Posted by Sherman in Idaho [24.32.202.166] on Monday, April 29, 2013 at 00:55:43 :
In Reply to: altinator question ( charging ) posted by junkyardog [72.64.8.205] on Sunday, April 28, 2013 at 18:27:31 :
That would probably give you a rough idea, but you'd do just as well to turn on the headlights and see if they brighten up as you increase the engine speed above idle. If they're normal old headlight bulbs, with some experience you probably have a pretty good idea how bright they ought to be. If you want to load it down some more, turn the heater blower on high as well.