Another Problem..This time with spark plugs.

[Koa04]

When I was changing my spark plugs I noticied one (only 1) plug had oil on the threads. No oil on the insulator area just the threads. Is this common? I've never seen it before.

 

[Kilgore Trout]

You could have had some liquid in the bottom of your plug well that got on the threads as you backed it out. You do not really read a plug by looking at the threads. Here's an article for you to read:
http://www.dansmc.com/Spark_Plugs/Spark_Plugs_catalog.html

 

[Koa04]

Thanks for that link.. I feel much better now.

 

[Kilgore Trout]

Just be sure and blow out your plug well before removing the plug, you do not want debris falling in the cylinder.

Here's a link to an article on changing plugs:
http://www.bullittarchive.com/html/modules/articles/article.php?id=83