Print Page - Alternator wiring difficulties

Title: Alternator wiring difficulties
Post by: daliumong on October 13, 2009, 08:47:07 AM

after swapping a new motor, i'm having difficulty wiring it up to my old harness.
All the same wires are present, but for the alternator, instead of the color coded

green stripe
blue stripe
yellow

wires, i instead have 3 yellow wires all bundled up in a quick disconnect

i was wondering if anyone had any ideas how to check which plug was which, or if anybody actually knew which was which

(http://i38.tinypic.com/2jd1ati.jpg)

Title: Re: Alternator wiring difficulties
Post by: Paulcet on October 13, 2009, 08:58:49 AM

From the alternator, they are all the same. Doesn't matter which is which.

Title: Re: Alternator wiring difficulties
Post by: jeremy_nash on October 13, 2009, 09:00:16 AM

if you still have your old motor, you might be able to use a voltmeter set to ohms to determine which is which by comparing your resistance across the wires to your old stator.

Title: Re: Alternator wiring difficulties
Post by: DoD#i on October 13, 2009, 09:06:22 AM

It's a triangle. The resistances should all be pretty much the same (for a good stator). And it doesn't matter - it's all AC, it gets rectified to DC, which way it wiggles is unimportant.

This is from a VW site, but shows the idea perfectly well. Interchange, no difference.
(http://www.ratwell.com/technical/ChargingSystem/AlternatorSchematic.jpg)

Title: Re: Alternator wiring difficulties
Post by: daliumong on October 13, 2009, 09:16:35 AM

thanks guys haha i just went out to take pictures

Title: Re: Alternator wiring difficulties
Post by: jeremy_nash on October 13, 2009, 09:19:09 AM

I was thinking it was 3 phase ac, but didnt want him frying anything :thumb:

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Main Area => General GS500 Discussion => Topic started by: daliumong on October 13, 2009, 08:47:07 AM