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I'm at a loss myself. The only other thing that could have been tested would have been to leave the B+ disconnected and see is you had over 12 volts DC on it before it was hooked to the ammeter. That would have at least proved conclusivly that the rectifier/regulator was being damaged by the...

Good luck, I hope this works for you.

No, it shouldn't..I hope LOL With the way your alternator is wired, the center tap of the alternator is ground. Think of it in terms of your house wiring. Phase to Phase voltage in your house is 240 volts. Phase to Phase voltage of your alternator is 39 volts. Phase to "Neutral" in your...

Yes, I got a chance to look at them a bit while I was at work the other night. But unfortunately I have been too busy to do much of anything else lately. Apparently the old rectifier and regulator were build to handle that high of an AC voltage, and there is also the "red" wire to deal with...

yes, that would help out greatly. Or if you could point me in the direction of a PDF of the manual, or if you have one, upload it here as an attachment

I was just waiting for you to get the new regulator that you ordered. Your plan for hooking it up sounds good to me. I have no idea what the red wire might be for without seeing a print of the circuit, or if you could follow the wire and find where it goes for sure. I don't think it would be...

That would kind of make sense to me because when you turn the power on your battery is now energizing the circuits of the welder, and the regulator would then be ready to start charging the battery when ever you would start the engine. Since you are geting a short to ground, that regulator is...

How much of a spark are you getting? Just a little spark like it's charging a small capacitor, or a large spark like you are trying to weld with your battery? Without having ever seen the rectifier/regulator you are talking about I'm gonna take some guesses here. The regulator should have...

First thing is first get a good volt, ohm meter. You can not check the charging system with a test light. It will tell you nothing of any importance. The two leads coming from the front of the engine, I assume, would be the stator leads. If the engine is running, you should see an AC voltage...