I have read that installing a shunt resistor is advisable to avoid a fire or a lack current with a faulty gauge. My gauge works, but at 58 years old I'd hate to have a problem down the road. Has anyone installed one of these with success? Any advice on what type of shunt resistor I should buy?
I am having my tach converted for the same reason but that's more straight forward.
Quote from: Rcbach302 on April 23, 2026, 06:31:54 PMI have read that installing a shunt resistor is advisable to avoid a fire or a lack current with a faulty gauge. My gauge works, but at 58 years old I'd hate to have a problem down the road. Has anyone installed one of these with success? Any advice on what type of shunt resistor I should buy?
I am having my tach converted for the same reason but that's more straight forward.
I'm sorry but I don't have advice on the shunt resistor but have some insight on the issues that you are concerned about. Although possible I haven't heard of this problem with the alternator gauge wiring historically or otherwise being an issue over many decades of being an enthusiast. The tach sometimes (not often ) goes bad but if it does and your car will not start all you have to do is disconnect the wires from the tach and plug the two ends from the under dash harness together for the car to start and run again.This allows you to drive the car while having the tach repaired. I believe that you are being over concerned about possible problems however it is your car and if it causes you undue stress by all means do what you have to do.