Thanks so much. I am missing the switch... I detailed the engine over the winter, and now I am having grounding problems. I was hoping this wire was my problem

The overdrive works intermittently, If I ground the switch at the dash it works all the time. If not it works sometimes. The car won't crank after it gets warm , and the negative cable gets hot when you hold the throttle in the starting position. As soon as the car cools it cranks fine. Also one of the turn signal indicator light comes on without the directional switch. And... the ammeter goes to the full pegged position. The generator is putting out 30 amps under load and 7.5v.

Is there a ground strap from the engine to the frame? I did not remove one and I don't see one in the wiring diagram?

I am trying to find out where a loose wire in my 47 Packard super custom 8 goes. The car has the electromatic clutch. There are 3 wires in the loom. Two of them are male push in connectors that go to the Clutch Control valve. The 3rd wire is about 9 inches much longer and has a round wire connector end. It seems to come from the Overdrive control relay. It is not a live wire so I assume it acts a ground for another circuit? Any ideas?

I detailed my 356 8 clipper engine,,, but I can't remember where the ground (positive) wire connects to? Does it go on the bolt that holds the air funnel for the oil breather? I am having intermittent problem with the starter not working. The positive ( ground ) lead gets hot when I attempt to crank.

Also is the original ground wire a 0 gauge cable or a ground strap?

Exactly correct. That fabric covered wire wears through and shorts. Also I tried for years to use a feeler gauge to set the points with little success. Finally bought a dwell meter, what a difference.

With the car and rotor off turn the key to the on position and use a stab light to see where you are loosing the power. You should have power at the coil lead then at the point connection and if the points are open power to the move able point but not the stationary side.

The only other idea is if the rotor height is incorrect and not touching the leads for the spark plug wires.

I can't tell you for sure where the power comes from, but the circuit is completed by grounding at the switch on the post and at the door button.

I have the same car and every time these lights fail it is due to a bad ground. The quick test is a Jumper wire from the POSITIVE post if the battery ( positive ground system) to the light fixture.

Thanks for the tips. I found the wiring diagram on this site and it shows all the relays. I will spend my Sunday tracing the wires and relays.

Over the winter my over drive stopped working. If I ground the switch under the dash, it works. Soon as I stop grounding the switch the OD disengages. Any Idea where to start looking? 1947 super clipper. With auto clutch