...

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  • Don S
    replied
    Re: hot battery post

    Just like cars or anything else, check the connection.
    Loose, corroded, damaged cables cause heat. Clean, tighten (with a wrench), and replace if damaged any connection that is hot when cranking.

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