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Is this correct wiring for 81 alternator? Thanks

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Old 01-15-2003, 01:31 PM
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Cor6996vette
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Default Is this correct wiring for 81 alternator? Thanks

There are two small wires red and black go to the alternator connector , a big red wire go to battery and there are two big black wires go to alternator housing one is for GND and what is the other ? Thankyou very much. :smash:


[Modified by myisa69, 9:16 PM 1/15/2003]
Old 01-15-2003, 09:02 PM
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mapman
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Default Re: Is this correct wiring for 81 alternator? Thanks (myisa69)

myisa69,

... Two small wires red and black go to the alternator connector , a big red wire goes to battery and there are two big black wires go to alternator housing one is for GND and what is the other ? .....

I believe, the two wire plastic alternator connector should be a 12AWG red wire and a 20AWG BROWN wire. Brown wire goes to the generator light, red wire to the fusible link.

Another large red wire is connected to BAT. That wire, and a similar sized black wire (connected to the alternator ground terminal), go into a plastic sheath that runs, through the frame, to the rear of the car. The red wire connects to the junction block (+) in the battery compartment. The black wire connects to the frame at the same location as the battery ground cable.

The other black wire, from the alternator ground, goes forward, where it is spliced together with the grounds for the head lights and turn signals. It is circuit 150 on the wiring diagram of my 1980.



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