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Restoring 1944 BN Farmall Tractor. Originally pos or neg ground?

Posted by admin in farmall tractors on March 18th, 2009


Mustang Girl is almost there. It probably is 6 Volt, positive ground. If it has a battery, you will know if 6 or 12 volt. if not, look for a ballast resistor on the firewall. That would be in-line between the starter solenoid and the ignition switch or coil, to reduce voltage if changed to 12 volt negative ground.

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2 Responses to “Restoring 1944 BN Farmall Tractor. Originally pos or neg ground?”

  1. Comment by mustang_girl
    March 18th, 2009 at 12:29 pm

    Hi! If it's 6 bolts, it might have been positive ground. Good luck!!
    References :

  2. Comment by Jim B
    March 18th, 2009 at 1:09 pm

    Mustang Girl is almost there. It probably is 6 Volt, positive ground. If it has a battery, you will know if 6 or 12 volt. if not, look for a ballast resistor on the firewall. That would be in-line between the starter solenoid and the ignition switch or coil, to reduce voltage if changed to 12 volt negative ground.
    References :

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