The joys of wiring....1965 c10 harness blues

[ray_mcavoy]

Originally Posted by Lugnutz65

That's what I would do. Ring connector on the starter end of the wire and an inline fuse.

I agree.

In addition to placing a 4A inline fuse in this black wire, I'd also recommend adding a second 4A inline fuse to the other leg of the ammeter wiring. One fuse is enough to protect against an overload due to a bad shunt connection (as I mentioned earlier) but a fuse in both wires will give full protection in case either side gets shorted to ground.

The other leg of the ammeter wiring is the black wire with a white stripe. It connects to the junction block on the horn relay (with a bunch of red wires) as shown in the diagram Lugnutz65 posted above. Locate the fuse close to the horn relay end of that wire.

[lha1992]

Originally Posted by ray_mcavoy

I agree.

In addition to placing a 4A inline fuse in this black wire, I'd also recommend adding a second 4A inline fuse to the other leg of the ammeter wiring. One fuse is enough to protect against an overload due to a bad shunt connection (as I mentioned earlier) but a fuse in both wires will give full protection in case either side gets shorted to ground.

The other leg of the ammeter wiring is the black wire with a white stripe. It connects to the junction block on the horn relay (with a bunch of red wires) as shown in the diagram Lugnutz65 posted above. Locate the fuse close to the horn relay end of that wire.

So you are saying place one on the wire that's listed B/W that goes to the horn relay from the ammeter?

My truck has had pretty bad hack jobs of PO's working on the wiring such as they put a volt meter in wired from some boxthing on the fire wall thatsn tied into the BAT terminal on the alternator that also feeds one of the spot lights. I'll get more pictures up in just a bit of it all.

[TJ's Chevy]

Ah the joys of wiring! Least some people here know how to do this stuff! LOL! When it comes to wiring for me..

[ray_mcavoy]

Originally Posted by lha1992

So you are saying place one on the wire that's listed B/W that goes to the horn relay from the ammeter?

Yes, that's the wire. I forgot to mention that the diagrams use the abbreviation "B/W" for black with white stripe but it looks like you figured that out

Originally Posted by lha1992

My truck has had pretty bad hack jobs of PO's working on the wiring such as they put a volt meter in wired from some boxthing on the fire wall thatsn tied into the BAT terminal on the alternator that also feeds one of the spot lights. I'll get more pictures up in just a bit of it all.

The fact that they added a volt meter is probably a good indication that the factory ammeter quit working. It could be as simple as that black wire no longer being connected to the starter solenoid BAT stud. But while you're working on the wiring, it would be a good idea to take a close look at the rest of the ammeter wiring (including the wires under the dash) just to make sure it's all in good condition and still connected as shown on the diagrams Lugnutz65 posted.

[Dillon Rock]

Heck man I should've given ya the wiring harness diagrams from my stash. I also have a new wiring harness sitting under the bench in the garage for the cab. All complete as far as I know. All I did was snag a fuse block clip for my radio spot and that's all I did to it. I'll let ya have it for nothing. No need for it on my part.