Cylinder Head Unit Assembly - Kohler KDI 2504TM Workshop Manual

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).
9.7.3 Injectors projection
1. Insert the injector G inside the sleeve H.
2. Mount the injector fixing bracket M and secure it with
the screw N, without performing the calibration.
3. Check protrusion of injectors by means of the tool
ST_03 (Fig. 9.44), check the projection of the injector,
which must range between 1.68 ÷ 2.42 mm.
NOTE : if the value detected does not correspond, replace
gasket Q with a different thickness.
ASSEMBLY INFORMATION
Par. 8.6.4
)
before
Fig 9.38
Fig 9.39
Fig 9.40
Fig 9.41
9
125
EN