ROCKER ARMS AND PUSH RODS MAINTENANCE - CONTINUED
DISASSEMBLY - CONTINUED
N OT E
Tag components to ensure correct
Remove 12 rocker arm assemblies (9), bushings (10),
six shaft brackets (11), springs (12), two retaining
rings (7), and four washers (8) from rocker shaft
CLEANING AND INSPECTION
WARN I N G
· 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. Failure to do so may
result in injury or death to personnel.
· Particles blown by compressed air are hazardous. DO NOT exceed 15 psi (103 kPa) nozzle pressure
when drying parts with compressed air. DO NOT direct compressed air against human skin. Make sure
air stream is directed away from user and other personnel in the area. To prevent injury, user must
wear protective goggles or face shield. Failure to follow this warning may result in injury to personnel.
Scrape all gasket material from mating surfaces.
Clean all parts and mating surfaces with solvent cleaning compound.
Dry parts with compressed air.
Inspect oil passages to ensure they are clean and unobstructed.
Check clearance between rocker arm assembly and rocker shaft assembly. Replace rocker arm if clearance is larger than
0.005 in. (0.13 mm). For other components and measurements, refer to Table 1.
Diameter of rocker arm bore for bushing
0.8750 to 0.8763 in. (22.23 to 22.26 mm)
Outside diameter of rocker arm bushing
0.8771 to 0.8787 in. (22.28 to 22.32 mm)
Clearance between rocker arm bushing and rocker shaft
0.001 to 0.0035 in. (0.03 to 0.09 mm)
Diameter of rocker shaft
0.7484 to 0.7496 in. (19.01 to 19.04 mm)