Posted by LJD on November 11, 2011 at 07:59:33 from (72.171.0.146):
In Reply to: Heres my best guess posted by John T on November 11, 2011 at 06:06:33:
Read down for the "car model" stuff.
The concept of "potential" voltage versus "actual" voltage to fire a spark plug is not foreign to me. A clean plug gapped at .025" in a combustion chamber with correct air-fuel ratio might only need around 8000 volts to fire. Add another 2000 volts if there is a distributor-rotor to arc across. Add some high-resistance wires and/or plugs and the need goes up.
But - I still can't figure . . . if the spark path is basically in series with two spark plugs - how can one can fire and one fail to fire. I'm having trouble wrapping my brain around it. If one does NOT fire, there is no known path to ground, correct? Maybe they both DO fire, but one is so weak that cylinder will not perform? I'd buy that if just one cylinder had this problem, but that is not the case.
Electricity probably flows in one direction, yet it has never really been proven. Thus the "Hole Theory" and the "Electron Theory." We figure it's moving and we put labels and tell stories about it. Modern circuits and solid-state components are built on "predicted" behavior of those mysterious electrons. And gravity pulls on us with "gravitons". . . another unproven mystery. And as we now, not all matter suffers from good-old Newtonian gravity.
I still remain a bit stumped.
In regard to the electrical engineering forum, many are citing long forumlas based on theory but in essence - nobody has come up with anything that hasn't been posited here. The guy on that forum has the same problem as me, but his is with a 2CV Citroen car (the longest lived car model in the world last I checked). But "long lived" is defined in different ways. Citroen 2CV was made for 42 years without huge changes. But, some argue that Chevrolet has made the Corvette for 58 years. I DO recall that GM ended it's production a few years back -but then quickly reversed that decision. Either way, today's Corvette isn't much like the 6 cylinder version of 1953. Then the Volks Beetle? Volkswagen brags about 71 years - but that seems "iffy" to me. Certainly isn't air-cooled anymore. Some claim that the Morgan 4/4 breaks all records. 75 years and still being made with one short break during one or two years. Oh well, seems I've gone off the topic.
In regard to charging your deep-cycle batteries with a standard charger with slightly less voltage? I know many people who have done it for years with no ill-effects. Just means your RV batteries never reach their absolute maximum charge. Maybe 98 % instead of 100 %.
"Equalization" seems to be the most important battery maintenance issue -going by what battery makers claim. It means little if all you have is a few batteries. But, if you have a large bank with 6,8, 10 batteries or more - it takes a huge charger to put out the amps to "equalize" or "over-volt" those batteries. My Trace charger that's built into my 2000 watt inverter has a 120 amp at 15 volt charge capacity. That's pretty big.
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