Rocker Arms and Camshaft

ROCKER ARMS AND CAMSHAFT

REMOVAL AND INSTALLATION

Removal Steps 1-24:

Removal Steps 25-27 & Required Special Tools:

REMOVAL SERVICE POINT
[[A]] ROCKER ARMS AND ROCKER ARM SHAFT REMOVAL
When the rocker arm is removed from the rocker shaft, tag them to show the installation location for the reinstallation of the rocker arm, the T-lever, the piston arm assembly and so on.

INSTALLATION SERVICE POINTS
]]A[[ ENGINE OIL CONTROL VALVE / O-RING INSTALLATION





CAUTION:
^ Never re-use the O-ring.
^ Before installing O-ring, wind sealing tape around the oil passages cut-out area of engine oil control valve, to prevent damage. If the O-ring is damaged, it can cause an oil leak.

1. Apply a small amount of engine oil to the O-ring and then install it to the engine oil control valve.
2. Install the engine oil control valve to the cylinder head.
3. Tighten the engine oil control valve to the specified torque of 11 ± 1 Nm (98 ± 8 inch lbs.).

]]B[[ ADJUSTING SCREW INSTALLATION





When installing provisionally the screw to the rocker arm, project it slightly 3 mm (0.12 inch) from the face of the rocker arm end.

]]C[[ ROCKER SHAFT SPRING/ROCKER ARMS AND ROCKER ARM SHAFT INSTALLATION
1. In accordance with the tags made during removal, install the rocker arm, and other parts to the rocker arm shaft.
2. Install the rocker arm shaft with oil hole to the lower (cylinder head) side.





3. Temporarily install the rocker arm and a rocker arm shaft assembly (intake side).
4. Temporarily install the rocker arm, rocker arm and a rocker arm shaft assembly (exhaust side).
5. Confirm that the rocker arm and rocker arm shaft assembly are in position and then tighten to the specified torque.
Tightening torque:
M6: 13 ± 1 Nm (115 ± 8 inch lbs.)
M8: 31 ± 3 Nm (23 ± 2 ft. lbs.)

]]D[[ CAMSHAFT OIL SEAL INSTALLATION





1. Apply engine oil to the lip area of the oil seal and the front end outside diameter of camshaft.
2. Using special tool MD998713, install the camshaft oil seal.

INSPECTION
CAMSHAFT











Measure the cam height. If it is below the limit, replace the camshaft.