C3 Tech Tip - Tachometer Needle Bouncing?
- Nov 5, 2013
Does the tachometer needle on your 1968-’74 bounce and not give a steady reading? Does your tachometer just not function? The tachometers on these Corvettes are cable driven from the distributor. The cable, like a speedometer cable, will wear and cause the needle to not hold steady because the cable ends are worn. Replacing the inner cable or the complete cable and casing will resolve this problem. For tachometers that do not work at all, it’s most likely because of the tachometer gear inside the distributor.