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wpbmuscle 12-01-2013 08:33 PM

1 spark plug covered in grease
Hi I just bought a 1990. I started changing the spark plugs when I noticed 1 was covered in grease on the plug and on the wire boot. What does this mean?

dawson1112 12-02-2013 03:22 AM

Is it a white looking grease? Either way it is supposed to be there , dielectric grease , or silicon based grease to keep the plug wires from corroding.

wpbmuscle 12-02-2013 05:29 AM

No its dark and its only on one cylinder

88 orangepeel notch 12-02-2013 07:19 AM

??? That's a good one. As dawson said, it should be dielectric grease, but it's usually a somewhat clear grease, maybe just very old and dirty. And only being on one cyl. Hmmm, don't know.

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