[RobJ]

you can also check to see if they updated the injection pump lube. Look for a small metal line coming up from the block somewhere (oil galley) and attaching to the injection pump. Oil would come in here. Then they removed the seal on the front shaft and the oil would flow back into the crankcase through the front bearing. Typical Bosch style inline pump lube when the injection has the governor build in.

Maybe...

Rob