Quote:
Originally Posted by 40larry
IS THERE ANY REASON WHY AN ORIGINAL 1939 TO 1948 FORD GENERATOR CAN NOT BE USED WITH A 12 VOLT REGULATOR AND 12 VOLT BATTERY ?
40larry
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Yes there is a very good reason why a six volt generator will not work WELL in a 12 volt system. The difference between a six volt generator and a 12 volt generator is the gauge (size) of the wire used in the field coils and armature windings,, which is much larger in the six volt generator. It requires much higher RPM before the generator will produce the required 13 volts to close the cut out contacts to commence charging the 12.6 volt battery. Likewise for a given RPM compared to a 12 volt generator the 6 volt generator will require a much higher RPM to say charge 15 amps. Another problem is the 6 volt field coils on 12 volts will draw twice the current (amps) of the 12 volt field coils. This heavier field current is carried and controlled by the voltage and current regulator contacts which will enjoy a much shortened life. YES, YES, I know some of you have used a six volter for over 59 years with no problems. But the design facts are that a six volter will NOT WORK AS WELL on 12 volts as it would on six volts. As they say Horses for Courses.
Regards, Kevin.