1994 BMW 318 Oily Spark plug threads, very rough idle

Tiny
S4HINDS
  • MEMBER
  • 1994 BMW 318
  • 4 CYL
  • 2WD
  • MANUAL
  • 15,600 MILES
The two spark plugs closest to the front of car have oily threads and car idles very rough, but runs very well. What all do I have to do to fix the rough idle and oily threads?
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Thursday, February 25th, 2010 AT 3:46 PM

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Tiny
DR. HAGERTY
  • EXPERT
The crankcase vent valve is suspect in the rough idle.
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Friday, February 26th, 2010 AT 8:39 AM

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