Alternator Wiring

Mikie711 · Post by **Mikie711** » Sun Apr 05, 2009 1:58 pm

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.

tut · Post by **tut** » Sun Apr 05, 2009 3:56 pm

Long time ago since mine burnt through Mike, but are not the two connectors of different width?

tut

Will ing · Post by **Will ing** » Sun Apr 05, 2009 5:18 pm

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

Mikie711 · Post by **Mikie711** » Sun Apr 05, 2009 5:46 pm

Both the studs are the same thread, and one wire is thicker than the other. Just can't remember which way round they go.

Will ing · Post by **Will ing** » Sun Apr 05, 2009 7:01 pm

....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

Mikie711 · Post by **Mikie711** » Sun Apr 05, 2009 7:09 pm

Ones a large gauge brown wire that comes from the starter, not sure about the smaller think it's brown and yellow.

Will ing · Post by **Will ing** » Sun Apr 05, 2009 7:50 pm

I'll call you

Will ing · Post by **Will ing** » Sun Apr 05, 2009 8:07 pm

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

Mikie711 · Post by **Mikie711** » Sun Apr 05, 2009 9:15 pm

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.

Gourlay83 · Post by **Gourlay83** » Thu Apr 09, 2009 6:35 pm

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

Mikie711 · Post by **Mikie711** » Thu Apr 09, 2009 9:39 pm

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

.

Scottish Elises

Alternator Wiring

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