Plug Gap Inspection; Cleaning; Visual Inspection; Resistance Inspection - Mazda 3 Workshop Manual

Mazda 3 Workshop Manual – Engine + Wiring Diagrams + Diagnostic Trouble Codes
Z6
NGK -
Type
DENSO SK16PR-E11 -

Plug Gap Inspection

Caution
• To avoid possible damage to the tip, do not adjust the plug gap.
• To prevent damaging the tip, use wire type plug gap gauge when inspecting the plug gap.
1. Measure the spark plug gap using the wire type plug gap gauge.
• If it is more than the maximum specification, replace the spark plug.
Standard plug gap
Z6: 1.0-1.1 mm {0.039-0.043 in}
LF: 1.25-1.35 mm {0.049-0.053 in}

Cleaning

Caution
• To avoid possible damage to the tip, do not use a wire brush to clean the plug.
Note
• To avoid possible damage to the tip, use gasoline to clean the spark plugs after removing dirt.

Visual inspection

1. Inspect the following items:
• If there is any malfunction, replace the spark plug.
- Insulator breakage
- Worn electrode
- Damaged gasket
- Badly burned insulator (sparking side)

Resistance Inspection

1. Measure the resistance of the spark plug using a tester as shown in the figure.
Downloaded from
LF
ITR6F13
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