Setting the engine up and breaking it in.Remember this engine is just being started after a rebuild so that's why it's smoking from the assembly lube and the rack will be set-up to stop the hunting etc etc. Then the oil is changed and the engine painted. These engine's go into Euclid mining rock trucks,and they were in many other equipment/vehicles.The engine has rebuild heads,turbo's, blower, water pump,all internal parts and the air compressor All done in the great north of Canada