Iveco VECTOR 8, Техническое и ремонтное руководство

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Figure 37
Figure 38
α
α
Checking crankshaft thrust clearance
The thrust clearance of the crankshaft (2) is checked by placing
a dial gauge (1) with a magnetic base and proceeding as shown
in the figure. The normal assembly clearance is from 0.070 to
0.270 mm.
If a greater clearance is measured, replace the thrust washers
with new ones of the normal thickness or oversized, if
necessary.
The housing washers are not interchangeable with those of the
cap.
Remove again:
-
main bearing housing caps;
-
lubricate the main journals, main bearings and thrust
washers with engine oil;
-
refit the main bearing caps and tighten the screws (2 and
3, Figure 34) to the prescribed torque.
-
Arrange the thrust rings (2) on the central main bearing
housing (1) with the grooves facing the crankshaft shim
adjustment.
Fit the caps (1, Figure 34) back on and tighten the screws
(2, Figure 34) to the prescribed tightening torque.
1
2
When tightening to an angle, use tool 99395216.
- Remove caps from supports.
The backlash between the main bearings and the pins is found
by comparing the width of the calibrated wire (2) at the
narrowest point with the scale on the envelope (1) containing
the calibrated wire.
The numbers on the scale indicate the backlash in mm.
!
Once the screws securing (vertical and lateral) main
bearing caps have been screwed up, they must
compulsorily keep their position during caps
dismounting and remounting successive operations.
1
2
16855
16814
NOTE
22
SECTION 4 - OVERHAUL AND TECHNICAL SPECIFICATIONS
VECTOR 8 ENGINES
Base - April 2006 Print P2D32V001E