Oil on spark plug threads

Tiny
DONL
  • MEMBER
  • 1995 EAGLE 2000 GTX
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 112 MILES
I have a 1995 Eagle Summit with a 1.9L Mitsibushi engine that is having rough idle and sputtering. I have oil in the threads on cyl# 1 and did a compression test that showed 190,192,195,195 after putting a little oil in cyl# 1 I got 205,200,205,200. They seem to be in the range per the book. But I am not sure what the problem is rings, head gasket or other.
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Wednesday, June 29th, 2011 AT 1:43 AM

3 Replies

Tiny
DOCFIXIT
  • MECHANIC
  • 18,828 POSTS
Think valve cover gasket seeping oil and collecting on plug
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Wednesday, June 29th, 2011 AT 2:35 PM
Tiny
DONL
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Would that allow the oil to get into the cylinder and cause a missfire?

Thanks.
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Saturday, July 2nd, 2011 AT 8:30 PM
Tiny
DOCFIXIT
  • MECHANIC
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No that could be valve seals or oil rings
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Saturday, July 2nd, 2011 AT 9:12 PM

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