Iveco Stralis AT/AD. Manual

47576

47571

47570

By means of proper and splined wrenches, untighten the
screws (1) and (2) and remove the under-block (3).

Remove the crankshaft (2) with tool 99360500 (1).

Remove the crankshaft half-bearings (1), untighten the screws
and remove oil spray nozzles (2).
Take down cylinder liners as specified in the relative paragraph
on page 49.

After disassembling the engine, thoroughly clean
disassembled parts and check their integrity.
Instructions for main checks and measures are given
in the following pages, in order to determine whether
the parts can be re-used.

47575

Untighten screws (2) fixing the connecting rod cap (3) and
remove it. Remove the connecting rod-piston assembly from
the upper side. Repeat these operations for the other pistons.

Figure 45

Figure 46

Figure 47

Figure 48

ENGINE F2B

TRALIS

AT/AD

Base - January 2003

A = Selection class Ø 115 to 115.012 mm
B = Selection class Ø 115.010 to 115.022 mm

In case of maximum wear max 0.150 mm or maximum
ovalization max 0.100 mm compared to the values indicated
in the figure, the liners must be replaced as they cannot be
ground, lapped or trued.

540410

CYLINDER BLOCK

540420

Checks and measurements

Internal diameter of the cylinder liners is checked for
ovalization, taper and wear, using a bore dial (1) centesimal
gauge 99395687 (2) previously reset to ring gauge (3),
diameter 115 mm.

If a 115 ring gauge is not available use a micrometer
caliper.

A = Ø 130.200 to 130.225 mm
B = Ø 128.510 to 128.535 mm
C = Ø 130.161 to 130.186
D = Ø 128.475 to 128.500 mm

The figure shows the outer diameters of the cylinder liners
and the relative seat inner diameters.

The cylinder liners can be extracted and installed several
times in different seats, if necessary.

34994

47439

47440

47441

Figure 49

Figure 50

Figure 51

Figure 52

1 = 1st measuring
2 = 2nd measuring
3 = 3rd measuring

Carry out measurings on each cylinder liner at three different
levels and on two (A-B) surfaces, to one another
perpendicular, as shown in Figure 50.

(Demonstration)

Cylinder liners are equipped with spare parts with
“A“ selection class.

ENGINE F2B

TRALIS

AT/AD

REPAIR OPERATIONS

45150

45150a

47533

Figure 53

Figure 54

CYLINDER LINERS MAIN DATA

DETAIL “X”

“A“ = Selection class marking area

Figure 55

47534

BLOCK WITH CYLINDER LINERS

A mm 115.000 to 115.012
B mm 115.010 to 115.022

Selection class

ENGINE F2B

TRALIS

AT/AD

Base - January 2003

47577

77812

16798

35012

Figure 56

Figure 57

Figure 58

Place details 99360706 (1 and 2) and plate 99360724 (4) as
shown in the figure, by making sure that the plate (4) is
properly placed on the cylinder liners.
Tighten the screw nut (1) and remove the cylinder liner (3)
from the block.

Always replace water sealing rings (3, 4 and 5).
Install the adjustment ring (1) on the cylinder liner (2);
lubricate lower part of liner and install it in the cylinder unit
using the proper tool.

Check cylinder barrel protrusion with tool 99360334
(1-2-3-4) and tighten screw (1) to 170 Nm.
With dial gauge 99395603 (5) placed on base 99370415 (6).
Measure the cylinder barrel protrusion compared to the
cylinder head supporting plane, it must be 0,035 to 0,065 mm
(Figure 59); otherwise replace the adjusting ring (1,
Figure 57) fitted with spare parts having different thickness.

When the installation is completed, block the cylinder liners
(1) to the block (2) with studs 99360703 (3).

Fitting and checking protrusion

(Demonstration)

Figure 59

CYLINDER LINER PROTRUSION

49017

The adjustment ring (1) is supplied as spare parts in
the following thicknesses: 0.08 mm - 0.10 mm - 0.12
mm.

Figure 60

ENGINE F2B

TRALIS

AT/AD

540420

Replacing cylinder liners

Removal

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Iveco Stralis AT/AD. Manual - part 15