TM 10-3930-659-34 CHAPTER 4 DIRECT SUPPORT MAINTENANCE Section I.  ENGINE ASSEMBLY MAINTENANCE Paragraph Page Number Paragraph Title Number 4-1 Engine Assembly Compression Test ...................................... .......................... 4-2 4-2 Cylinder Head Valve Lift Check ......................................................................... 4-4 4-3 Engine Assembly Replacement .......................................... .............................. 4-6 4-4 Engine Mounts Replacement ............................................ ................................ 4-10 4-5 Cylinder Head Assembly Replacement  ............................................................ 4-14 4-6 Cylinder Head Assembly Repair ......................................... .............................. 4-19 4-7 Crankshaft Dampener Maintenance ...................................... ........................... 4-28 4-8 Idler Gears Maintenance ................................................................................... 4-36 4-9 Flywheel and Ring Gear Replacement .............................................................. 4-44 4-10 Flywheel Housing Replacement ........................................................................ 4-46 4-11 Rear Oil Seal Replacement ............................................................................... 4-50 4-12 Engine Rocker Arm Assembly and Pushrods Maintenance .............................. 4-54 4-13 Tappets Replacement .............................................. ......................................... 4-60 4-14 Engine Front Cover Replacement ..................................................................... 4-62 4-15 Engine Oil Pressure Regulating Valve Replacement ........................................ 4-66 4-1