I hate to ask this on a Duramax forum, but we have a Cummins Big Cam in one of our grinders at work that recintly lost the oil pump at wide open. So I have been getting ready to pull it out and noticed that the compressor wheel has play side to side and it seems to drag when I spin it by hand. Can i assume that the turbo is shot? Boss thinks that it ran for 3-4 minutes without oil in the upper end.
