Quote:
Originally Posted by OregonNed
I've been working on some under hood projects, which included some rewiring of cobbled up leads by the previous owner(s). First of all, the truck runs fine - but in looking at the positive coil lead, the wire from there that is tapped into the wire going to the solenoid, (not original wiring, by the way) - ends up bypassing the top firewall wiring plug, (its cut off flush) and instead goes into the firewall and is plugged into an ignition unfused spade. This doesn't appear correct by the wiring diagram I have at all. Can it be a problem waiting to happen?
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That wire is fed by an ignition on source, normally from the key switch. It should be a pink wire that runs from the key switch ignition terminal to the inside of the firewall block behind the fuse panel.
It sounds to me like someone might have installed an HEI distributor and was going to use that terminal and cut off the ignition resistance wire that goes there. In any case the wire that you have now if it was on the firewall block by the master cylinder has been rerouted to the fuse panel. The IGN Unfused terminal is a key on power source and should work just fine for the alternate coil ignition source.
You have to be sure it has the resistance wire incorporated or it will burn up your points and maybe the ignition coil. If it is not the resistance wire, you can install a ballast resistor 1.8 ohms, in series with the wire, and it will serve the same purpose.