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Re: electric alternator wiring
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Posted by Jon H on November 12, 2004 at 16:26:30 from (69.26.16.168):
In Reply to: Re: electric alternator wiring posted by brio bean on November 12, 2004 at 14:33:40:
I have no experience with Hitachi alternators,but a fellow who seemed to give reliable advice about alternators once posted this about expermenting with an unknown internal regulator alternator. "Apply 12V to the unknown leads using a test light or small range ammeter,the sense wire will not flow any measurable amperage,while the field/exciter wire will draw several amps". This sounds reasonable,as this is how it works on the 10-12 SI Delco alternator. The sense wire should be connected to the alternator output stud and the exciter wire should be connected to battery power only when the ignition switch is on. The Hitachi may or may not need a Diode or resistor to block return flow if the exciter wire is connected to the ignition terminal of the ignition switch as is necessary on a Delco internal regulator alternator. Are there loose dangling wires from the alternator or are there just terminals with nothing connected? Maybe you should check if the alternator charges without these other wires connected on the chance it has some sort of one wire conversion like is done with the Delco alternators.
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