gen light
Senior User
Joined: Jan 2006
Posts: 182
Likes: 0
From: Jane Lew, WV
If you converted to a standard Delco Alternator, you can use the light by connecting a wire from the light to a 12 volt source that is switched by the ignition "On" switch. The other side of the light goes to the terminal next to the "field" terminal on the alternator. That terminal has 12 volts on it when the alternator is charging. Since that would make 12 volts on both terminals of the light, it won't burn, indicating a charging system. If the alternator stops charging, the terminal goes to ground, completeing the circuit for the light, indicating a system that isn't charging. Simple but effective.
Bike
Bike
Lead Driver
Joined: Apr 2002
Posts: 8,813
Likes: 13
From: Littleton, New Hampshire
I did exactly that on my truck. I used a Delco 3-wire hookup and a voltmeter instead of an Ammeter in my dash so I wanted an additional flag in case the alternator stopped working. For some reason I just don't seem to pay as much attention to a voltmeter as an Ammeter. I picked up a red indicator light at my local parts house and installed it the dash where the choke used to be. It works great... 
Last edited by GreatNorthWoods; Oct 12, 2006 at 06:46 AM.
