Sun 18 Dec 2011
This afternoon I tried to see if I could make the alternator charge by shorting the top field terminal to ground with a 5.6 ohm resistor. I placed a dvm on the battery and started the Dodge. It was not charging. Shorting the top field terminal to ground with the resistor did not make the dvm show a higher voltage. I tried a few more times. I even tried using a piece of wire. No change. After the last attempt the alternator started charging. But I don’t think it was due to me. I think it’s still intermittent. The one odd thing I noticed during these attempts is that the alternator got warm fast. Very warm for not charging and for only running for a minute or so. It occurred to me that it’s possible that the alternator is charging, but that the load is far too high and it just sags. Or maybe the diodes are weak and it sags. I also removed the wiring to the grid relays to kill any load but they didn’t clunk or anything, so I think they were not engaged. The next attempt I’ll bring my current clamp meter and see how much current is actually flowing. A warm alternator means current is flowing!