Important: Discoloration of the cap and some whitish build up around the cap terminals
is normal. Yellowing of the rotor cap, darkening and some carbon build up
under the rotor segment is normal. Replacement of the cap and the rotor
is not necessary unless there is a driveability concern.
- Inspect the cap for cracks, tiny holes, or carbon tracks between the
cap terminal traces. Diagnose the carbon tracks using the following procedure:
| 1.1. | Remove the engine cover. Turn OFF the ignition. |
| 1.3. | Place 1 lead from the DMM on a cap terminal. |
| 1.4. | Use the other lead in order to probe all other terminals and the
center carbon ball. |
| 1.5. | Move the base lead to the next terminal. Probe all other leads. |
| 1.6. | Continue this procedure until you test all the secondary terminals. |
| 1.7. | If there are any non-infinite readings, replace the cap. |
- Inspect the cap for excess
build-up of corrosion on the terminals. Scrape clean the terminals. Replace
the cap if the corrosion is excessive. Some buildup is normal
- Inspect the rotor segment for excess wear. Replace the rotor if
excess looseness in the rotor segment is present.
- Inspect the shaft for shaft-to-bushing looseness:
| 4.1. | Inspect the housing for cracks or damage. |
| 4.2. | If the shaft wobbles, replace the housing assembly. |
