Removal and Installation

REMOVAL AND INSTALLATION









- MD998442: Air Bleed Wire
- MD998443: Lash Adjuster Holder
- 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 piston arm assembly and so on.

[[B]] ROCKER ARMS AND SHAFT REMOVAL





CAUTION:
If the lash adjuster is re-used, clean the lash adjuster. (Refer to lash adjuster inspection Inspection.)

Set special tool MD998443 to prevent the lash adjuster from coming free and falling to the floor.

INSTALLATION SERVICE POINTS

]]A[[ CAMSHAFT INSTALLATION





CAUTION:
Use care to prevent confusion of the right and left bank camshafts.

1. Apply engine oil to the camshaft journals and cams and then install the camshafts.
NOTE:
The camshaft with a longer overall length is for the left bank.





2. Check to see that the dowel pin of the camshaft is located at the position shown.

]]B[[ LASH ADJUSTER INSTALLATION

CAUTION:
If the lash adjuster is re-used, clean the lash adjuster. (Refer to lash adjuster inspection Inspection.)





Fit the lash adjuster onto the rocker arm without allowing diesel fuel to spill out. Fit special tool MD998443 to prevent the lash adjuster from coming free and falling to the floor.

]]C[[ ADJUSTING SCREW INSTALLATION





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

]]D[[ ROCKER ARMS AND SHAFT INSTALLATION





1. Place each rocker arm shaft with the side having the oil holes of the illustrated shape facing down (toward the cylinder head).
2.




Check that the oil holes on each rocker arm shaft are in the positions shown in the illustration.
NOTE:
The intake rocker arm shafts have four bolt holes each.

3. Check that the notch on each exhaust side rocker arm shaft is at the position shown in the illustration.
NOTE:
The exhaust rocker arm shafts have six bolt holes each.

4. According the tags showing the reinstallation locations, install the rocker arms and all other parts on each rocker arm shaft.





5. When installing the rocker arm shaft, check that the identification marks are at the positions shown in the illustration.
6. Tighten the intake rocker arm shaft bolts to the specified torque of 13±1 Nm (115 ± 9 in-lb).
7. Tighten the exhaust rocker arm shaft bolts to the specified torque of 13±1 Nm (115 ± 9 in-lb).
8. Remove the lash adjuster holder (MD998443).

]]E[[ 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.