Wiring Help Upgrading to 1 wire Alt

[73pony]

OK. I am not good at reading and understanding wire diagrams. The pic below is of the wiring instructions. I need help identifying which wire in the car is the power supply to fuse box from under the hood. Thanks in advance.

 

[Don C]

This thread has additional diagrams and discussions about alternators. The latest version of the diagram is in post #5
The diagrams also include a single wire diagram.
https://7173mustangs.com/threads/alternator-and-regulator-wiring.40107/#post-409306

 

[73pony]

I only see the 3g diagram along with the stock with and without gauges. This is a one wire install.

Link to the alternator.

https://www.cvfracing.com/ford-1-wire-alternator-140-amp-black/

 

[Hemikiller]

The heavy Yellow wire in the engine bay harness feeds the fuse block. It will be attached to the front stud of the starter solenoid.

 

[Paul M]

Yep, you won't want to run a wire all the way to the fuse block. You have 2 sources to use for your B+ the wire Hemi killer mentioned or the junction block that your original alternator harness went to. It's big black wire w/a orange stripe. Mine was on a 73. As far as the the rest, there's still the source voltage whether or not you have the gauges or not. One follows through the ammeter the other had a idiot light.

 

[73pony]

Perfect. Thank you. I was thinking it was the yellow wire.

 

[RIBS]

That seems to be related to a Painless wiring harness, I have never seen a split/loop like that…