Remove expansion plug only if necessary.
Remove two expansion plugs (7), retaining rings (8), and washers (9).
Do not remove shaft from support. The support and shaft must be replaced as an
Remove intake rocker arm (10) and exhaust rocker arm (11) from support (12).
Remove nuts (2) and adjusting screws (3) from intake rocker arm (10) and exhaust rocker
Repeat Steps (a), (b), and (c) for other five rocker arms assemblies (1).
c. Cleaning. See Cleaning Instructions (Para 2-12).
See Inspection Instructions
Measure rocker arm bore.
Maximum Allowable Diameter: 0.750 in.
Measure rocker arm support shaft
Minimum Allowable Diameter: 0.746 in.