ARMY TM 9-2815-257-24
AIR FORCE TO 38G1-128-2
MARINE CORPS TM 10155A/2815-24/3
5-8. BALANCER SHAFT ASSEMBLY MAINTENANCE - cont.
When removing crankcase cover, be careful not to damage oil seal.
Release crankcase cover (1, Figure 5-7) from cylinder block (8) by removing fifteen screw (2). Carefully
pry crankcase cover from engine crankcase.
Remove cover gasket (3). Discard if damaged or deformed.
Carefully remove assembled balancer shaft (5) and gear (7) from cylinder block (8).
Remove bearing (4) from crankcase cover (1) and bearing (6) from cylinder block (8) only if replacement
Cleaning solvents are flammable and toxic to eye, skin, and respiratory tract. Skin and eye
protections are required when working in contact with cleaning solvents. Avoid repeated or
prolonged contact. Work in well ventilated area only. Keep away from heat, sparks, and
open flame. Do not smoke while using cleaning solvent. Failure to observe this warning
can result in injury or death to personnel.
Clean components with cleaning solvent and a clean rag. Allow to air dry.
Remove any old gasket material or grease from crankcase cover and engine crankcase mating surfaces.
Inspect crankcase cover (1, Figure 5-7) for cracks, deformation, or obvious damage. Inspect mating
surfaces for scratches, burrs, or blemishes. Replace cover if damaged.
Inspect cover gasket (3) for damage or deformation. Replace if damaged in any way.
Inspect gear (7) for broken, chipped, or worn teeth. Replace gear and camshaft (5) as an assembly if gear
is damaged or worn.
Inspect balancer shaft for signs of unusual or uneven wear. Check for obvious damage. Replace if any
damage or excessive wear is suspected.