Ballast resistor wiring

[Stevehose]

I see from the wiring diagram that the positive side of the coil is fed by 2 wires - one from the starter (black/red) during cranking and another from what appears to be from one of the speed relays (green feeding the resistor, blue/red from the resistor to the coil). I can't see from the diagram where the current comes from to feed the relay before going on to the ballast resistor. I want to eliminate the relays entirely and wire directly but can't figure this out. Any experts out there with an explanation? TIA.

 

[Ohmess]

Hi Steve - I have my wiring diagram in front of me; power for the speed relay comes off a junction at the ballast resistor, through a connector plug and off the powered side of fuse number 6. The speed relay and solenoid valves are all powered from this same wire. The diagram shows a connector between the ballast resistor and the speed replays which not only includes the power wire, but also includes the ground and the wire running to the number 1 terminal on the coil. It looks like you can disconnect this connector and pull the entire circuit including the solenoids if you like.

 

[Stevehose]

My wiring diagram (1972) only shows one green wire at the ballast resistor but in reality like you said there are two - one to feed the speed relays and one delivering 12v to the ballast. I see that I had already removed the wire harness from the speed relays so obviously they have no effect on ignition.

What I did realize is that I had confused which side of the ballast resistor has the lower voltage - it is the side with the blue/red wire not the double green wires (obvious now from my newfound understanding of the diagram). I had been running my fuel pump and 123 Ignition off of the resisted side (11.25v) instead of the full side (12.5v) which I had intended to do - doh!! Now all corrected and distributor and fuel pump getting full voltage.

Sometimes it's good to check this **** out from time to time to verify correct wiring!

Hi Steve - I have my wiring diagram in front of me; power for the speed relay comes off a junction at the ballast resistor, through a connector plug and off the powered side of fuse number 6. The speed relay and solenoid valves are all powered from this same wire. The diagram shows a connector between the ballast resistor and the speed replays which not only includes the power wire, but also includes the ground and the wire running to the number 1 terminal on the coil. It looks like you can disconnect this connector and pull the entire circuit including the solenoids if you like.