(1) Group Number (2) Component/Assembly (3) Maintenance Function (6) Remarks Code (4) Maintenance Level C O Depot D 01 ENGINE 0100 Engine Assembly Inspect 0.2 0.7 Test 1.0 1,37,40 Service 0.5 1,2 G Adjust 1.0 41,42 Replace 32.7 43,145 Repair 16.0 1,7,10,43-45 Overhaul 30.0   1,7,10,44-49, 147,148,155- 161 Mount, Engine Inspect 0.1 2,144,145 Replace 1.6 1,2,43,144- 146,149 0101 Cylinder Head Replace 3.0 1,6 Repair 5.0 1,6,8 Block, Cylinder Repair 10.0 1,6-8 0102 Crankshaft Replace 4.0 1 Pulley, Crankshaft Replace 0.5 1,6 Damper, Vibration Replace 0.5 1,6 Bearings, Crankshaft Replace 4.0 1 Oil Seals, Crankshaft, Front Replace 2.0 1 Oil Seals, Crankshaft, Rear Replace 2.0 1,6,46 0103 Flywheel Replace 3.5 1,6 0104 Pistons, Connecting Rods Rods, Connecting Replace 8.0 1,6 Bearings, Connecting Rod Replace 2.0 1,6 Pistons Replace 8.0 1,6 Rings, Piston Replace 7.0 1,6,10 0105 Valves, Camshaft, and Timing System Cover, Rocker Arm Replace 1.0 1,6 Valves, Intake and Exhaust Replace 3.0 6 Repair 3.0 6,8 Rocker Arm Assembly Replace 2.1 1,6 Springs, Valve Test 0.5 1,8 Replace 2.3 1,6 Rods, Push Replace 3.0 1 Lifters Replace 6.0 1,43 Unit TM 9-2320-280-20-3 Section II.   MAINTENANCE ALLOCATION CHART B-4 Change 1 General Support H Direct Support F (5) Tools and Equipment Ref Code