Quote:
Originally Posted by 335DEE
If have to agree with ade. If think that after all has been done this whole scenario has been overcomplicated and that it's a simple case of the turbo seals are weeping.
When the engine is at temp there is a fair amount of smoke in the breather gasses, sounds like you have more than you should. If think I'd be removing the turbo next to see what the play in the shaft is like and if there is any oil going through the exhaust
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I've got to be honest when I first read this a couple of months back I thought turbo seals but everyone was talking about EGR's. Same scenario back in the day with the turbo charged petrol engines, when you de-catted the exhaust i.e reduced the back pressure it would highlight weak turbo seals that were relying upon that little bit of backpressure to stop the oil seeping through. Especially noticeable after about 20 seconds idling at traffic lights
I would always specify staggered oil seals when getting a turbo rebuilt.
Are you running the correct grade of oil?
When the engine is idling and its smoking what happens if you just rev the engine slightly say 1100rpm (therefore increasing the pressure in the exhaust) you will need to rev it for a couple of minutes to clear any oil in the exhaust....