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Old 04-05-2007, 02:41 AM   #1
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Default OIL ON PLUGS

My buddy drives a saturn that has 1.9 liter 4 banger with dohc. When we pulled his plugs to change them two of them were covered in oil??? what would be causing this?
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Old 04-05-2007, 02:45 AM   #2
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Do you think this could be caused by a leaking vcg
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Old 04-05-2007, 02:46 AM   #3
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it means that the car is burning oil, which many saturns do, it could a few things including worn piston rings (smoke on acceleration) , and worn valve seals (smoke at startup)
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Old 04-05-2007, 02:50 AM   #4
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His engine is not burning oil or smoking at all. The oil was on the top of the plugs and on the threads, but not on the tip that is in the combustion chamber...thats why i think that it might be the valve cover gasket
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Old 04-05-2007, 02:57 AM   #5
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it could be, are there any visible leaks at all?
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Old 04-05-2007, 03:00 AM   #6
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Can't see much, its only a four banger and the plugs go into a hole in the top of the vc...and its only in the hole that there is oil...Thats why i was thinking vcg but i wanted another opinion just in case i was missing something
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Old 04-05-2007, 03:20 AM   #7
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its more than likely the valve cover gaskets, they like to start leaking in the higher mileage
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Old 04-05-2007, 07:28 AM   #8
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Look at it this way..Oil doesn't usually flow uphill. Soooo what are the plugs downhill from?
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Old 04-05-2007, 07:36 AM   #9
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Spark plug seal. Common problem on the DOHC 1.9. They are the seals that go between the valve cover and head, and leak overtime, leaking down into where the spark plugs are.

http://info.rockauto.com/Fel-Pro/Det...50454R_TOP.jpg
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Old 04-05-2007, 11:06 AM   #10
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Quote:
Originally Posted by DarkShadow
its more than likely the valve cover gaskets, they like to start leaking in the higher mileage

Yes, exactly the problem... The valve cover gaskets will need to be replaced..

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