Quote Originally Posted by Lexx View Post
Hey all, so I have had the turbo rebuilt and I reinstalled same with all new gaskets and nuts, torqued to spec as per manual supplied by this magnificent site! (thanks!) Nothing was dropped in jono 6974, i made sure to be careful on the install. Bills gu, i have checked the shield and customised same for my temperature probe, so all seems ok.

robewott - perhaps its a polished bearing in the turbo, or pitted bearing, get a stethoscope and see exactly where it is coming from, use a hose with a barb end (from bunnings irrigation section, use a barb end with any kind of hose the fits) and see where exactly where the noise eminates from.
It's only there when the engine is cold. It sounds like the exhaust manifold.