I'm VERY interested in the concept of the turbo leaking oil into the intake. I have oil buildup (500 miles after Engine Brite) on the intake pipe right above the turbo. The intake crossover tube & manifold are black oily. there is oil in the line from the intake to overboost switchover. The EGR vacuum line is not working. There is no oil leaking from the bottom of the turbo. I remove my oil filler cap and feel almost nothing, very small puffs of air is the most - so I don't think is blowly. '87 300D 261Kmi - with a internally leaky turbo, what's the easiest way to check the shaft? (I've NEVER messed with the exhaust side of any engine).

Thanks,
Brian

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Brian Toscano