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I've just bought a chrome alternator from Ebay.
I still have the choice of a 1 wire or 3 wire.
I've read some of the past questions on the forum about 1 and 3 wires, are the 1 wire alternator's used just to look good with only 1 wire? Otherwise what is the real difference?
Keeping the car original, and simple, would it be best to just buy a 3 wire?
thanks.
 

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Hook it up as 3 wires. If you run 1 wire you have to rev the engine to get it to kick on and start charging.
 

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Originally posted by mounch@Aug 15 2005, 08:12 PM~3629307
I've just bought a chrome alternator from Ebay.
I still have the choice of a 1 wire or 3 wire.
I've read some of the past questions on the forum about 1 and 3 wires, are the 1 wire alternator's used just to look good with only 1 wire? Otherwise what is the real difference?
Keeping the car original, and simple, would it be best to just buy a 3 wire?
thanks.
As everyone said, get the 3 wire and learn how it works so that you can troubleshoot your charging system if you run into problems later. The voltage sensing wire and the warning light circuit is what I'm referring to.

And just a tip, you can use that chrome housing on any regular 3 wire alternator. The housing unbolts and can be used on your replacement if the one you buy goes out. A new 3 wire alternator (say for a 70s chevy) runs about $40. Better then buying another $100 alternator just for the housing.

 
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