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Alternator and wiring harness

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Old 05-13-04, 05:41 PM
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Alternator and wiring harness

I'm currently installing the wiring harness on a S4, 1988 engine. When connecting the alternator does the Black or the White connect to the alternator. They both are in very similar positions and both fit.
Old 05-13-04, 06:12 PM
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Anybody?
Old 05-13-04, 06:13 PM
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Black/White should go at the top of the back plug, White/Black at the bottom...
Old 05-13-04, 06:24 PM
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Could you elaborate... I'm new to RX-7's, this is a learning experience for me.
Old 05-13-04, 07:24 PM
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look for my thread on alternstors. I use alt for short.

You will find my thread whichh both wayne and Hailers explain it.

So name Digi7ech keyword alt
Old 05-13-04, 07:30 PM
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do you have an original equipment type alternator? if so, then there should be a 2 terminal receptacle on the back...the wiring harness should have a 2 pin plug that fits the receptacle...the top wire in the plug should be a black wire with a white stripe...there is also a rather large wire that attaches to the top of the alternator, it runs to the positive post on the battery (through the harness)...it is held in place by an 8mm nut...do not allow this "ring" terminal to contact the engine or other grounds (unless the battery has been disconnected), it will blow your main fuse...that explain it good enough?
Old 05-13-04, 07:39 PM
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I have a picture but i keep getting denied ability to post it, its not too big, and yes i used "Post Reply"
Old 05-13-04, 08:46 PM
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Old 05-13-04, 08:50 PM
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all right, just try to explain it as far as your "limited rx-7 experience" will allow...
Old 05-13-04, 08:53 PM
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Ok. I know about the ring connector in the top of the alternator. I also know that on the wiring harness, there are two connectors. One is black plastic, the other white. They are both the same kind of connectiona nd fit the alternator. Both are equadistant from the alternator plug at the back. I'm not sure what to do.

edit: I don't appreciate that "limited rx-7" knowledge comment

Last edited by ConVert; 05-13-04 at 08:56 PM.
Old 05-13-04, 09:27 PM
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On the 88.The plug is white.Thats the one that goes to the alt.Hope this helps.



Ru
Old 05-13-04, 09:31 PM
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LOL, just kidding around...all right, the two plugs you just described sound eerily like the port air and switching solenoid valve plugs for the Air Control Valve, which should be sitting on the right side of the engine, just above the exhaust manifold...if you don't have one (there should be a blank-off plate there), that would explain the two plugs just "hangin' around"...the plug you'll want for the alt will be a clear/ white color, and it should snap in with a click, like I said, it should have two wires- Black/white and white/black, black/w on top...
Old 05-13-04, 09:45 PM
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can I e-mail youa pic wayne? I just want to make sure i'm right here...
Old 05-13-04, 09:49 PM
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man, I'm punchin' out right now...just find the B/W and W/B wire plug and you'll be fine...
Old 05-13-04, 10:08 PM
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I did find it. thanks a lot guys.
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