Rewiring questions
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Junior User
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Rewiring questions
So I have installed a 12v starter relay/solenoid in my 54 F100. All the original wiring is gone and I am installing new wiring, I'm in the process of ignition wiring and need to know if my 'I' side of relay and coil + need to be dropped from full batt voltage? I have direct wires ran now but can install inline resistors if need be.
The truck was originally 239 OHV V8 but now has a 1960 292 in its place with all 12v coil, generator, etc.
The truck was originally 239 OHV V8 but now has a 1960 292 in its place with all 12v coil, generator, etc.
Roast em' if you got 'em
Joined: Mar 2005
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From: Rio Rancho, NM
A typical points style distributor will have a ballast resistor in the ignition wiring. There is typically 2 circuits from the ignition switch; 1 that will supply 12V to the ignition when the key is in the "crank" position, and another that is routed through a ballast resistor dropping the voltage approx in half when the key is in the "run" position.
Good luck
Bobby
Good luck
Bobby
Fleet Mechanic
Joined: Apr 2012
Posts: 1,275
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The I wire from the soleniod to the coil remains 12 volt, if you used a coil that says, use with external resister, then yeah, you need one between it and the switch. If the coil says, use without external resister, then no resister is needed.
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It appears to be the stock type coil from the 60 292, has no resistor but unsure if missing one, all wiring is replaced so any factory inline ballasts, etc are gone, haven't found which points in the system should be full voltage and which should be reduced.
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