Background of problem history;
I have oil in my spark plug wells, most predominantly my #6, #7 and maybe some in #8. The oil looks reasonably clean, like it is not black. it looks more golden. I am progressing to move forward with changing the value cover gaskets on both sides. I can't imagine it is getting in the wells from being seeped through the base of the spark plugs from worn piston rings, but what the hell, you never know. It does not appear to be any coolant down in the wells, so I dont think that the intake manifold is an issue. The car has 280,000 miles on it. So you have to believe its piston rings have seen better days. I replaced all spark plug power packs out and at that time is when I noticed the oil in the spark plug wheels. (1,2 maybe 4, defiantly 5 & 6). After sucking all the oil out of the wells with a hand held suction device and dispensing it into a clean glass jar, I could see that the oil is golden, not black from the crank. This makes me think that the oil is fresh or very finely strained, maybe via the base of the plug to the engine spark plug well. Anyways after that total last coil pack replacement and thoroughly cleaning the spark plug wells at the same time, the car purred like a kitten. (no miss fires) , but only for about maybe two months of driving. Or about 2K miles maybe 3K. The valve cover gaskets seem somewhat a possible solution , but it seems like the oil seeping under the gasket of the valve cover is like a salmon swimming up stream. Please tell me my approach is correct.
Question; Is it possible that then oil could be pressing around the base of the spark plugs and starting to fill up the wells from below? UGH!!!! only me. Murphy's Law.
Now I am in the mist of replacing then water pump too, along with the valve cover gaskets. The intake manifold has been replaced about 6-7 years ago. I do not see any coolant seeping into the plug wells. My game plan is to complete all items, water pump, valve cover gasket and clean out all spark plug wells. I am also considering putting some copper spark plug "O" ring gaskets between the head and then spark plugs. Maybe I can squeezy out another few thousand miles before the engine gives up the ghost. Then I will have to retire her. Does anyone have a good answer to this Delia?

 

Please Help with a knowledgeable reply if you have a god solution and maybe seen it before. Thanks Anyone.

 

The oil likely came from the valve cover. Oil from the combustion chamber cannot make its way up the plug threads and pool in the wells if the plug is tight.. If any oil was present in the combustion chamber, it will either get burned or go out the exhaust. DO NOT place any washers or gaskets on the spark plugs.

 

Same thing happened to me last month. Engine light came on. Diagnostic gave me a code for #7 cylinder misfire. Mechanic found fresh oil in bottom. Cleaned out oil and changed coil pack. Problem solved for $200.

 

Wait till the well fills up again with oil, then the misfire returns.. Fix the oil leak and no more problems. Your mechanic stole $200 from you because he solved the symptom but didn't fix the cause.