Mazda CX-9 Grand Touring 2009 Manual page 1808

2008 ENGINE PERFORMANCE Ignition System (MZI-3.7) - Mazda CX-9
Fig. 3: Measuring Resistance Between Ignition Coil Terminal A And Ignition Coil Boot Socket
Courtesy of MAZDA MOTORS CORP.
SPARK PLUG REMOVAL/INSTALLATION [MZI-3.7]
CAUTION:
1. Disconnect the negative battery cable.
2. Remove the engine cover. |j]
3. Remove the dynamic chamber. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION [MZI-
3.7] .)
4. Remove the ignition coils. (See IGNITION COIL REMOVAL/INSTALLATION [MZI-3.7].)
5. Remove the spark plugs using a plug-wrench.
CAUTION:
6. Install in the reverse order of removal.
Tightening torque
9-20 N.m {91-204 kgf.cm, 79-177 in.lbf}
SPARK PLUG INSPECTION [MZI-3.7]
SPECIFICATION
Spark plug type
CY01 18110
SPARK PLUG GAP INSPECTION
CAUTION:
1. Measure the spark plug gap using a wire type plug gap gauge.
2008 Mazda CX-9 Grand Touring
If a spark plug that is not as specified is installed, engine
performance will be deteriorated. Install only the specified spark plug
when replacing.
Apply small amount of the specified dielectric grease to the
inside of the ignition coils, then install the ignition coils to the
spark plugs.
Specified grease: Motorcraft XG-3A
To avoid possible damage to the tip, do not adjust the plug gap.
To prevent damaging the tip, use a wire type plug gap gauge when
inspecting the plug gap.