Thanks for all the info-the problem is I dont know much about this engine-I dont know where the components are you have mentioned except a few things like injectors etc-So what I will do is to photograph the engine and if you could help me identify where the components are such as the oil filter for instance, then I could try to trace-there is a definite oil leak as the bay is filling very slowly but it is filling again-also a very small diesel leak where the brass pipe enters the thing u pump where u want to bleed the system-I was told what it was but i cant remember!