Thread: Ignition wiring
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03-02-2007 03:41 PM #1
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Ignition wiring
ok, here's my dileima, I'm putting on a MSD 6 BTM box on my '67 Falcon, using a factory DSII distributor and a 8869 harness for the DSII- MSD connector ( plugs into the factory distributor plug ). that's the easy part. next part is, I need a 12v switched source, and I know my coil wire is my best bet, but it's a resistor wire, and when I checked it, produced 7.2V at idle ( I was having an intermittent problem with the bypass circut, so it wouldn't start, no need for a bypass ne more, so I'm not worried ), not enough for the MSD I don't belive. now, I know that I have to splice b4 the resistor wire, or run a new wire off the ign switch, but... which wire is it? I had every wiring diagram I needed ( even tho it was for a Mustang, Falcon and Mustang harnesses, are the same ) on my computer, but IDK where I put them. I kno I could go the easy way out and get a relay that will act on the low voltage, and wire it in that way but, that's cheap.Last edited by Matt167; 03-02-2007 at 03:44 PM.
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Matt's 1951 Chevy Fleetline- Driver
1967 Ford Falcon- Sold
1930's styled hand built ratrod project
1974 Volkswagen Super Beetle Wolfsburg Edition- sold
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03-02-2007 06:01 PM #2
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Just take your test meter, and see which wire on the switch is hot in the run position, connect your new wire to that terminal......Yesterday is history, tomorrow is a mystery, Live for Today!
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03-05-2007 10:50 PM #3
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make sure its also hot during cranking or youll still have starting issues.
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03-06-2007 03:15 AM #4
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I could fix and connect the original bypass to the MSD box switched wire, if it wasn't hot on cranking
Originally Posted by Gearhead559
make sure its also hot during cranking or youll still have starting issues.You don't know what you've got til it's gone
Matt's 1951 Chevy Fleetline- Driver
1967 Ford Falcon- Sold
1930's styled hand built ratrod project
1974 Volkswagen Super Beetle Wolfsburg Edition- sold
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03-06-2007 06:50 AM #5
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Matt, I'll PM you a copy of a 66 Mustang wiring diagram as soon as I get out to the garage.Ken Thomas
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