Well this excavator has been at the Volvo dealer for smoking. They changed the turbo, 1 injector and the cylinder head and inspected the cylinders they all look good supposedly it got good compression and no blow by and it still got oil coming from the exhaust port. So the dealer said rings now.So we Brought it back to our shop to figure it out or something. They want us to check it out, I’ve seen pictures and video but I not sure how much it ran since they changed the head and how hard I’ll know more tomorrow if I have the adapter for this motor for compression and cylinder leak down but kinda thinking about working it a hour to see what happens to smoke any suggestions? Or thought would be awesome