yes i know but it is good practice to put things back from where they were removed as they wear together . i have cecked the turbo hoses and there is no sign of any oil . the car smokes quite heavily on a downhill gradient with no throttle on until you get to the bottom then you get the puff of blue smoke which aint good and it did not do it before . what i will do is pull the cams out and lift the followers and look between the springs to see if any seals are missing or dislogded. i just hoped threr might be something silly which is a common problem after doing the head