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Hemi plug change - plug covered in oil #5393884 04/04/20 07:16 PM
Joined: Oct 2010
Posts: 51
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BigD7 Offline OP
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Changed the plugs in my 2010 jeep today and noticed one of the plugs was covered in oil and soot. The plug wasnt even finger tight, which was very odd. Can the fact that it was so loose be the reason for all the oil or am i looking into replacing the valve cover gasket? The second plug in this cylinder was also loose and "dirty" but not nearly as bad. Thanks for all the help.

Re: Hemi plug change - plug covered in oil [Re: BigD7] #5393919 04/04/20 07:48 PM
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ZeeOSix Offline
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The valve cover gasket has nothing to do with oil on the spark plugs. Maybe bad valve stem seals or rings though.

Re: Hemi plug change - plug covered in oil [Re: ZeeOSix] #5393950 04/04/20 08:35 PM
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blufeb95 Offline
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Originally Posted by ZeeOSix
The valve cover gasket has nothing to do with oil on the spark plugs. Maybe bad valve stem seals or rings though.

It would be if we're talking about the terminal side of the plugs.

Re: Hemi plug change - plug covered in oil [Re: BigD7] #5393995 04/04/20 09:37 PM
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hemitruck Offline
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BigD, can't answer your guestion, but I would check it often for tightness, and pull plug at 3000 miles and see it is fouled with oil.

Re: Hemi plug change - plug covered in oil [Re: BigD7] #5394000 04/04/20 09:41 PM
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hemitruck Offline
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BigD, can't answer your guestion, but I would check it often for tightness, and pull plug at 3000 miles and see it is fouled with oil.

Re: Hemi plug change - plug covered in oil [Re: hemitruck] #5394242 04/05/20 08:11 AM
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BigD7 Offline OP
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Thanks hemi, thats kind of the plan. The truck's under warranty but im not ready to let them tear into it just yet.

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