My ‘52 3100 with ‘59 235 has a non resistor coil with a resistor mounted on firewall and a starter switch that has a 12v side terminal, that supplies a full 12 volts to the coil when starting. Once running that circuit disconnects and ithe. Oil is now powered thru the resistor circuit which drops the voltage to about 9 volts, so you don’t burn out you points.

When the industry went to 12 volt systems, this is the way they were installed by the factory.

Bottom line is I get full voltage to help start the truck then reduced voltage to help save the points.


Phil
Moderator, The Engine Shop, Interiors and Project Journals

1952 Chevrolet 3100, Three on the Tree, 4:11 torque tube
Updated to: ‘59 235 w/hydraulic lifters, 12v w/alternator, HEI, PCV and Power front Disc Brakes
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