Tach Reads Double RPM After Installing Petronix Smiths Tacho
Rebuilt by me and converted to negative ground. Worked on first try. The tachometer cable on my TR6 is not hooked up and the internal core was pulled out of the cable sheath for some reason by the Calibrate Smiths Tachometer | British Car Forum Repaired my 69 Mini Cooper S 1275 - tachometer read double after installing Petronix. Easy fix on Smiths Tachometer. Smiths RVI Tachometer repair overview ...