Rocker Arm Assembly
- To disassemble rocker arm assembly, remove two retaining screws and one spring retainer.NOTE: Mark all parts in order for correct reassembly.
Remove supports, rocker arms, and tension springs from rocker shafts.
- Inspect clearance between rocker shaft and rocker arm bushings. If clearance exceeds 0.004" (0.10 mm), replace rocker arms or shaft. Inspect contacting surface of rocker arm with cam and replace rocker arm if worn excessively.
- Rocker shafts have screw holes for retaining screws. Screw hole must face front. A retainer spring installing groove is provided on rocker shaft for exhaust. Rocker arms are marked "S" for intake and "E" for exhaust. Marks must face front.
- Assemble rocker arm assembly in reverse of removal and install on cylinder head. Tighten bolts gradually in sequence shown, taking three or four steps. Install oil union between number one rocker shaft support and number one camshaft bearing cap.