Skip to main content

I just finished installing a complete set of autometer gauges. I read in a previous question that if the 'ignition' light bulb is pulled out of the tach that since it is a part of the alternator field circuit that disconecting the bulb socket causes the alternator not to charge. Is this true? How do I rectify this problem due to the addition of these new gauges? Should I plug the wiring harness of the tach and speedo back into their existing sockets and leave the wires hanging? The new gauges have new wiring. I haven't tackled the new wiring. Any suggestions? Dr. Alex
Original Post
Simply ground the bulb socket, whether the light is visible or not, and your alternator will work again. Taking the bulb out will open the alternator field circuit & cause no charging, too. Weird charging circuit wiring is a Lucas trademark- Triumph & other mid-60s motorcycles have the ignition ground hooked through the tail light circuit, so if the light filament breaks, the engine quits!
Post
×
×
×
×
Link copied to your clipboard.
×