[1] – Before disassembly mark all parts for location to aid reassembly.
[2] – Remove end retaining rings (A) and slide components off rocker arm shaft (G).
[3] – Remove Adjusting screw (F) from center support. Remove rocker arm shaft from center support.
[4] – Clean all parts of varnish and oil.
[5] –
Replace rocker arm shaft if less than wear limit.
[6] –
Measure inside diameter of rocker arms and rocker shaft supports.
Replace rocker arms or supports if ID is more than wear limit.
[7] – If shaft, support, and arm clearance (support or arm ID minus shaft OD) exceed wear limit, replace all parts.
[8] –
Replace push rod if not within specifications.
[9] – Check the surface of the adjusting screw that contacts the push rod for wear. Replace push rod or adjusting screw if worn.
[10] – Check the rocker arm-to-valve stem cap contact surface for wear. Replace rocker arm if worn.
[11] – Assemble rocker arm assembly.
a. Be sure oil holes (A) are oriented as shown when assembling rocker arm shaft components. Assemble rocker shaft aligning Adjusting screw hole in shaft with Adjusting screw in number one cylinder shaft support (flywheel end).
b. Be sure that rocker arms are installed in same order as removed.
[12] – Install rocker arm assembly. (See Remove and Install Rocker Arm Assembly and Push Rods in this section.)
