dont want this to appear as a sales pitch but look in the diesel section at the modified oil feed/filter pipes i do for these engines. numerous people on here have had them off me and i am sure they will agree they are worth every penny to give these turbo's a fighting chance.

http://www.ebay.co.uk/itm/111700694113?ssPageName=STRK:MESELX:IT&_trksid=p3984.m1555.l2649

sean