Hey guys. I was working on a 770 Diesel for a friend today and ran into a little issue. They just got the pump and injectors rebuilt and they had me put it all back together for them since this was their first experience with a diesel engine. No problems there, everything went back together like a charm. Got it buttoned back up, gave it a shot of either and it fired right up and picked up all 6 cylinders right away. I pulled it out of the barn to let it run and work the rest of the air out of the injectors and it probably sat their cracked just over an idle for about 15 minutes. It sounded good and didnt see any issues so I pulled the throttle wide open and at full throttle it developes a slight miss on one cylinder. If you take the throttle back under about 3/4 open the miss goes away and it will sit there purring on all 6 agian. I would call it an injector issue but they were all just rebuilt and the shop they went through does dang good work so I trust that they are right. I guess at this point im stumped, anybody else ever seen this???