Contour Enthusiasts Group Archives Forums General Troubleshooting Quick ??? about my recent spark plug swap

Put new plugs in my CSVT. All the old plugs looked like they had normal wear, except the Number 6 plug. I removed the old plug and I think it had what looked like oil on it above the threads. Can anyone tell me what this means??? Good, bad or not to worry??? thanks fellas

This might help:

http://www.spark-plugs.co.uk/pages/technical/diagnosis.htm

Oil above the threads on this type of engine usually means that the spark plug well seals in the valve cover are leaking. Changing the valve cover gasket (cam cover) is usually what is needed to solve the problem. If you wait until it gets worse, you will need to replace the spark plug wires as well. Maybe you are due for plug wires anyway.