Exciter Wire?

[AT3-]

I just sold a 66 f100 and bought a 76. The 66 was running and everything worked, but the 76 I got has had the wiring harness cut up. Its not charging. I've read that the ext regulator needs a alt light circuit to start charging. This truck has an ammeter, but no light. I've gotta get the exciter circuit to the I terminal so it will turn on the reg. Any ideas on the way to fabricate this circuit from scratch? I've got wire, a bulb & holder, but I don't want to fry the reg.

[Nitekruizer]

This diagrams shows the regulator circuit for trucks with an ammeter (top). The "I" terminal isn't used. I hope this helps.

[AT3-]

Thanks Buddy, I appreciate your help. This truck has been rewired and everything's a mess.

The ammeter has two wires coming from it through the instrument panel, a Red/Orange and a Yellow/Black. These wires go through the firewall to the relay area on the pass right fender, and then aren't hooked to anything.

Theres a White/Black wire that has a fusible link but doesn't go anywhere, one side goes to a plug by the firewall on the back of the passenger side of the engine and the other side ends after the fusible link, by the relay.

When i first started trying to put it back in order I hooked the Red/Green to the I terminal on the reg. It made the regulator smoke so I left the I terminal alone. I've currently got from the Alternator like this,

Battery going to the relay. Field going to F on the reg, and Stator going to S on the reg. The A term on the reg goes to the relay.

I was lucky with the '66 I had before, it was intact, like the last owner just parked it and forgot about it. This '76 has been tinkered with by several owners I think. I'm gonna work on it with your diagram as a guide. Thank you.

[Max216]

Hello, does anybody know exactly where the exciter wire gets hooked up to on the ignition switch?
I hooked it up to the red wire off the switch, but I'm having the same issue - truck continues to run after I turn the Ign. switch off.
If I put a diode in the exciter wire connection will it take care of this problem?

Also, On this Forum I can't seem to post a new topic. When I go to the FAQ section it states, choose the "New Topic" but with no explanation of where it is located. I searched the home page I don't see any where to post a new topic. I'd appreciate some help if anyone knows.

Thanks!!

[Max216]

I'm having the same problem on my 65 F100.
So it looks like the exciter wire is wired to the ignition switch accessory terminal, with a bulb looped in the circuit?
Or, does that bulb in the diagram represent the Alternator charging light bulb?

Thanks

[Max216]

Duck Ryder replied, "go to the proper forum and the new topic button is at the top of the forum, under the title and next to “search this forum”.

If there are subforums (like in engine) it is below the subforums"

Apparently, I'm unable to reply directly from my mail box (no reply button) so I'm posting here, it is the only place that allows me to post.
Question? what does "proper forum" mean? I thought this is the specific (proper) forum for Ford Trucks 67-72? What would be another "proper forum" otherwise?

"proper forum" "sub-forums" ... huh?

Thanx, Paul

[DuckRyder]

Duck Ryder replied, "go to the proper forum and the new topic button is at the top of the forum, under the title and next to “search this forum”.

If there are subforums (like in engine) it is below the subforums"

Apparently, I'm unable to reply directly from my mail box (no reply button) so I'm posting here, it is the only place that allows me to post.
Question? what does "proper forum" mean? I thought this is the specific (proper) forum for Ford Trucks 67-72? What would be another "proper forum" otherwise?

"proper forum" "sub-forums" ... huh?

Thanx, Paul

I feel quite sure you have a “send reply” button in your private message box.

“proper forum” means the category or forum that fits the topic, in this case “Electrical & Wiring”

“subforms means” any other linked forums that show at the top, in this case “FAQs”, “Archives” and “Links”.

BTW, it is considered very bad manners to post the contents of a private message on an open forum.

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[DuckRyder]

So does that work for you?

[Nitekruizer]

I'm having the same problem on my 65 F100.
So it looks like the exciter wire is wired to the ignition switch accessory terminal, with a bulb looped in the circuit?
Or, does that bulb in the diagram represent the Alternator charging light bulb?

Thanks

Yes, that is the ALTernator light.