Lancer Sportback L4-2.4L (4B12) (2010)
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Spark Plug: Testing and Inspection
SPARK PLUG CHECK AND CLEANING
Required Special Tool
MB992273: Spark Plug Brush
CAUTION:
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Never attempt to adjust the gap of the iridium plug.
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Do not attempt to clean the iridium plug using a wire brush because it may result in damage to the electrode. When the iridium plug is
cleaned, use a plug cleaner, sand blast type, or special tool Spark Plug Brush (MB992273).
NOTE: Obey the maintenance interval of the relevant vehicle for the spark plug replacement. If the plug gap and insulation resistance are normal, check
the plug condition and clean if necessary.
SPARK PLUG GAP CHECK
[2.0L ENGINE]
Check the plug gap with the wire type plug gauge. Replace it if the limit is exceeded.
Standard value: 0.5 - 0.6 mm (0.020 - 0.023 inch)
Limit: 0.75mm (0.029 inch)
[2.4L ENGINE]
Check the plug gap with the wire type plug gauge. Replace it if the limit is exceeded.
Standard value: 0.7 -0.8 mm (0.028 -0.031 inch)
Limit: 1.2mm (0.047 inch)
SPARK PLUG INSULATION RESISTANCE CHECK