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Alternator Wiring
Posted: Sun Apr 05, 2009 1:58 pm
by Mikie711
Can somebody with an S1 tell me which way round the 2 wire go on to the alternator. Forgot to look before I took it off and can't remember which way round they should be

. Think the larger of the 2 goes to the inside an the warning light wire to the outside but better to check. Oddly there is no mention in the service manual that I could find.
Re: Alternator Wiring
Posted: Sun Apr 05, 2009 3:56 pm
by tut
Long time ago since mine burnt through Mike, but are not the two connectors of different width?
tut
Re: Alternator Wiring
Posted: Sun Apr 05, 2009 5:18 pm
by Will ing
Mike,
Just had a look at my old engine, as Tut says they are different and it's the actual threaded stud's that come out of the alternator which are different. From memory the holes on the wire connectors have different ID's to match.
Will
Re: Alternator Wiring
Posted: Sun Apr 05, 2009 5:46 pm
by Mikie711
Both the studs are the same thread, and one wire is thicker than the other. Just can't remember which way round they go.
Re: Alternator Wiring
Posted: Sun Apr 05, 2009 7:01 pm
by Will ing
....ah, thats a sh*t, i do recall them being different size wires I'll go an have a look
What colour are they Mike. I will check also
Will
Re: Alternator Wiring
Posted: Sun Apr 05, 2009 7:09 pm
by Mikie711
Ones a large gauge brown wire that comes from the starter, not sure about the smaller think it's brown and yellow.
Re: Alternator Wiring
Posted: Sun Apr 05, 2009 7:50 pm
by Will ing
I'll call you
Re: Alternator Wiring
Posted: Sun Apr 05, 2009 8:07 pm
by Will ing
on mine the large wire goes to the top most / forward most connector as the alternator sits on the car
CIMG2178.JPG
in the picture above the furthest left
cheers
Re: Alternator Wiring
Posted: Sun Apr 05, 2009 9:15 pm
by Mikie711
That's what I thought and means my alternator is probably toast

. Charge warning light stays on, will have to put a volt meter across it to confirm.
Re: Alternator Wiring
Posted: Thu Apr 09, 2009 6:35 pm
by Gourlay83
Don't know if you got it fixed but here is my old engine with all the wiring still connected. Thinking about selling the engine in bits, so if your looking for an Altinator send me an email.
Cheers
Alan
Re: Alternator Wiring
Posted: Thu Apr 09, 2009 9:39 pm
by Mikie711
Thanks for the replies, got it sorted. The main lead captive nut had gotten lost along the way and I had used a normal M6 in it's place but the horns that keep the original nit in place prevented a socket from fully tightening the new nut. Cut off the horns, tightened it down all the way and the charge light went out

.