I have a little oil in the spark plug wells, anything to worry about?
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Northstar Engines and System Technical Discussion Discussion, I have a little oil in the spark plug wells, anything to worry about? in Cadillac Engine Technical Discussion; Hello everyone, I found some engine oil sitting in the plug wells when I changed the spark plugs last week. ...
  1. #1
    fleishman is offline Cadillac Owners Fanatic
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    I have a little oil in the spark plug wells, anything to worry about?

    Hello everyone,

    I found some engine oil sitting in the plug wells when I changed the spark plugs last week. There was more oil on top of some plugs than others, and two or three were clean. My engine does leak/eat about a quart of oil every 2500 miles.

    Valve cover gaskets?

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    z06bigbird is offline Cadillac Owners Connoisseur
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    Re: I have a little oil in the spark plug wells, anything to worry about?

    That is the cause. You can perhaps tighten them if you do not crush them. Or just wash that part of the engine off once per year.

  4. #3
    Ranger's Avatar
    Ranger is online now Cadillac Owners Member
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    Re: I have a little oil in the spark plug wells, anything to worry about?

    It is the plug well "O" ring seal in the cam cover that has seeped a bit. Consider how long and how many miles it took to accumulate. Wipe it out and then do it again next time change the plugs (in another 100K).

  5. #4
    fleishman is offline Cadillac Owners Fanatic
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    Re: I have a little oil in the spark plug wells, anything to worry about?

    Thanks guys, I will clean them out and see how long it takes to accumulate. If it pools alarmingly quickly, I'll post back for a fix.

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