65 wiring question

Hi,
I am a new member and have searched the site looking for an answer to my wiring question and found some help but I still have a problem. I am replacing all the wiring and I am getting no power to anything in the dash. I got help here about connecting the black wire in the gauge harness to the + terminal of the starter relay so that was progress. The black/yellow wire that connects to the black wire in the gauge harness and goes through the loop for the ammeter is shorted to ground. I have removed the main disconnect for the headlight harness and it is still ground so I feel there is no problem under the hood. I have removed all fused in the fuse holder and it is still shorted. I have not removed the black wrapping on the cable bundle so I can visually see where the wire goes and I am looking for some guidance from the experts here. Any help will be appreciated and if I left out information please let me know. Thanks in advance.

bartl said:

Both ends of the ammeter circuit begin and terminate at the battery side of the starter solenoid, eventually. The "return" side splices into the alternator output wire on its way to the solenoid. It could be either side that is shorted. Do you have a wiring diagram?

http://www.hammar.dyndns.org/wiring/wiring1965.htm

Click to expand...

I purchased the 65 wiring diagrams from Mustangs Unlimited and for the most part they are correct. I have disconnected the headlight harness at the firewall to see if the short disappeared and it did not. The diagrams show wire #37 going from the alternator to the starter relay and that has been driving me nuts because no such thing exists. There are three wires in the alternator harness and no #37 to the relay. I have started removing connections under the dash to see if I can isolate the issue. The heavy black wire from the gauge feed goes through the ammeter loop and plugs into the heavy black wire with yellow tracer. That wire is in the under dash harness and is wrapped with black tape. I could start to cut the tape to follow the wire but if I can avoid that I will. I have removed fuses from the fuse block and the short is still there. Any suggestions would be greatful. Thanks for the help.

2+2GT said:

This diagram?

http://www.hammar.dyndns.org/~djhamma/wiring/1965/1965c.jpg

Before unwrapping anything, disconnect the firewall plugs, and see if the power is getting to the firewall, and whether it is shorting.

Click to expand...

I have disconnected the firewall connectors eliminating anything under the hood. I have removed fuses and unplugged the cables going up the steering column. I also disconnected the brake switch and it is still shorted. It is the heavy gauge black wire with the yellow tracer. Thank you for sending the link to the diagrams. One thing that started all this was the fact that I do not have any black/yellow wire connecting the alternator to the starting relay as depicted in the diagrams. I have pretty much given up using the diagrams for this wire, they were great for the instrument cluster and other connections but this saga of the black/yellow wire is a mystery. Any suggestions as to where this wire goes to, radio etc would be helpful. Thanks.

Thanks for the information. I will try to check the points you mentioned and post the results ASAP.