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Smoke

(1991 Mercedes-Benz 560SEC)
in Cedar Hill, TX on November 28, 2010
1989 560 my engine will smoke (blue) at high speed ,but vewry little at idle
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Popular Answer
on April 14, 2013
Suggest also remove valve covers and check cam oiling system.
on January 25, 2011
Valve stem seals are a common problem. They can be replaced without removing the head but requires some special tools to do the job.
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