Burned or worn electrodes may be caused by these conditions:
?
Advanced ignition timing
?
Loose spark plug
?
Plug heat range too hot
?
Insufficient cooling
Fouled plugs may be caused by these conditions:
?
Retarded ignition timing
?
Oil in combustion chamber
?
Incorrect spark plug gap
?
Plug heat range too cold
?
Excessive idling/low speed running
?
Clogged air cleaner element
?
Deteriorated ignition coils
Except K24W1 engine
K24W1 engine
2.
Replace the plug at the specified interval, or if the center electrodes (A) is rounded, or if the spark plug gap (B) is out of specification, or if the spark plug electrode is dirty or contaminated. Use only the spark plugs listed.
NOTE:
Do not adjust the gap of iridium tip plugs.
Do not use plug cleaner.
Spark Plugs
Except K24W1 engine:
NGK:
ILZKR7B11
DENSO:
SXU22HCR11
Electrode Gap
Standard (New):
1.0?1.1 mm (0.039?0.043 in)
K24W1 engine:
NGK:
DILKAR7G11GS
DILKAR7H11GS
DENSO:
DXE22HQR-D11S
Electrode Gap
Standard (New):
1.0?1.1 mm (0.039?0.043 in)
3.
All Removed Parts - Install
1.
Install the parts in the reverse order of removal.
