Spark Plug Removal/Installation [MZI-3.7]
WARNING: This page is about a different car, the 2009 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION:
- If a spark plug that is not as specified is installed, engine performance will be deteriorated. Install only the specified spark plug when replacing.
- Disconnect the negative battery cable.
- Remove the engine cover (See ENGINE COVER REMOVAL/INSTALLATION [MZI-3.7] ).
- Remove the dynamic chamber. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION [MZI-3.7] ).
- Remove the ignition coils. (See IGNITION COIL REMOVAL/INSTALLATION [MZI-3.7] ).
- Remove the spark plugs using a plug-wrench.CAUTION:
- 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
- Apply small amount of the specified dielectric grease to the inside of the ignition coils, then install the ignition coils to the spark plugs.
- Install in the reverse order of removal.
Tightening torque
9-20 N.m {92-203 kgf.cm, 80-177 in.lbf}