Outer Limits 4x4 Board

My mates 2.8 turbo diesel pajero runs very rough, is very rattley and blows a heap of blake smoke when he starts it up cold. If he uses the hand throttle it runs fine and goes well when it's warm.
He had it tuned up a while ago with some more boost etc. He took it back 2 the diesel mechanic and was told they couldn't find anything wrong

The glow plugs are only a year old so there still in good condition.

Any help would be appreciated.

Thanx

Your explanation is a little vague, but the 2.8 have a timing chain problem.
It can wear quite fast and it then sucks power from the engine.
J Top

It runs fine.
It's only when he starts it cold and lets it idle that it plays up.

Mate, I have a very similar problem with my triton 2.8 non turbo except mine blows white smoke on start-up. After a lot of screwing around with different mechanics I have narrowed the problem down to one (or a combination) of three things: injectors leaking fuel when engine is off, value clearances out, fuel pump incorrectly adjusted. I'll get them fixed when I get the cash. At the moment I am driving around with the hand throttle turned up to the correct idle speed (750 rpm).