Iveco Stralis AT/AD. Manual — part 21
45633
Figure 113
Figure 114
Figure 115
- Remove any residue (1), with tool 99390772 (2), from
the cylinder head groove.
1
2
- fasten extractor 99342149 (2) to case (3), by tightening
the nut (1), and pull out the case from cylinder head.
45631
1
2
3
45635
- Lubricate sealing rings (3) and fit them to the case (4);
fix tool 99360554 (2) to the cylinder head by means of
bracket A, install the new case, tighten the screw (1),
upsetting the case lower part.
1
2
4
3
A
45632
Figure 116
- Adjust the casing hole (3) with borer 99394043 (1) and
guide bushing 99394014 (2).
1
2
3
A
70
ENGINE F2B
S
TRALIS
AT/AD
Base - January 2003
45636
47585
Figure 117
Figure 118
- Through miller 99394041 (1) and bushing 99394014 (2),
ream the injector seat in the case (3), check the injector
protrusion from the cylinder head plane which must be
0.7 mm.
Using dial gauge (1), check the protrusion of the injector (2)
which must be 0.7 mm.
Checking protrusion of injectors
1
2
3
A
44909
Figure 119
INSTALLATION DIAGRAM FOR
INJECTOR CASE
ENGINE F2B
71
S
TRALIS
AT/AD
47506
47505
47507
Figure 120
Figure 121
Figure 122
541211
Checking cam lift and pin alignment
When the camshaft (4) is on the tailstock (1), check alignment of supporting pin (3) using a centesimal gauge (2); it must not exceed
0.030 mm. If misalignment exceeds this value, replace the shaft.
In order to check installation clearance, measure bush inner diameter and camshaft pin (1) diameter; the real clearance is obtained
by their difference.
If clearance exceeds 0.150 mm, replace bushes and, if necessary, the camshaft.
Place the camshaft (4) on the tailstock (1) and check cam lift (3) using a centesimal gauge (2); values are shown in table on page
20.
1
72
ENGINE F2B
S
TRALIS
AT/AD
Base - January 2003
TIMING GEAR
The bush surfaces must not show any sign of seizing or
scoring; if they do replace them.
47504
47508
Figure 123
Figure 124
MAIN DATA - CAMSHAFT AND TOLERANCES
The surfaces of shaft supporting pin and cams must be extremely smooth; if you see any sign of seizing or scoring, replace the
shaft and the relative bushes.
MAIN DATA - CAMSHAFT BUSHES AND RELATIVE BLOCK SEATS
* Bush inner diameter after installation
541213
Bushes
Measure the bush inner diameters with a baremeter and replace
them, if the value measured exceeds the tolerance value.
To take down and fit back the bushes, use the proper tool
99360487.
ENGINE F2B
73
S
TRALIS
AT/AD
541210
Camshaft
TOLERANCES
TOLERANCE CHARACTERISTIC
SYMBOL
ORIENTATION
Perpendicularity
⊥
POSITION
Concentricity or coaxial alignment
OSCILLATION
Circular oscillation
↗
IMPORTANCE CLASS ASSIGNED TO PRODUCT CHARACTERISTICS
SYMBOL
CRITICAL
IMPORTANT
⊕
SECONDARY
⊝
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