Notice: This engine has aluminum cylinder heads. Do not remove the spark plugs from a hot engine, allow it to cool first. Removing the spark plugs from a hot engine may cause spark plug thread damage or cylinder head damage.

1. Turn the ignition OFF.
2. Disconnect the electric ignition (EI) module harness connector.
3. Remove the ignition coil housing attachment bolts and remove the ignition coil housing.

Important: Make sure that the water and debris are blown out of the spark plug holes before removing the spark plugs.

4. Remove the spark plugs using a 5/8 in. spark plug socket.

Notice: Refer to Fastener Notice in the Preface section.

Notice: Do not coat spark plug threads with anti-seize compound. If anti-seize compound is used and spark plugs are over-torqued, damage to the cylinder head threads may result.

Specification
The spark plug gap is 1.0 mm (0.040 in).

Install the spark plugs.

Tighten
Tighten the spark plugs to 20 N·m (15 lb ft).

1. Apply dielectric compound to the spark plug boots and make sure no corrosion is present.
2. Install the ignition coil housing to cam cover and attachment bolts.

Tighten
Tighten the ignition coil housing bolts to 10 N·m (89 lb in).

3. Connect the EI module harness connector. Push in until a click is heard and pull back to confirm a positive engagement.