6 volt alternator.

josh1331

Senior Member
Anyone know if there is a complete kit to purchase for changing over to 6 volt alternator and removing generator? And who might vendor be. Thanks
 
Probably not. On my 37 engine I had to replace the intake manifold with a later model to use a GM cheap alternator. There are those out there replacing the guts of your generator with an alternator although be prepared to pay $600+ for that service.
 
Check with Summit. They have "Powermaster" 6V alternators listed. A little expensive, however.
 
I had a 6 volt alternator made from a aguy in Some magagzine. He used the front of a 48 FORD Gen and adapted a 12 volt alternator 1 wire and convered to 6 volt. Works super and you use same bracket and fan belt.
 
Be sure the ALT unit or kit has an internal voltage regulator. Remove and by-pass your original Voltage Regulator box. Don't short-change your system - use 8 guage wire for supply. One-wire type/arrangement may be easier to hook up but three-wire type better for sensing system voltage use/drop. Use a voltage guage instead of amp guage. Dan
 
Yes , I have not done it YET!!! but I know that it is done. What it takes to do it. & I hope someone will Chime in how to acomplish it.
 
Is it possible to make an alternator positive ground?

YES you have to reverse the polarity of the diodes by the way they are mounted. Easier to buy reverse polarity diodes or replace the entire bridge rectifier which is the complete diode assembly. it's easy to convert a GM 12 to 6 volt POS ground, it takes all stock parts. If making a 6 volt alternator from a GM alternator you should also use a 24 volt stator so it charges at idle speeds with a stock old Ford pulley. I made 7 alternators for my own use using Nippendso small 12 volt alternators inside the 39 Ford generator shells. I mounted the rectifiers and adjustable voltage regulator on the inside of the rear brush holder cap as a plug in assembly. I made 2 extra cap assemblies for spares if I ever had a problem but never needed them after 10,000 miles. I even made an alternator/generator test machine to run load tests on them. I can't locate the pictures right now but will take some more and open a new topic later. G.M.
 
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