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Distributor/Coil Wiring 
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On the Road

Joined: Tue Jun 17, 2008 9:11 pm
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Post Distributor/Coil Wiring
I think I've made a booboo :oops: My car has an MG Metro 1275 with 65DM4 distributor. The coil has a white wire on the + and a white/black one on the -, which I understand is the earth side. The lead from the coil to the distributor has a green wire which is connected to the - on the coil and a thinner black one which is connected to the +. That's how it is at the moment but I'm guessing that the black wire from the dizzy is the earth and should be connected to the - on the coil. Is that correct? The diagrams in my Haynes manual aren't very clear and focus more on the points type of dizzy. Thanks.

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Mon Nov 02, 2015 7:29 pm
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Looking like a GTM

Joined: Fri Aug 15, 2014 4:49 pm
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GTM: Cox/Coupe
Post Re: Distributor/Coil Wiring
So what exactly is it that are you trying to do? are you changing to an electronic distributor?


Mon Nov 02, 2015 9:02 pm
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On the Road

Joined: Tue Jun 17, 2008 9:11 pm
Posts: 671
Post Re: Distributor/Coil Wiring
I'm replacing the existing electronic distributor which has tired advance springs with a brand new one of the same type and when I'm at it I thought that I would also fit a new coil of the correct spec because I don't know much about the Bestek one that's on it. I was noting which wires went where on the coil when it occurred to me that it looked as if the wires are the wrong way round. A new lead from Mini Sport or Mini Spares has white and black /white wires which match the rest of the loom but the lead I have, which came with the car and presumably came from the donor MG Metro, has green and black wires so I'm trying to confirm which one goes where. I suspect that the black wire is the earth and if so should it go to the negative on the coil?

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Mon Nov 02, 2015 9:25 pm
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