Hi
I need your help.
I have recently changed the oil pump and a turbo on my TD5. It began with the oil pump sprocket came loose on the highway.
I have used the car for a few days and today on the highway, there was a loud knocking sound. It knocks along with the speed but it sounds very little at idle. Took me gently home. I´m living next door to a garage and there they listened with a stethoscope but could not immediately locate the sound.
What can it be?

/Jakob "The Swede"