Removal and Installation

REMOVAL AND INSTALLATION

CAUTION:
Much higher accuracy is required in the rocker arm installation (at the intake side). Therefore, mistakes in the rocker arm installation procedure might cause the operation failure.
At the overhaul, surely tag the set of Rocker arm "A," T-lever and Rocker arm "B" and then remove the set.
At the assembly, install Rocker arm "A," T-lever and Rocker arm "B" to Rocker shaft in accordance with the tag made during removal.









- MD998713: Camshaft Oil Seal Installer


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 FEEDER CONTROL VALVE / O-RING INSTALLATION

CAUTION:

- Do not reuse O-ring.
- Install the O-ring after wrap a tape not having adhesion (such as a tape) round the notch on the oil passage of engine oil feeder control valve to prevent it from damage. The damaged O-ring may cause oil leakage.





1. Apply a little amount of engine oil to the O-ring of engine oil feeder control valve.
2. Install the engine oil feeder control valve to the cylinder head.
3. Tighten the engine oil feeder control valve to the specified torque of 11 ± 1 Nm (98 ± 8 in-lb).

]]B[[ ADJUSTING SCREW INSTALLATION





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

]]C[[ 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, rocker arm shaft assembly and intake.
4. Temporarily install the rocker arm, rocker arm shaft assembly and exhaust.
5. Confirm the each rocker arm and rocker arm shaft assembly are in position and then tighten to the specified torque.
Tightening torque:

M6: 13± 1Nm (115± 8 in-lb)
M8: 31± 3Nm (23± 3 ft-lb)


]]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.