Optima V6-2.7L VIN 4 (2007)
2. Remove the ignition coil.
3. Using a spark plug socket, remove the spark plug.
CAUTION:
Be careful that no contaminates enter through the spark plug holes.
4. Inspect the electrodes (A) and ceramic insulator (B).
INSPECTION OF ELECTRODES
5. Check the electrode gap (A).
Standard : 1.0 - 1.1 mm (0.0394 - 0.0433 in.)
