TangoMan
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| posted on 15/3/07 at 09:10 AM |
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Alternator Wiring
I have fitted an alternator off a 2.0DOHC on my Zetec but am concerned about the wiring as the warning light stays on.
it has the following connections
W
D+
B+
Now B+ is pretty obvious as it is larger and will be for battery live.
I have fitted the warning light to W and the other thick wire to D+.
I am reluctant to swap them in case I do some damage that I haven't already done.
Can anyone confirm if I have them the right way around. If so I guess the alternator is shot, which would be annoying as I paid good money for it.
Thanks,
Steve
Summer's here!!!!
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flak monkey
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| posted on 15/3/07 at 09:13 AM |
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IIRC the W is the output for an auto choke, which you can just leave disconnected.
The D+ should be connected to the warning light ciruit.
B+ should be the battery feed.
David
Sera
http://www.motosera.com
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02GF74
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| posted on 15/3/07 at 09:37 AM |
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as below.
B+ +ve battery (12 V)
B- -ve battery (0 V)
D+ igntion lamp
W tacho signal
I would have queried the w = choke but seems that is correct too.
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TangoMan
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| posted on 15/3/07 at 10:29 PM |
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That's great thanks for the info. No wonder the light stays on, and it might explain why the battery has gone flat!!
So, as I have 2 large red wires and the smaller wire for the warning lamp, should I connect both red wires to B+ or leave one unconnected.
Obviously the smaller wire can be swapped to D+.
Summer's here!!!!
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flak monkey
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| posted on 15/3/07 at 10:37 PM |
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Connect both of the battery wires to the B+ terminal. Doesnt make any difference, they are connected in the loom anyway. 
David
Sera
http://www.motosera.com
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TangoMan
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| posted on 16/3/07 at 10:36 PM |
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Thanks Flak.
I just hope I haven't blown the diode running it connected up wrongly.
Summer's here!!!!
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