F510 & F525 Cylinder Head and Valves – REMOVE AND INSTALL ROCKER ARM ASSEMBLY
1. Remove rocker arm cover.
2. Turn crankshaft until piston is at highest position in compression stroke.
3. Remove rocker shaft and arms (A).
IMPORTANT: Mark push rods for reassembly in original locations.
4. Remove push rods (B).
IMPORTANT: Align rocker arms over push rods during assembly.
5. Install push rods and rocker arm assemblies.
6. Check valve clearance. (See Valve Clearance Adjustment in Section 220, Group 15.)