Iveco Stralis AT/AD. Manual

73533

60514

60513

60515

60516

60517

Figure 42

Figure 43

Figure 44

Figure 45

Figure 46

Figure 47

Using tool 99360144 (3), constrain the blocks (4) to the
rockers (2).
Apply tool 99360553 (1) to the rocker holder shaft (5) and
remove the shaft (5) from the cylinder head.

- Unscrew the screws (2) fixing the brackets (3) and

remove the injectors (1).

- Unscrew the screws (4) and remove the exhaust brake

pins (5).

- Unscrew the screws and remove the slave cylinder (6).

- Fit the plugs 99360180 (1) instead of injectors.

- Remove the camshaft (2).

- Unscrew the fixing screws on the cylinder head (3).

- By means of metal ropes, lift the cylinder head (1).

- Remove the seal (2)

Unscrew the screws (2) and remove the engine oil sump (1)
fitted with spacer (3) and seal.

Unscrew the screws and remove suction rose (1).

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60519

60518

Figure 48

Figure 49

Figure 50

Figure 51

Figure 52

Untighten screws (2) fixing the connecting rod cap (3) and
remove it. Remove the connecting rod-piston (1) assembly
from the upper side. Repeat these operations for the other
pistons.

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

47574

Rotate the block (1) to the vertical position.

47570

Using tool 99360500 (1), remove the crankshaft (2).

47571

Remove the main bearing shells (1), unscrew the screws and
take out the oil nozzles (2).
Remove the cylinder liners as described under the relevant
subheading on page 158.

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.

Keep the big end bearing shells in their respective
housings and/or note down their assembly position
since, if reusing them, they will need to be fitted in
the position found upon removal.

Note down the assembly position of the top and
bottom main bearing shells since, if reusing them,
they will need to be fitted in the position found upon
removal.

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A = Selection class

∅ 125 — 125.013 mm

B = Selection class

∅ 125.011 — 125.024 mm

X = Selection class marking area

In case of maximum wear >0.150 mm or maximum
ovalization >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 125 mm.

If a 125 mm ring gauge is not available use a
micrometer caliper.

A = Ø 142.000 to 142.025 mm
B = Ø 140.000 to 140.025 mm
C = Ø 141.961 to 141.986 mm
D = Ø 139.890 to 139.915 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.
Check the state of the cylinder assembly machining plugs: if
they are rusty or there is any doubt at all about their seal,
change them.

34994

60595

60597

Figure 53

Figure 54

Figure 55

Figure 56

1 = 1

measuring

2 = 2

measuring

3 = 3

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 54.

(Demonstration)

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

60596

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60600

Figure 57

Figure 58

CYLINDER LINERS MAIN DATA

DETAIL “X”

“Y“ - Selection class marking area

Figure 59

BLOCK WITH CYLINDER LINERS

A mm 125.000 to 125.013
B mm 125.011 to 125.024

Selection class

60598

60601

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CYLINDER LINERS

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Iveco Stralis AT/AD. Manual - part 42