Engines Iveco C10,C13, Cursor 10, Cursor 13. Manual

60518

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

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.

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

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 14.

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.

ENGINE OVERHAUL
ENGINE REMOVAL AT THE BENCH

The

following

instructions

are

prescribed

the

understanding that the engine has previously been placed on
the rotating bench and that removal of all specific
components of the equipment have been already removed
as well. (See Section 3 of the manual herein).
The section illustrates therefore all the most important
engine overhaul procedures.

47571

47570

60519

NOTE

The screws of the connecting rod wires must be
used again up to when the diameter of the
threading (d) measured in zone (L) is not less than
13.4 mm. Otherwise replace the screw.
Before assembly lubricated screw threading with
engine oil.

NOTE

117694

CURSOR ENGINES F3A

SECTION 4 - OVERHAUL AND TECHNICAL SPECIFICATIONS

Base - May 2007

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.

REPAIR OPERATIONS
CYLINDER BLOCK
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 6

Figure 7

Figure 8

Figure 9

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 7.

(Demonstration)

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

60596

NOTE

SECTION 4 - OVERHAUL AND TECHNICAL SPECIFICATIONS

CURSOR ENGINES F3A

Base - May 2007

116810

Figure 10

Figure 11

CYLINDER LINERS MAIN DATA

DETAIL “X”

“Y“ - Selection class marking area

Figure 12

BLOCK WITH CYLINDER LINERS

A 125.000 to 125.013 mm
B 125.011 to 125.024 mm

Selection class

60598

60601

Cylinder liners

CURSOR ENGINES F3A

SECTION 4 - OVERHAUL AND TECHNICAL SPECIFICATIONS

Base - May 2007

47577

16798

60521

Figure 13

Figure 14

Figure 15

Figure 16

Place details 99360706 (2) and plate 99360726 (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 the protrusion of the cylinder liners, using tool
99360334 (2) and tightening screw (1) to 225 Nm torque.
Using a dial gauge (3), measure the cylinder liner protrusion,
from the cylinder head supporting surface, it must be 0.045
to 0.075 (Figure 16); otherwise, replace the adjustment ring
(1, Figure 14) supplied as spare parts having different
thicknesses.

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

Fitting and checking protrusion

Figure 17

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.

60520

0.045 to 0.075

Replacing cylinder liners

Refitting

NOTE

SECTION 4 - OVERHAUL AND TECHNICAL SPECIFICATIONS

CURSOR ENGINES F3A

Base - May 2007

Content .. 24 25 26 27 ..

Engines Iveco C10,C13, Cursor 10, Cursor 13. Manual - part 26