ARMY TM 9-2815-260-24
AIR FORCE TO 38G1-126-2
MARINE CORPS TM 09244A/09245A-24
Mark bolt positions (B) on timing gear cover before removal to assure that fan pulley is
installed in same position as removed and assure proper belt tension.
Remove hub and fan drive assembly (3).
Remove torsional damper, refer to paragraph 4.9.1.
Remove crankshaft pulley, refer to paragraph 4.9.2.
Remove water pump tube from water pump cover, refer to paragraph 3.8.2.
Remove oil pan, refer to paragraph 4.5.3.
Remove oil pressure regulating valve plug, refer to paragraph 4.5.2.
Remove bolts (5, 6, 10, and 17, Figure 4-62), stud nuts (16), timing gear cover, and gasket.
Cover all openings to prevent entry of foreign material.
Remove timing gear cover, refer to 4.9.3.a.
Remove oil seal (11, Figure 4-62).
Cleaning solvent is flammable and toxic to eyes, skin, and respiratory tract.
Skin and eye protection are required. Avoid repeated/prolonged contact.
Provide adequate ventilation. Failure to comply could result in serious
injury or death.
Compressed air used for cleaning can create airborne particles that may
enter the eyes. Never exceed 30 psi (207 kPa) of pressure. Eye protection
required. Failure to comply could result in serious eye damage or
Thoroughly clean timing gear cover in solvent. Dry with compressed air.
Inspect timing gear cover for cracks or other damage. Replace as required.
Inspect front crankshaft oil seal bore for nicks. Repair or replace as required.
Install timing gear cover, refer to 4.9.3.d.