Lots of smoke.....

Got a problem with my 300tdi Disco. Its kicking out plumes of white/blue smoke that smells of oil. I've changed the turbo and manifold and things have improved a bit but not by much. The engine had lost a lot of power but some of this has returned since the changeover, although I'm not convinced the new(er) turbo is doing a whole lot....the engine seems to gain a little pressure and clear its throat but then the smoking starts all over again.
I've flushed the intercooller, checked all the pipes, checked the oil feeds and made sure the fuel pump diaphragm is good
Apart from the aforementioned problems, the engine is running and sounding absolutely fine and has no starting issues.
Anyone have any similar experiences?

Cheers.

possibly the fuel injector?
oil rings ?

Have you checked to see as to how much oil has been dumped into the exhaust system. Althou i understand this won't allow for lack of power, unless you are still running a cat and its plugged. However it may account for some of the smoke. But i'm just guessing at that one.

Sorted: knackered injector. Was thrown off the scent because the Turbo had blown as well.

Good stuff