Tom F OHIO
Well-known member
If I would buy an alternator that looks like a generator for a 6 volt positive ground system would the amp gauge in the dash still work . Thanks...
Alternator
- Thread starter Tom F OHIO
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hueyhoolihan
Well-known member
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hueyhoolihan
Well-known member
i created a thread the other day that is related. let us know if you find one, IME, they are as rare as hen's teeth. although it would seem as though it would be a popular item for the vintage car crowd.
i was looking at this one for a project i'm working on...
https://www.speedwaymotors.com/Powe...439&gbraid=0AAAAAD8-McnL-Y0Mx8uuMTtUks5ejJVzb
petehoovie
Well-known member
Tom F OHIO
Well-known member
Huey, the one that I was looking at on Speedway Motors was # 82026 and then I would
have to change the pulley from 5/8 to 3/8. What do you think.
have to change the pulley from 5/8 to 3/8. What do you think.
Tom F OHIO
Well-known member
I'm pretty new to the V8 site. So, if there is a better place to get one, I would sure appreciate the input. Thanks Tom...
hueyhoolihan
Well-known member
it's my understanding that many modern alternators have built-in solid-state voltage regulators built into them. so careful installation, following the instructions would be necessary. hopefully, 6v positive ground alternators (is the plural even necessary? ha) specifically designed for use on vintage cars and their installation instructions would address pulley size and potential conflicts with the car's standard voltage regulator.
i my perfect world the alternator would have the same number of wires coming out the back so as to plug directly into my vintage car's wiring harness/voltage-regulator, but from a manufacturing POV i don't know if that's practicable. research is key, i think i would make it my business to contact the manufacturer or retailer directly so as to be fully informed.
sergeant to private, "so now, soldier. we think there's a mine field out there, so fix your bayonet and over the top when the whistle sounds and let us know if there's one out there or not!"
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expavr
Well-known member
The E.J. Whitney Company in Fullerton, CA sells a 6V positive ground 40 amp alternator in an OEM generator housing. https://www.ejwhitneyco.com/automotive.html
Its a tad pricey, but you never have to worry about dim lights and it looks like it belongs on a vintage Ford engine. I’ve had the Whitney alternator on the Tonner for several years. At the time I bought mine you had to provide a core.
ScottEllen
New member
My works just fine with the 6 volt positive ground alternator
Zax40
Well-known member
I emailed them last month. The owner is having health issues and they are transitioning to the son taking over so it may be a while before they are able to start the conversions back up
tubman
Well-known member
There's a couple of videos on YouTube that show how to convert a GM 1-wire alternator to 6 volts positive ground for a Model-A. It should work just fine on a flathead as well. The main component is a 6 volt solid state regulator that bolts right in and is readily available (Amazon) for about $20. If you don't mind how it looks, those alternators are pretty cheap at swap meets.
Tom F OHIO
Well-known member
Scott, is yours a one wire hook up to the alternator?