Rocker Arms

REMOVAL
1. Remove cylinder head cover(s).
2. Identify the rocker arm shaft assemblies before removal.





Fig. 56

3. Install auto lash adjuster retainers, Special Tool MD-998443 onto rocker arms (Fig. 56). These retainers hold the lash adjusters into position when the rocker arms are serviced.
4. Loosen the attaching fasteners. Remove rocker arm shaft assemblies from cylinder head.





Fig. 57

5. Mark rocker arm/hydraulic lash adjuster assemblies for reassembly in their original position. Remove rocker arm/hydraulic lash adjuster assembly. Lash adjusters are serviced as an assembly with the rocker arm (Fig. 57).

NOTE: The automatic lash adjusters are precision units installed in machined openings in the valve actuating ends of the rocker arms. Do not disassemble the auto lash adjuster.

INSTALLATION





Fig. 58

1. Install rocker arm and shafts with the FLAT on the shafts facing the timing belt side of the right cylinder head (Fig. 58). For the left cylinder head, install rocker arm and shafts with the FLAT on the shafts facing the transmission side of the engine. Install the retainers and spring clips in their original positions on the exhaust and intake shafts (Fig. 57).





Fig. 59

2. Tighten bolts to 31 Nm (276 in. lbs.) in sequence shown in (Fig. 59).
3. Remove auto lash adjuster retainers Special Tool MD-998443 from rocker arms.
4. Install cylinder head cover(s).