Yellow wire in alt. circuit

[69rangerman]

So I should knife into the shunt rubber plug and try to find where the wire pulled loose or broke right? Then just repair if I can find it?

In the short term if I don't do anything am I just loosing ammeter function? Or does this affect charging of battery, or ignition?

Sorry I can't completely understand what you guys are referring to, but I do appreciate you working this over.

Thanks.

[fordman]

i would almost say to wait to mess with it until the truck is running again. if the ammeter works after you get it running tapei it back into the wiring and forget about it. if it doesn't work then hook it into the plug. if thats where it goes.

[69rangerman]

Thanks, don't care if the guage works for start up-just was hoping it didn't have anything to do with ignition switch or engine running.

Tom

[FORDification]

I was re-reading that old thread when it dawned on me that I didn't have a link anywhere on the Site Index or the Tech & Tutorials page to the ammeter research page that I was working on about a year ago. I just corrected that oversight by linking to it on both pages. There was a link to it in the thread, but unless someone was reading that thread they'd never know the ammeter page even existed.

[69rangerman]

For what it's worth here is a pic of what's inside the rubber "shunt" plug.

It's a pretty massive copperish crimp joining the big black, big black with yellow stripe, and a yellow. Honestly, I can' t see where the smaller yellow with the in line fuse would have gone. There dont appear to be any remnants of wiring where it might have broken from, and the crimp looks like it would hold through a cataclism!

I'll just tape it up again with the small yellow outside of the run, and maybe experiment with splicing it in after I get it running.

[kid]

The little yellow went in the end with most of the wires and though that crimp looks super tough we in the electrical world and Telecomm power world have had our rules changed because multiple wires bundled together under one single crimp edge tend to have the smaller wires slip out under the crimping pressure or abuse if they are only in contact with other wires. It went in between the Black and the big Yellow in your picture.

The fuses are 4 amp to protect the guage but I have mine at 5 amps as that was the only ATM fuse close to 4 that I could find in 3 stores.

#1 cause of electrical house fires is a wire that is not crimped together tight enough with the other wires causing a high resistance path like a toaster element until it burns.

[69rangerman]

Hey kid,
Can I just solder that back on? Does it need to be buried in the middle of all the others or just attached to any one of them? How/where would you attach it back?

Thanks

Tom

[kid]

Well I cut the piece apart and put all of them on ring termials to an insulated stand off. I put the drawing on one of my earler messages. I solder rarely except on real small stuff or copper Refrigerant lies. Large wires like in that bundle will suck up heat and melt the insulation before the solder ever took. That is also why Ford used a crimp connector, too hard to solder by hand and a long learning curve with a solder pot.

Any wire in that bundle will work.

[69rangerman]

Thanks kid,

One more question:

Before, in, or after the crimp...or does it matter?

Thanks again

[kid]

Does not matter.

[69rangerman]

Good deal...thanks for all the help.