61 f100 electrical problems
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61 f100 electrical problems
hey new member here, i just bought a 61 f100 with a 223 straight 6, on my drive back from when i bought it it died, generator went bad, so im trying to do an alternator swap, problem is the mook who owned it before me did some screwy stuff with the wiring, it was hooked up pos side as ground, im not sure how much stuff he wired backwards, all the wires are yellow and i cant seem to find an alternator conversion bracket anywhere, or a wiring diagram, could anyone help please?
Ford Parts Specialist
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From: Simi Valley, CA
223 was last used in 1964. First F100/350's with alternators = 1965. All but one of the cars also got alternators in 1965. Only the T-Bird had an alternator in 1963/64. But all these Birds were 390's.
Last edited by IB Tim; Jun 16, 2007 at 05:23 AM.
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Originally Posted by NumberDummy
223 was last used in 1964. First F100/350's with alternators = 1965. All but one of the cars also got alternators in 1965. Only the T-Bird had an alternator in 1963/64. But all these Birds were 390's.
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From: Fairbanks
clyde61 There are postitive grounded systems out there you really need to find a good wiring diagram and see what you have and how it is susposed to be wired. rewiring it is not that hard. just takes time. I dont have the info you need mine are 65's my 47 is a 6v positive ground though. but that does not help you out.
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From: Fairbanks
I found this on another web sight that was linked in the 47 and older sight was looking for something else and ran across it. If someone has a wiring diagram you should be able to rewire the truck your self and make it a negitive ground system. wish I could be more help
A word about positive ground versus negative ground is warranted. Ford always used internal ground fields, GM was always external ground fields. Either gen can be used for either positive or negative ground, provided you have the correct system polarity/correct field ground system regulator. That applies to either 6 or 12 volt. Current maximum of regulator can be set to match any generator size, so thats not an issue with substitution.
someone will probally be along tonight or tomorrow with the wiring info you need
here is a tech article about what you are trying to do with a one wire alt https://www.ford-trucks.com/article/...ord_Truck.html
here is a wiring diagram for a 64 i dont know if it will help or not
http://www.tocmp.com/tOCMP/wiring/1964F100/index.htm
A word about positive ground versus negative ground is warranted. Ford always used internal ground fields, GM was always external ground fields. Either gen can be used for either positive or negative ground, provided you have the correct system polarity/correct field ground system regulator. That applies to either 6 or 12 volt. Current maximum of regulator can be set to match any generator size, so thats not an issue with substitution.
someone will probally be along tonight or tomorrow with the wiring info you need
here is a tech article about what you are trying to do with a one wire alt https://www.ford-trucks.com/article/...ord_Truck.html
here is a wiring diagram for a 64 i dont know if it will help or not
http://www.tocmp.com/tOCMP/wiring/1964F100/index.htm
Last edited by frty7ford; Jun 16, 2007 at 03:07 AM.
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From: Simi Valley, CA
Originally Posted by clyde61
i understand you have alot of facts however that has no bearing on my point, the truck had a generator, however i am converting it to an alternator, im looking for a wiring diagram because the brain trust that owned it before me wired it up pos side neg and i think that was a majority of my problem
Last edited by NumberDummy; Jun 16, 2007 at 07:10 PM.
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Post Fiend
Joined: Sep 2006
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From: Island Southeast Alaska
I made a Alternator bracket from my gen bracket in about 10 minutes of welding and drilling on my Y Block if that helps. Also Napa and others have universal mounting kits.
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Post Fiend
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From: Glendale Arizona
I use a mid eighties internal regulated ford alternator for all my conversions. gets rid of all the extra junk and bypasses previous owners attempts at wiring the field and other wires.
I recommend you purchase a shop manual published by ford specifically for the 61 as it provides all the wiring diagrams you need.
It is almost as simple as using a one wire GM alternator.
Garbz
I recommend you purchase a shop manual published by ford specifically for the 61 as it provides all the wiring diagrams you need.
It is almost as simple as using a one wire GM alternator.
Garbz
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Another alternative might be to rewire the entire truck. Trying to repair or convert old brittle wires is a sure road to frustration. I used an American Autowire kit for my 66 and had no problems at all. The instructions are clear, the wires are marked along their entire length, and you end up with an entirely new electrical system. That's the way to go IMHO.