Accord V6-3.0L Hybrid (2005)
Spark Plug: Testing and Inspection
Spark Plug Inspection
1. Inspect the electrodes and ceramic insulator.
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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 hot
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Insufficient cooling
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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 cold
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Excessive idling/low speed running
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Clogged air cleaner element
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Deteriorated ignition coils
2. If the spark plug electrode is dirty or contaminated, clean the electrode with a plug cleaner.
NOTE:
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Do not use a wire brush or scrape the iridium electrode since this will damage the electrode.
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Use a chemical cleaner such as Carb Spray to clean contamination on the electrode.
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When using a sand blaster spark plug cleaner, do not clean for more than 20 seconds to avoid damaging the electrode.
3. Do not adjust the gap (A) of iridium tip plugs; replace the spark plug if the gap is out of specification.