I thought most (all)of the GM alts, at least what they call the 10SI series(3wire) had built in regulators. That's what the "SI" stood for. I guess some folks leave the old regulator on but the wires going to it might not be wired into the charging system.
I believe the one wire alternators are 10SI units that are changed internally so that they are self exciting. Most tractors have to be rev'ed up pretty good to make them start charging. Once that is done they will still charge even at idle until the engine is shut down.
I personally like the 3 wire which is in reality only a '2 wire'.One to excite and the larger terminal to the battery circuit.
For a 1 wire use the smallest pulley possible to make the alt spin as fast as is practical.
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Today's Featured Article - On the Road with Dave Gohl: Auction Musings - by Dave Gohl. I was thinking the other day about all the auctions I've been to in the last few years. There've been many. Some have been very good, some have been well, disappointing to say the least. But no matter how good or bad auctions may be, we always seem to stay until the item we've come for or are interested in is on the block. I've been to some auctions near and far. I think the furthest has been the Two Cylinder 7 in the Amana Colonies last year. Lots of stuff, lots of people. I've also atten
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