Ok,
So my 300sdl is running great as always. I have noticed a slight oil leak around lower part of front of turbo (from underneath). Obnoxious, but not much; so I pulled intake hose. I tried to spin turbo and it does turn, but once spun and released, stops almost immediatley. Tried to put short peice of rubber hose on shaft to reach it better to spin; same result. This unit has apx 255k on it. Not noticeable shaft play in any direction. Some smoking on hard acceleration, and some smoking at idle. NOT injectors (thanks Greazzer!!). Is turbo due for rebuild/replace? How much free spin should it have if any?