1. Disconnect the negative battery cable.
2. Remove the engine cover.
3. Remove the dynamic chamber. (see
INTAKE-AIR SYSTEM REMOVAL/INSTALLATION [MZI-
3.5]
.)
4. Remove the ignition coils. (See
IGNITION COIL REMOVAL/INSTALLATION [MZI-3.5]
.)
5. Remove the spark plugs using a plug-wrench.
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-3.5]
SPECIFICATION
Spark plug type
ZZJ1 18 110
SPARK PLUG GAP INSPECTION
1. Measure the spark plug gap using a wire type plug gap gauge.
z
If not within the specification, replace the spark plug.
Spark plug gap
1.29-1.45 mm {0.051-0.057 in}
CAUTION:
z
If a spark plug that is not as specified is installed, engine
performance will be deteriorated. Install only the specified spark plug
when replacing.
CAUTION:
z
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
CAUTION:
z
To avoid possible damage to the tip, do not adjust the plug gap.
z
To prevent damaging the tip, use a wire type plug gap gauge when
inspecting the plug gap.
2007 Mazda CX-9 Grand Touring
2007 ENGINE PERFORMANCE Ignition System (MZI-3.5) - CX-9
Microsoft
Sunday, November 15, 2009 9:22:43 AM
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© 2005 Mitchell Repair Information Company, LLC.