Im not sure Im smart enough to fix this one over the net. Bob M and I have cussed n discussed another NEW VR he bought that isnt working quite right either.
Scotty is right on the 4 terminals on the VR but its my guess where you typed A on VR to ammeter did you really mean BAT ??????????
If she was charging before and charges if you ground the gennys FLD post THAT TELLS ME THE GENNY ITSELF IS OKAY so it must be a VR or other wiring problem
Are the 3 terminals on top side by side on the VR labeled BAT (L)OAD and FLD ??????????
If so I still think the unmarked terminal on bottom is ARM/GEN and YES it wires to the gennys ARM post
MAKE SURE THE VR"S METAL FRAME HAS A GOOD GROUND maybe run a grounding jumper wire to it as she cant work right UNLESS THE VR IS WELL GROUNDED
YES that wirewound stick resistor on VR is the series Field resistor, it sort of takes the place of the resistor on a LHBD light switch.
With the VR theres NO LONGER any wire from FLD on Genny up to the light switch remember, you dont have such a wire correct???
I guess you surely Polarized the genny prior to start up right?? if a genny is at the wrong polarity it can damage a VR !!!!!!
On the ammeter the SUPPLY SIDE has but one wire to the battery often via a cable to where the big battery cable attaches to the starter switch. Its other LOAD SIDE wires to BAT on the VR... Yours that way???
You may not wanna hear this but if shes wired right???????? AND POLARIZED and charges ONLY with gennys FLD grounded THE VR SOUNDS BAD !!!!!!!! or the wires bad from FLD to VR FLD or the VR isnt well grounded
I hope Bob or Bob M or Jim can fix it, Im runnin outa smarts and I dont have all that many to begin with.......
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Today's Featured Article - Antique Tractor Wiring Basics - by Curtis von Fange. One of the most neglected parts of old tractors is the wiring. After sitting in the elements for half a century or more much equipment wiring has deteriorated to sparsely covered strands of copper or other metal. Plastic insulation has cracked, mice have eaten through the older clothed style coverings and the exposed wires have reacted to winter moisture and salts by turning blue and powdery. Terminal ends have corroded, rusted or just plain evaporated away. Aged wires not only keep an engin
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