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By Jack Groat - 2 Years Ago
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I think my voltage regulator is hooked up incorrectly. Not charging even though gen and voltage regulator have been rebuilt. I bought a complete schematic off the internet but have discovered errors and I don't trust it. Searching the internet has been confusing.
Anybody have a image or just explain it in text. Should not be that hard.
Thanks
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By DryLakesRacer - 2 Years Ago
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Was it the schematic from Classiccarwiring.com ? I used their generator/regulator wiring a few times before going to an alternator and it was exactly the same color wire as my car. I was able to use the generator light for the alternator by the color coding and Powermaster instructions. Every color on their schematic has been identical to my stock Ford wiring.
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By Jack Groat - 2 Years Ago
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Yes it is classiccar wiring. The reason I say we found errors is that the horn would not blow. I was about to order a new horn relay when I decided to do a continuity test of the relay. I decided the relay was wired wrong (per the classic car diagram). I rewired it and now the horn works fine.
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By paul2748 - 2 Years Ago
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Based on my TBird wiring (which should be the same as a sedan
B = Two yellow (both from the main harness, may be two combined into one terminal)
F = Black with white tracer (or white end) From generator
A = Two yellow with black tracer (or black end) One from generator, the other from the main harness
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By blocky - 2 Years Ago
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i presume you are running a generator? if so sometimes after a rebuild you need to re polarize the generator
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By Saltshaker - 2 Years Ago
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I've attached the generator/regulator wiring diagram and schematic from the 1956 Ford Workshop Manual along with the colored diagram from ClassicsWiring. As Paul mentioned above, they both show two yellow wires, one from the regulator B terminal to the horn relay, and one to the dash and then on to the battery. A black wire with a white tracer runs from the regulator F terminal to the field terminal on the generator. Two yellow wires with black tracers run from the A terminal on the regulator. One goes to the generator light on the dash and the other goes to the armature terminal on the generator.
I've used the ClassicWiring diagram to sort out wiring problems on my 56 and I was impressed with all the circuits in it that weren't even shown in the WSM, however I did find one minor glitch in the CW drawing. I couldn't find a symbol for a yellow wire with a black tracer. I'll email them and see if I missed it, or they did.
Jack, I also added the horn relay wiring from the WSM and the CW already has it. They match so I'm not sure what caused your horn problem, but those types of things become easier to solve with the internal circuits shown on the CW diagram.
Don
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By montana ford man - 2 Years Ago
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i think blocky is right you need to polorize the generator as i recall you need to start the car and then use a small piece of wire touch the field wire to the armature wire it was a common practise back in the day
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By montana ford man - 2 Years Ago
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if it doesnt charge you need to polorize the generator
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By blocky - 2 Years Ago
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cheers
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By paul2748 - 2 Years Ago
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Not the correct way as far as I know. You touch the field wire to the battery terminal. Just a touch - spark ok
montana ford man (9/24/2022)
i think blocky is right you need to polorize the generator as i recall you need to start the car and then use a small piece of wire touch the field wire to the armature wire it was a common practise back in the day
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By paul2748 - 2 Years Ago
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Double post
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By Jack Groat - 2 Years Ago
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Thanks guys for all the info.
We are getting 14 volts at the generator which comes to the A terminal, but it is not getting to the battery. So, a new voltage regular is on order and fingers crossed, this will solve our problem.
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By Jack Groat - 2 Years Ago
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Replaced the voltage regulator and the problem is fixed!!
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