Re: ballast or resistor or both?

Posted by texp on July 24, 2006 at 19:49:35 from (70.41.9.93):

In Reply to: ballast or resistor or both? posted by e-manhunt on July 24, 2006 at 14:56:28:

What kind of alternator? If it is a single-wire GM Delco, there is a diode available that plugs into the rear SIDE of the altrnator, keeps from getting a back circuit which might drain the battery when the tractor is not running.
As for a 6 - to - 12 conversion, Inless you replace the coil - and maybe the points and condenser with parts that are designed for 12 volts, you are running the risk of burning them out prematurally. If you place a ballast resister in line with the wire that goes from the switch to the coil, you will effectively be running the engine on 6 volts and the rest of the tractor - mainly lights - on 12 volts. SOME tractors have a wire from the starter solenoid to the coil, giving it an extra boost when starting.
Hope this helps!
Tex

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