Spark Plug: Service and Repair

REMOVAL

NOTE: Observe Service Precautions before beginning procedures.






1. Use spark plug wire remover to pull the ignition wire off of the spark plug.






2. Remove the LH spark plugs.






3. Remove the RH spark plugs.






4. Inspect the spark plug.

- Deposits bridging spark plug gap (A).

- Wet black deposits (oil fouling) (B).

- Dry black deposits (carbon fouling) (C).

- Pre-ignition damage (D).

- Deposits fused on spark plug (E).

- Overheating (F).

- Normal spark plug (G).






5. Adjust the spark plug gap.

INSTALLATION
1. Apply silicone dielectric compound to the inside of the spark plug wire boot.






2. Install the LH spark plugs.






3. Install the RH spark plugs.
4. Install the spark plug wires.