Here is a little more info, this motor lost #4 injector, with 6200 hrs went ahead and replaced all 4 injectors, engine started up with no problem but had a miss and blowing smoke, found turbo had damage and removed head, when injector broke it had dropped tip into cylinder causing some valve damage as well, had head complete rebuilt and replaced all 4 piston and rings, # 4 cylinder wall had no damage to it at all, this Iveco motor has no glow plugs only intake heater, any other suggestions would be great, thanks