Ignition Rotor: Testing and Inspection

1. Remove distributor cap retainers.
2. Verify that the rotor is not loose on the distributor shaft.
3. Remove the rotor.
4. Inspect the rotor for signs of "Burn Through" from the coil input to the shaft
5. Inspect the center contact for excessive carbon build-up and corrosion.
6. Check the outer contact for excessive carbon build-up and corrosion.
7. Using an ohmmeter check for continuity between the input (center) electrode and the output (outer) electrode.
8. If the Rotor fails any of these tests replace it.