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Robert..... ...there are "obscure" technical reasons for "positive ground". Its called the "Edison Effect" (and is the reason yer computer TV screen works) named after Henry Ford's friend Thomas Edison. I've explained this effect many times, its in the archives. Has to do with metalic atoms being ionized under heat and pressure and electrical voltage causing transferance and errosion. Personally, with Henry Ford's love of LAWYERS, I always thought it was Henry's way to keep from paying General Motors patent license fees. A better question to ask is "Why 6-volts?". It was the smallest cheapest battery that General Motors could find to reliablily crank their Caddilac's new electric starter motor that they developed. As for yer current situation, your "incorrect" negative ground could cost you upto -40% of yer sparkies and hard starting and missing. Fortunately, yer sparkies have excess capacity to allow for normal wear and may not notice yer weak sparkies (yet). You can change yer battery's flat ground braid cable to positive (+) ground ...IF... you "re-polarize" yer voltage regulator and generator correctly. You can re-polarize as many times as you think you need to for what ever reason, correctly done, doesn't hurt a thing. ADVISEMENT: 12v alternators internal solid state guttz DEMAND negative ground. Old fashioned gennys don't care as long as they are correctly polarized to match the battery. Since yer stater motor don't care positive or negative ground; and yer battery don't care, positive or negative ground; and yer genny don't care positive or negative ground as long as yer voltage regulator is properly polarized by yer battery; and amazingly enuff, even yer center reading ampmeter don't care positive or negative ground ...ONLY YOU semi-care... because you've been "trained" to watch the ampmeter indicate (+) when the genny is charging the battery. And iff'n you replace yer "loop" ampmeter with a 2-terminal ampmeter, and iff'n yer ampmeter reads incorrect charge polarity, just swap yer ampmeter leads so yer ampmeter indicates (+) when charging. Simple, eh? Iff'n you need help about the concept and proceedure for "re-polarizing" yer electrical system, we need to know wheather you've gottta 1-wire 9N/2N genny with roundcan cut-off relay under yer battery tray ...or... iff'n you have a 3-wire genny and squarecan voltage regulator 8N..... ....respectfully, Dell who is full off-itt
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