Rocker Arm and Camshaft Removal and Installation

REMOVAL AND INSTALLATION
Required Special Tools:
- MB991559: Camshaft Oil Seal Installer Adaptor
- MD998442: Air Bleed Wire
- MD998443: Lash Adjuster Holder
- MD998713: Camshaft Oil Seal Installer
Removal Service Point
<> Rocker Arms And Shaft Removal

CAUTION: If the lash adjuster is re-used, clean the lash adjuster.

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

Installation Service Points
>>A<< Camshaft Installation





1. Apply engine oil to the camshaft journals and cams.
2. The camshaft for the right bank has a slit for driving the distributor at the rear end. The camshaft for the left bank has no slit. Be careful to install the correct camshaft in the correct position.

>>B<< Lash Adjuster Installation





CAUTION: If the lash adjuster is re-used, clean the lash adjuster.

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

>>C<< Rocker Arm, Rocker Arm Shaft And Rocker Shaft Spring Installation





1. Rotate the camshaft until the dowel pin on its front end is located as shown in the illustration.

NOTE: Placing the camshaft in the illustrated position minimizes the amount of cam lift, making it easier to install the rocker arm and shaft assemblies.

2. Install the exhaust side rocker arm "C" and shaft assembly to the cylinder head.
3. Install the inlet side rocker arms "A" and "B" and shaft assembly to the cylinder head.





4. Insert the rocker shaft spring to the intake side rocker arm shaft as illustrated.





5. Make sure that the notch in the end of the rocker arm shaft is facing the direction as shown.

>>D<< Camshaft Oil Seal Installation








1. Apply engine oil to the lip area of the oil seal and the front end outside diameter of the camshaft.
2. Using special tools MD998713 and MB991559 (for the left bank only), install the camshaft oil seals.