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Old 01-25-2009, 02:14 PM
Join Date: Oct 2004
Location: San Francisco
Posts: 20
Oil in spark plug hole 94 E320.

i removed a spark plug from 1994 E320 and it had oil all over it. The car was running fine, no indication of engine misfiing. I had a red engine light come on after an oxygen sensor fixed it the first instance. i washed the engine and then it came back on a couple of days later. A post said water gets in spark plugs and stays there for some reason causing engine light. I was checking this when i noted all of this (fresh) oil dripping off the plug when I pulled it out.Bosch platinum +4 R3. I am going to get new Bosch copper plugs. Still do not know what is best recommendation for plugs.

I hope none of the other plug holes have oil.

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Old 01-25-2009, 04:47 PM
Join Date: Oct 2004
Location: San Francisco
Posts: 20
Valve cover gasket 94 E320 insight

Is replacing the valve cover gasket an engine tear down? How big a job is this ?
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Old 01-25-2009, 06:14 PM
Registered User
Join Date: Aug 2003
Location: Phoenix
Posts: 3,726
No, not a big job, but if your wiring harness is original you'll probably ruin it.

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