why the spark plug always getting wet?

1995 MITSUBISHI LANCER
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ALEXAUTOMART
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I replaced all spark plug and it was okay, but after several days all spark plug are getting wet again. what would be the problem of my car. thanks.
Oct 2, 2011 at 4:55 AM
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RIVERMIKERAT
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Do they smell like gas? Back oxygen sensor. Bad MAP/MAF/IAC. Were they properly gapped?
Oct 2, 2011 at 5:24 AM
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ALEXAUTOMART
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yes, they are all properly gap. i think it's oil covering the plug tip and electrode. not that smelling gas but unburned oil from chamber instead. where were probably the oil coming from. is there any possibility of broken valve seal or piston ring causing this problem? thanks
Oct 2, 2011 at 5:37 AM
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RIVERMIKERAT
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Yep. Leaking valve seal. Leaking rings. Or blown head gasket.
Oct 2, 2011 at 5:49 AM
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ALEXAUTOMART
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okay sir, thank you for your opinion. i will send my car to the local shop to fix it. i have the idea now. thanks again.
Oct 2, 2011 at 6:00 AM
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RIVERMIKERAT
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My pleasure. Good luck.
Oct 2, 2011 at 7:39 AM