The Stovebolt Site Forums The Parking Lot '60-'66 Trucks Ignition problems- 305E V6

There are several options. I don't know which you can do. I think you are savvy enough to do what needs to be done.
First step:
1. We don't want to mess up the harness or add wires yet if we don't need to SO......... how many wires are on the "R" terminal on the starter? What color are they?
2. 5.6V with ignition to "on"? How did you hook up the meter leads? Where on the truck did you place the leads for the measurement?
3. What is the voltage at the starter "R" with ignition on?
FIY: The ignition switch has "Ignition on" position and a ignition "Start" position, which is a spring loaded position. Just so you know what I mean when I say "on"..... I don't mean start.

FYI: There is a big honking cable to the starter, you know that. There is one wire on the "S" terminal. We are interested in the "R" terminal right now. Let me know. A pic or two is nice.
It would be VERY helpful if you could figure out where the yellow and companion wire, that you have on the coil, goes. Does it look like someone did that or does it look factory? Don't think it's factory because yellow is so big. At any rate, it's not per 1966 wiring diagram. We will fix that.