Original gauges.. can I use a 12 volt bulb? - Tue Jul 20 2021 04:33 AM
Hi All,
Using the original speedometer and gauges, can I use a 12v bulb for lighting? OR MUST it be a 6 volt bulb? I am getting into an area of little expertise. :/ Thinking out loud, I put a 292 in it.. let's see:
A. Theres the water temp gauge.. I dont think that uses electric.. just a metal or copper wire to the engine? (right pic)
B. Oil pressure.. I am not sure if the uses electric.. just a metal or copper wire going to the engine.. I guess a sensor on the 292 connects to that? (left pic)
C. Gas gauge, I guess the sending unit in the tank (12v) but there are 2 insulated electric wires on the back of the gas gauge - electric but not exactly sure what for.. (right pic)
D. AMP gauge has two bolts and studs on it.. but not sure how that hooks up.. (left pic)
E. I *thought* 12v bulbs work with 12v system.. or am I missing something in regards to the gauge housing?


Using the original speedometer and gauges, can I use a 12v bulb for lighting? OR MUST it be a 6 volt bulb? I am getting into an area of little expertise. :/ Thinking out loud, I put a 292 in it.. let's see:
A. Theres the water temp gauge.. I dont think that uses electric.. just a metal or copper wire to the engine? (right pic)
B. Oil pressure.. I am not sure if the uses electric.. just a metal or copper wire going to the engine.. I guess a sensor on the 292 connects to that? (left pic)
C. Gas gauge, I guess the sending unit in the tank (12v) but there are 2 insulated electric wires on the back of the gas gauge - electric but not exactly sure what for.. (right pic)
D. AMP gauge has two bolts and studs on it.. but not sure how that hooks up.. (left pic)
E. I *thought* 12v bulbs work with 12v system.. or am I missing something in regards to the gauge housing?

