Hi Everyone, We are having a battery-charging problem with our Ford 8N that was converted to 12 volts some time ago. The alternator that is part of this conversion is a Delco-Remy 10si. The battery does not seem to be charged by the tractor when the tractor is running. Eventually, when the battery is depleted, the tractor abruptly stalls. If I pull the battery out and charge it back up in the barn with my battery charger, I can again use the tractor for about an hour until, once again, the battery runs dry and the tractor stalls. This isn’t turning out to be a very efficient way of cutting the hay…. When the battery is fully charged, my multimeter reads 12.4 volts at the battery. When the tractor is running, I get 13.3 volts both at that output screw on the back of the alternator, and at the battery. This 13.3 volts doesn’t really seem to change very much with changing the rpm of the tractor engine (although my testing in this regard is a little limited since the engine is not running very smoothly at all lately — a separate problem). I pulled the alternator and took it down to my local auto parts store for testing — I was told there is nothing wrong with it. If anyone has any ideas about what might be going on, or any suggestions about how to work towards a diagnosis, the help would be greatly appreciated. Chaz and Razz
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