Odyssey L4-2.2L SOHC (1995)
Spark Plug: Testing and Inspection
Spark Plug Inspection
1. Inspect the Electrodes and Ceramic Insulator for:
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Worn or deformed Electrodes.
Improper Gap.
Oil Fouling.
Carbon Deposits.
Cracked Center Electrode Insulator.
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Damaged Gasket.
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Cracked Insulator.
Burned or worn Electrodes may be caused by:
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Advanced Ignition Timing.
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Loose Spark Plug.
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Plug heat range too low.
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Insufficient cooling.
Fouled Plug may be caused by:
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Retarded Ignition Timing.
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Oil in Combustion Chamber.
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Incorrect Spark Plug gap.
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Plug heat range too high.
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Excessive idling/low speed running.
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Clogged Air Cleaner Element.
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Deteriorated Ignition Coil or Ignition Wires.
2. Check the electrode gap. Adjust the gap with a suitable gapping tool.
Standard Electrode Gap: 1.1 /+0 -0.1/ mm (0.043 /+0 -0.004/ in)
Example Of Worn Plug