What is a distributor rotor?
The distributor rotor is a small metal arm or connector that sits on top of the distributor shaft nestled safely under the distributor cap. The distributor shaft is rotated by the engines crankshaft and then subsequently causes the rotor to spin under the cap. The rotor is also connected to the ignition coil. When the coil delivers spark, it goes directly to the rotor and the rotor passes the spark by moving close to each connector rod for each cylinder. It passes by close enough without touching to where the current will jump across the gap to power the plug wires and then the plugs. What can go wrong with a distributor rotor? A rotor will face similar wear and tear seen in all ignition parts, such as the distributor cap. The rotor typically becomes corroded from moisture, chemicals, or other emissions. It can also shake loose or become warped from engine vibration. Rotors can get dirty and stop spinning or even break if they get stuck for some reason. How do I know if I have a faulty
