1991 Mercedes-Benz 560SEC Q&A

1991 Mercedes-Benz 560SEC Question: smoke

1989 560 my engine will smoke (blue) at high speed ,but vewry little at idle -
Answer 1
Valve stem seals are a common problem. They can be replaced without removing the head but requires some special tools to do the job. -
Answer 2
Suggest also remove valve covers and check cam oiling system. -
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