Evening all   Wondered if anyone else has had this....the upper EGR pipe (from manifold to EGR cooler/valve) on my CR170 appears to have cracked, on the "concertina'd" part of the pipe. It's causing quite a loud whine under load, and the area around it at the back of the engine is pretty sooty.   Access looks like a nightmare, as the propshaft & transfer box etc seem to be in the way if accessing from underneath, was wondering if anyone knows how much labour is involved to replace it ?