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Old 03-17-2019, 06:50 AM   #8
Jim/GA
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Default Re: Dead Short - how do I find it?

Quote:
Originally Posted by Jacksonlll View Post

<snip>

With the key off, there should not be power across the coil. Chase that one. Both posts should be hot, but the coil is not drawing any current. It can't get hot.
Maybe, maybe not! It depends on how you wired the car. Ford's original wiring scheme has battery power supplied to the coil all the time, and the key switch interrupts the wire between coil and points. So if wired it per the original schematic, you turn the switch off and the coil still has voltage on it! (but you are correct, it should not get hot)

"Modern" car ignition wiring schemes usually put the key between the battery and the coil. But not Henry!

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