So, I replaced the copper wires with the spiral-wound wires last week, and also replaced the condenser and points in the distributor. I re-timed the distributor to #1 TDC, or just slightly after (as per the owner's man), and got the old girl fired off. I had to play around with the carb mix, as she didn't want to rev up, but kept backfiring and burbling through the oil-bath air filter. What a mess that made! I got it going though, and she sounded better and started faster than ever she did when we first got her.
Today I rebuilt the alternator, needing only to replace the regulator. I replaced the diode trio and brushes at the same time, just as a matter of course. Since I had the DVM out for checking the old rectifier and diode trio, I checked the coil's primary resistance. Hold on to your hats: 0.8 ohms!
By comparison, an old can-style coil from one of the Jeeps measured 1.5 ohms on the primary, and the resistor mounted to its bracket also measured 1.5 ohms. Combining them gives 3 ohms, which, at 12v, will net only 4 amps, whereas I'm pulling MORE than 12 amps through the points! Yikes, no wonder the condenser and points were trashed!
So, back in goes the old coil and resistor, and the admonition is reinforced: if it ain't broke, don't fix it. I was just trying to use what was on hand, fie on me for being a cheapskate. I've got the new plug wires, that should help, and with the alternator charging again (presumably; I haven't run the rebuilt unit yet), I'm off and mowing.
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Today's Featured Article - The Day Tractor Lovers Dream About - by Angus Crawford. The day started at five o'clock on the morning of Friday, the January 29, 1999. My father, my sister, my uncle, my cousin and myself all climbed into my uncle's Toyota van. It was six thirty in the morning and we had a long day ahead. We traveled for six and a half hours to our destination - a little country town with a population of no more then one hundred and fifty people (57 of them being children under the age of thirteen). We arrived hoping to meet up with a man we knew had over one
... [Read Article]
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