CLEANING AND INSPECTION
Solvent cleaning compound MIL-PRF-680 Type III is an environmentally compliant and low toxic
material. However, it may be irritating to the eyes and skin. Use protective gloves and goggles. Use in
well-ventilated areas. Keep away from open flames and other sources of ignition.
Particles blown by compressed air are hazardous. DO NOT exceed 15 psi (103 kPa) nozzle pressure
when drying parts with compressed air. Use a maximum of 30 psi (207 kPa) when cleaning compo-
nents. DO NOT direct compressed air against human skin. Failure to follow this warning may result in
injury or death. Make sure air stream is directed away from user and other personnel in the area. To pre-
vent injury, user must wear protective goggles or face shield.
Remove all gasket material from mounting surfaces.
Clean all parts with solvent cleaning compound and dry with compressed air.
Inspect all parts for damage and replace as necessary.
All parts furnished in repair kits will be used to replace like parts during assembly.
Perform steps 1 and 2 only if bearings were removed.
Heat two bearings (74) in clean engine oil to a temperature not exceeding 350F (176C) and install bearings on crank-
shaft (43) until seated against shoulder.
Install crankshaft (43) in crankcase (7).
Measure distance of two bearings (74) at mounting surfaces. Bearings must extend out of crankcase (7) 0.135 in. (3.43
Turn crankshaft (43) to ensure free movement.
Apply a coat of clean lubricating oil to crankshaft (43) journals.
Apply a coat of clean lubricating oil to new spring (78) and seal (79) and install spring and seal on cover (76).
Install new gasket (77) and cover (76) on crankcase (7) with four bolts (75). Torque one bolt to 80 lb-in. (9 Nm) and one
bolt diagonal from first bolt to 80 lb-in. (9 Nm). Torque other two bolts to 160 lb-in. (18 Nm), then torque first two bolts
to 160 lb-in. (18 Nm).