66 Valiant Electrical Issue?

You CAN make your old system work, if you have a fairly stock system with no heavy added loads, but probably the very first step is to inspect repair and replace some of the major problem points

Inspect, repair, or figure a "work around" for damaged terminals in the bulkhead connector

Inspect the ammeter for heat/ looseness/ damage.

If problems persist, untape the harness as mentioned and inspect the "welded splice"

Inspect and check the ignition switch connector, the fuse panel, and the headlight switch

Consider installing headlight relays, and you can even use a relay to run the ignition / regulator circuit, which will remove the load from much of the interior of the system

I did a partial rewire of my car, and used a relay box out of a 97? Voyager like this one:

It has relays and fuses enough (did require some rewiring underneath) for ignition/ regulator, fuel pump, headlights, and one for security.




Bussman also makes some nice ones, and other "wrecks" also use these