Re: lazy charging system
The easiest and quickest is probably to take your alternator to a parts store that can test them. Have them explain to you what their doing every step of the way, so you can figure out if THEY know what they're doing! Some background info:Years ago, General Motors Delco alternators had a spot on the back or side of them that you could stick a screwdriver into to "full field" them for troubleshooting. The screwdriver would short to ground part of the field winding circuit (taking the regulator circuits out of the picture) and run full field current on the alternator. With full field, the alternator would make as much power as it was capable of at that shaft RPM. So voltage should go up, lights get brighter, and engine load down a bit more. At that time, FORD didn't have anything handy like that. Somewhere, I remember reading about that again in relation to FORD. You might want to see if you have one. It was obvious... a tab sticking out at the bottom of a cutout. Not like poking a screwdriver through a vent slot or anything like that. By the way, working voltage for lead-acid battery cells is 1.85 v at the bottom of charge, 2.2 v at the top. Measured with a good voltmeter, after the battery has "rested" (say 1/2 to 1 hour no current in our out). Multiply per-cell voltage times 6 for the standard 6-cell 12v battery. Also, good charging voltage on a fully-charged battery is roughly 2.35v per cell. I wondered... with all of the lights you've got, Jim, can they see you from the Space Shuttle? Hope this helped, UncleDon.