1004E10 ENGINE, REMOVED - REMOVE CYLINDER HEAD(S) AND OIL SUMP FOR INSPECTION - INCLUDES POSITIONING ON STAND AND REMOVAL 1004E20 ENGINE - DISMANTLING AND REASSEMBLY FOLLOWING OP.1004E10 - WASH AND CHECK DISMANTLED COMPONENTS - REFITTING CYLINDER HEAD AND OIL SUMP - DOES NOT INCLUDE OPERATIONS ON CYLINDER HEAD AND AUXILIARY UNITS 1004E40 ENGINE, REMOVED - GENERAL OVERHAUL