Fitting The Valves; Installing The Cylinder Head - Iveco VECTOR Series Technical And Repair Manual

38
SECTION 4 - OVERHAUL AND TECHNICAL SPECIFICATIONS

Fitting the valves

Figure 95
- Lubricate the stems of the valves (7) and insert them in
their respective valve guides. Position the bottom plates
(6), springs (4) and top plates (3) on the cylinder head.
Using tool 99368544 (1), compress the springs and fit the
retaining cotters (2).

Installing the cylinder head

Figure 96
- Fit the rings (1 and 3) on the cases (2) and insert them in
the cylinder block.
Figure 97
To reuse the bolts (2) fixing the cylinder heads, check
NOTE
with a micrometer (1) that the diameter of its thread
is no less than 14.5 mm.
Base - April 2006
Figure 98
α
Fit new cylinder head gaskets. Mount the cylinder heads (1).
Lubricate the fixing bolts with "UTDM" oil. Align the cylinder
heads with the tool applied in the holes to fasten the exhaust
manifolds.
103214
Tighten the cylinder head bolts, following the order shown in
the following figure, as follows:
- first phase: pre—torque 70 Nm;
Figure 99
8
4 7
2
6
DIAGRAM OF TIGHTENING SEQUENCE FOR
CYLINDER HEAD BOLTS
Figure 100
82719
α
Apply tool 99395216 (1) to the wrench.
- second phase: angle 240°;
- guard torque: 220 — 390 Nm.
36618
NOTE The screw can be used again as long as the external
diameter of the shank is 14.5 mm long in each point.
VECTOR 8 ENGINES
1 2
6
3 5
4
3
5 1 7
8
37724
24546
37725
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