Engines Iveco C10,C13, Cursor 10, Cursor 13. Manual — part 31

73535

Figure 62

Check the bushing in the small end has not come loose and
shows no sign of scoring or seizure; replace it if it does.
The bushing (2) is removed and fitted with a suitable drift (1).
When driving it in, make absolutely sure that the holes for the
oil to pass through in the bushing and small end coincide.
Using a boring machine, rebore the bushing so as to obtain
a diameter of 50.019 — 50.035.

Bushings

74052

Figure 63

Fit the pin (2) and fasten it on the piston (1) with the split rings
(3).

1

2

3

73536

Figure 64

The piston (1) has to be fitted on the connecting rod (2) so
that the graphic symbol (4), showing the assembly position
in the cylinder liner, and the punch marks (3) on the
connecting rod are observed as shown in the figure.

Mounting the connecting rod — piston assembly

60614

Figure 65

To fit the piston rings (1) on the piston (2) use the pliers
99360184 (3).
The rings need to be mounted with the word ”TOP” (4)
facing upwards. Direct the ring openings so they are
staggered 120

° apart.

Mounting the piston rings

32

SECTION 4 - OVERHAUL AND TECHNICAL SPECIFICATIONS

CURSOR ENGINES F3A

Base - May 2007

49030

Fit the bearing shells (1), selected as described under the
heading ”Selecting the main and big end bearing shells”, on
both the connecting rod and the cap.

If reusing bearing shells that have been removed, fit them
back into their respective seats in the positions marked
during removal.

Figure 66

Fitting the big end bearing shells

Fitting connecting rod - piston assemblies
in the cylinder liners

With the aid of the clamp 99360605 (1, Figure 67), fit the
connecting rod — piston assembly (2) in the cylinder liners,
according to the diagram of Figure 68, checking that:

- The openings of the piston rings are staggered 120

° apart.

- The pistons are all of the same class, A or B.

- The symbol punched on the top of the pistons faces the

engine flywheel, or the recess in the skirt of the pistons
tallies with the oil nozzles.

The pistons are supplied as spares in class A and can
be fitted in class B cylinder liners.

60616

Figure 67

NOTE

33

CURSOR ENGINES F3A

SECTION 4 - OVERHAUL AND TECHNICAL SPECIFICATIONS

Base - May 2007

60615

Figure 68

ASSEMBLY DIAGRAM OF CONNECTING ROD — PISTON ASSEMBLY IN CYLINDER LINER

1. Connecting rod — piston assembly — 2. Area of punch marking on the top of the piston,

symbol showing assembly position and selection class — 3. Connecting rod punch mark area.

Checking piston protrusion

On completing assembly, check the protrusion of the pistons from the cylinder liners; it must be 0.23 — 0.53 mm.

34

SECTION 4 - OVERHAUL AND TECHNICAL SPECIFICATIONS

CURSOR ENGINES F3A

Base - May 2007