Need some help please

[Mike G]

My truck pumping out huge clouds of blue smoke (smells like oil) after moderate boost ( 40 psi). I have had the turbos looked at and im told there fine. I have replaced the head thinking it was valve guides and apparently it wasnt that either. I dont have excessive blowby but there is a light haze at the end of the tube. If it were a broken ring wouldnt it run rough or have a ton of blowby? The broken ring is what im fearing the most, any thaughts would be greatfull thanks.

 

[jktcummins]

did you by chance look at the crosshatching in the cylinder??? If you had a broke ring it might have scared the cylinder wall

 

[Mike G]

There didnt appear to be any scaring, but I could have easily missed it on 5 or 6 where its hard to see. It sure dont run like its down on a cylinder but I imagine with the large amounts of rotating mass it would be hard to tell. Would a broken compression ring allow all this oil into the cylinder ro woudl it have to be an oil control ring?