Re: 8 VOLT BATTERY

Posted by HH56 On 2011/10/10 17:17:44

I threw in the picture of the switch to help locate the terminals while you are wedged under the dash. The bulb on switch lights when the headlight switch is in the parking light position only. I guess they figured the courtesy lights were not enough light to help find the switch at night.

The BAT and OIL light gets one side of their power via a short wire between bulbs and the GA terminal. Ultimately from battery via AM input on ign switch and main feed which connects at starter solenoid terminal. The other side of OIL gets ground thru the sender and lights if no pressure. The BAT light connects to voltage regulator "A" terminal which goes to generator "A" and then via the armature and field windings to ground. As long as the generator is not putting voltage out, the light will be on but as soon as the generator starts putting out voltage, it will match or exceed the battery voltage and with no voltage difference across the bulb, go out. As long as the new loom is correct, to have it on with the key off means either the ign switch is bad or one of the other wires connected to that same GA post is getting a voltage from somewhere. Is the OIL light on or maybe burned out? If properly wired, it should also be lit if ign switch is bad or something in that area shorted. Since GA and AM are close together, with bulky wire, it is even possible the ign switch terminals are shorted with a wire touching another terminal--