YES loads like lights and ignition (if its a battery powered coil distributor ignition instead of a magneto) are fed off the VR's (L)oad terminal instead of the load side of the ammeter like if it were a 3 terminal VR without an L terminal. The GEN/ARM is usually the one on bottom or one side all by itself which wires to the gennys ARM post. Note, if you ignore the L terminal and feed ignition (if its a coil not a mag) from the load side of ammeter (or BAT on VR) it will still work
DO NOT WIRE IT LIKE DAD HAD IT, wire it as I described above for a 4 terminal VR.
You don't need to ask anyone about how or why it was polarized before, simply re polarize it so it matches your battery polarity BEFORE starting again. Had you changed polarity, you would need to swap ammeter and coil leads, but it sounds like youre stil at the original POS so the coil and ammeter should be fine. I just hope the VR is suitable for POS ground???
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Today's Featured Article - Oil Bath Air Filters - by Chris Pratt. Some of us grew up thinking that an air filter was a paper thing that allowed air to pass while trapping dirt particles of a particles of a certain size. What a surprise to open up your first old tractor's air filter case and find a can that appears to be filled with the scrap metal swept from around a machine shop metal lathe. To top that off, you have a cup with oil in it ("why would you want to lubricate your carburetor?"). On closer examination (and some reading in a AC D-14 service manual), I found out that this is a pretty ingenious method of cleaning the air in the tractor's intake tract.
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