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Oil in spark plug wells??? (archive)

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Posted by ChesS on June 27, 1999 at 20:47:13:

After owning my 91 M5 for a few month, I tried for the first time to replace spark plugs.
On plugs # 5 and 6 when I pulled the long cable tips I noticed that they were all soaked in oil and so were the tops of spark plugs. The rest of the plugs looked clean and dry. Is this most likely a valve cover gasket leaking or something more serious?
After replacing all plugs there was a little blue smoke from the tail pipe for a short while (probbably because some of the oil got into cylinders) but car runs fine, Any advice?

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