REMOVAL & INSTALLATION
See Figures 1, 2, 3, 4, and 5
Fig. Fig. 1: Single rocker shaft assembly. Note the attaching bolts (2) and shaft retaining screw (3)
Fig. Fig. 2: Double rocker shaft assembly used on 20R, 22R and 22R-EC engines; the rocker arms must be assembled in their original positions
Fig. Fig. 3: Remove the rocker shaft bolts in the correct sequence ...
Fig. Fig. 4: ... then lift the rocker shaft assembly from the cylinder head housing
Fig. Fig. 5: Rocker shaft bolt removal sequence for 4M-E and 5M-E engines; first remove oil union bolt A, then union B
Valve rocker shaft removal and installation is given as part of the various Cylinder Head Removal and Installation procedures.
Perform only the steps of the appropriate Cylinder Head Removal and Installation procedures necessary to remove and install the rocker shafts. All rocker shaft assemblies may require a prybar to remove them from the head. The 5M-GE engine does not utilize rocker arms shafts. The valves are activated directly by the camshaft.