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4 to 3 wire Alternator

 
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Old 06-10-2014, 12:36 AM
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4 to 3 wire Alternator

I have BB9 Prelude (2.0), it is a OBD 2A ECU.

And my alternator is dead...It is not brushes.
Alternator have 4 wires, and plug like this in OBD 2A/B picture.

http://ff-squad.com/tech/alternator/...ator.plugs.jpg


But I have at home same alternator, but from Accord H22A7, is it OBD2B.
I don't know is this alternator original from Accord type R, but this alternator have only 3 wires and plug like OBD1 from picture abowe.



Can I use this alternator with 3 wires, and leave fourth wire unpluged?

What is difference btw 3 and 4 wire alternator?
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Old 06-11-2014, 06:30 PM
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Re: 4 to 3 wire Alternator

Um, you need an wire adaptor, they run about 3-7$. The problem is the pulley. You need to swap that pulley onto the next alternator you intend on using. The fact remains the two might night not even be compatible. If it does, put the pics up on here so we can see what you did to the new alternator.
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Old 06-11-2014, 09:48 PM
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Re: 4 to 3 wire Alternator

Funny, I just converted my electric dryer from a 4 wire to a 3 wire tonight

#homeownerproblems
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Old 06-11-2014, 10:47 PM
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Re: 4 to 3 wire Alternator

If the dryer walks out and cloggs the toilet with paper towels, then you'll know if the conversion was a good idea
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