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Home >> Infiniti >> 1993 >> J30 V6-181 3.0L >> Repair and Diagnosis >> Powertrain Management >> Ignition System >> Spark Plug >> Service and Repair
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Spark Plug: Service and Repair

Removing Balance Tube:





REMOVAL
1. Remove the intake manifold balance tube.
NOTE: The O-rings can be re-used if not damaged upon removal.


Removing Ignition Coils:





2. Disconnect the ignition coil connector.
3. Remove the ignition coil fasteners and remove the coil.

CAUTION: USE SAFETY GLASSES.

4. Using compressed air, blow out the area at the base of the spark plug to remove any debris
5. Using a 16mm (5/8 in.) flex socket and extension, remove the spark plugs (counterclockwise rotation).

INSTALLATION
1. Using a suitable tool, check and adjust the spark plug gap.

Electrode Gap: 1.0 - 1.1 mm (0.039 - 0.043 in.)

2. Using a suitable rubber hose or designated tool, start the spark plugs by hand (clockwise rotation).
3. Tighten and torque the spark plugs.

Spark Plug Torque: 2.0 - 3.0 kg-m (14 - 22 ft. lbs.)

4. Apply a small amount of di-electric compound to the inside of the ignition coil boots.
5. Reinstall the ignition coil and tighten the fasteners.
6. Reinstall the balance tube and tighten the fasteners.