Cylinder Head Unit Assembly - Kohler KDI 1903M Workshop Manual

9
7. Fix pump Z into housing V by means of screws T
(Fig. 9.34 - tightening torque at 25 Nm).
8. Position the gear AC onto shaft AB of the pump.
NOTE: You are not required to respect the reference Q gear
AE (Fig. 9.36).
9. Insert washer U and tighten nut AD (tightening
torque at 70 Nm).
Important
•
In the event of assembling screw X1 (tightening
torque at 10 Nm).
•
In the event of assembling screws X2 and X3
(tightening torque at 2 5 Nm).

9.7 Cylinder head unit assembly

9.7.1 Valve stem gasket
Important
•
Carry out the checks described in
proceeding with the following operations.
•
Always replace gasket A with every assembly
•
Lubricate the gaskets A on the inside.
1. Fit the oil seals A on the valve guides B using the
tool ST_08.
9.7.2 Injector sleeves (
1. Insert the seals C in the seats of the sleeve D.
2. Insert the seal E with the convex side facing
upward at the base of the sleeve D.
3. Lubricate the gaskets C.
4. Insert and carefully screw the sleeve D into the
seat of the head F.
NOTE: The sleeve D must not protrude above the surface
of the head BF.
5. Clamp the sleeve D (tightening torque at 30 Nm).
EN 122
ASSEMBLY INFORMATION
Par. 8.6.4
)
Fig 9.36
Fig 9.37
before
Fig 9.38
Fig 9.39