1995 Honda Civic Spark Plug O-Ring

HONDA CIVIC
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T28Z
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1995 Honda Civic EX 1.6L 200k miles. Changed the spark plugs for the 10th time. Noticed a small gasket or "o" ring on one of the plugs after removal. Is it essential to replace that part?
Jan 17, 2007 at 10:15 AM
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BRUCE HUNT
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I hope that the ring you found was a metallic one. New spark plugs should come with this gasket on them. Why are you changing them for the 10th time?
Jan 17, 2007 at 1:45 PM
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T28Z
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I change the plugs (copper plugs) about every 20k miles as I drive the car hard. The ring was black plastic and wrapped around one of the plugs upon removal. All medal washers were in place. Thanks for the reply.
Jan 18, 2007 at 12:34 AM
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BRUCE HUNT
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That must have come from the wire. Can't see any other way for it to get in the plug well.
Jan 18, 2007 at 5:47 AM

Suggested Repair

The black plastic ring is not a missing spark plug gasket; the metal washers were already in place. It most likely came from the spark plug wire. Inspect the wire boot and seal, and replace the wire if damaged. New plugs should include their metal gasket.

Conversation Summary

The owner of a 1995 Honda Civic found a black plastic ring on a spark plug after removal and asked whether it needed replacement. The metal washers were still in place. The expert concluded the ring came from the spark plug wire rather than the plug itself.

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