Technical data

Apply oil to the valve stem and insert the valve stem into the valve guide. Install the spring,
retainer and retainer lock in order of mention.
To assemble the rocker arms and shaft, first place the rocker shaft in such a manner that the
identification mark (3 mm hole) at the front end of the shaft faces toward the front of
engine. Install the frontmost rocker arm and retain it with a snap ring. Then, install the
assembly in the cylinder head. When tightening the front and rear stays, be sure to install
bolt seats and washers.
Tighten the glow plugs to their specified torque.
Install the nozzle holders and tighten bolts temporarily. After installing the injection lines,
tighten the bolts evenly to the specified torque. Do not reuse injector sealing washers.
Install the glow plug lead wire. (The glow plug, being a taper sealed type, does not require a
gasket.)
2. The cylinder head gasket has already been coated with sealant and therefore must not be further
sealed.
3. Tighten cylinder head bolts to the specified torque in
the illustrated sequence in two to three stages, first
slightly and finally firmly to specification.
4. Replace gaskets and packings with new ones. Apply sealant to specified sealing points.
5. Adjust valve clearance. For adjustment procedures, see "Adjustment of Valve Clearance" under
ADJUSTMENTS.