Re: Delco Alt. 1 wire to 3 wire

Posted by Jon Hagen on February 14, 2007 at 20:26:54 from (75.104.56.247):

In Reply to: Re: Delco Alt. 1 wire to 3 wire posted by Bob on February 14, 2007 at 15:57:47:

If you get an auto parts store replacement regulator plug($2), so you do not have a chance of shorting exposed regulator terminals to the alternator case, there is a 99% chance it will work with your existing regulator. I have not found one of Bob's one wire regulators that use an odd diode trio setup, but on the chance you have one,and it might not like having power supplied to the #1 regulator terminal, I would use the little idiot light inline in the #1 wire.
That little light bulb will only allow a fraction of an amp to flow to the alternator regulator #1 terminal and has little chance of causing any damage if the "one wire" regulator is one of those oddballs Bob talks about. A diode will allow quite a few amps to flow untill either the diode or the oddball alternator component fails. Another couple of pluses for the bulb is that it can serve as a visual charge indicator and is avalible at most any hardware,store, auto parts store, farm store.

I just installed a one wire alternator I had on the shelf on a project where we needed a working charge light, With the wiring connected as in Bob's drawing, it works exactly like a standard"three wire" alternator. It excites at idle and the charge light works as intended.
The instruction sheet that came with my last box of "one wire" regulators said that if the alternators excite speed was too high or if the project needed a charge light, that it was OK to install the wiring as in a stock 3 wire system.

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