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Roger_67MG
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I just received my new Lucas BLB101 coil for my '67 MG Midget 1275 with positive ground. The old coil and wiring diagrams are causing me a bit of confusion.
The old coil, which turns out to be Bosch, has one terminal 1 and -, the other terminal is + and 15. The diagram notes SW and maybe CB (it is hard to read) for the terminals. The new Lucas is marked + and -.
The diagram traces SW via a white wire to eventually the ignition switch (with a routing through the tach). The other wire connected to "CB" (or whatever it is) go via white/black wire to the distributor.
But, is SW + or -? Is "CB" the other, or is it a duck?
Does anybody know??
The old coil, which turns out to be Bosch, has one terminal 1 and -, the other terminal is + and 15. The diagram notes SW and maybe CB (it is hard to read) for the terminals. The new Lucas is marked + and -.
The diagram traces SW via a white wire to eventually the ignition switch (with a routing through the tach). The other wire connected to "CB" (or whatever it is) go via white/black wire to the distributor.
But, is SW + or -? Is "CB" the other, or is it a duck?
Does anybody know??