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Early B 12v Conversion

Mike My 1940 B has been half way converted to 12 volts negative ground: the generator was replaced with an alternator but not wired and the 6 volt battery was replaced by a 12 volt battery negative ground. No lights on the tractor.

In as much as I am using the original 6 volt positive ground starter with a 12 volt battery do I need to be concerned about this?

Jeff Z. No, The starter will work fine 12v - ground.
Greg Warner 1949 AC model B.I have been using mine for 20 years and it works fine.I got the Voltage regulator at a tractor place.I used a 12v generator which is good for 10amps, and replaced the belt with a longer one so the gen. dont hit the carb.(Moves it away from the engine a bit) I use a Ford style solenoid and a push button. I need to tighten the belt once in a while but its worth it.Turns over like crazy. However, the teeth on the starter seem to be grinding up a lot lately. I need to adjust the starter drive again. Seems it don't kick out far enough to engage the flywheel and I have the starter pushed in all then way. GW

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