Content .. 48 49 50 51 ..

Engine Iveco C10/C13/C78/Cursor 13/Cursor 78. Manual - part 50

SECTION 3 - INDUSTRIAL APPLICATION

Clockwise

start-up

and rotation

Adjusting

cylinder

valve no.

Adjusting
clearance

of cylinder

valve no.

Adjusting

pre-loading

of cylinder

injector no.

1 and 6 at TDC

120º

- using an appropriate wrench (4), loosen the adjustment

screw

until

the

pumping

element

the

end-of-stroke;

- tighten the adjustment screw, with a dynamometric

wrench, to 5 Nm tightening torque (0.5 kgm);

- untighten the adjustment screw by 1/2 to 3/4 rotation;
- tighten the locking nut.

FIRING ORDER 1-4-2-6-3-5

The adjustment of clearance between the rockers and rods
controlling the intake and exhaust valves, as well as the
adjustment of pre-loading of the rockers controlling pump
injectors, must be carried out carefully.

Take the cylinder where clearance must be adjusted to the
bursting phase; its valves are closed while balancing the
symmetric cylinder valves.
Symmetric cylinders are 1-6, 2-5 and 3-4.

In order to properly operate, follow these instructions and
data specified on the table.

Adjustment of clearance between the rockers and rods
controlling intake and exhaust valves:

- use a polygonal wrench to slacken the locking nut (1) of

the rocker arm adjusting screw (2).

- insert the thickness gauge blade (3);

- tighten or untighten the adjustment screw with the

appropriate wrench;

- make sure that the gauge blade (3) can slide with a slight

friction;

- lock the nut (1), by blocking the adjustment screw.

Pre-loading of rockers controlling pump injectors:

- using a polygonal wrench, loosen the nut locking the

rocker adjustment screw (5) controlling the pump
injector (6);

ADJUSTMENT OF INTAKE, EXHAUST AND INJECTION ROCKERS

In order to properly carry out the above-mentioned
adjustments, follow the sequence specified in the
table, checking the exact position in each rotation
phase by means of pin 99360612, to be inserted in
the 11

hole in each of the three sectors with 18

holes each.

Figure 66

99272

Intake and exhaust rocker play adjustment and pre-loading of rockers controlling pump injectors

NOTE

Apply silicone LOCTITE 5970 IVECO No. 2992644 on the
blow-by case and form a string (2) of

∅ 1,5 ±,

as shown

in the figure.

Fit the blow-by case (1) within 10’ from sealer
application.

Fit the cover (3) and tighten the fastening screws (2) to the
prescribed torque.

The filter (5) operation is unidirectional, therefore
it must be assembled with the two sight supports
as illustrated in the figure.

Fit the distribution cover (1).

Figure 67

Figure 68

DIAGRAM OF ROCKER ARM CAP FIXING SCREWS

TIGHTENING SEQUENCE

Apply silicone LOCTITE 5970 IVECO n˚ 2992644
on the blow-by case (7) surface of engines fitted
with P.T.O. according to the procedure described
in the following figure.

85480

85481

0.5
0.2

The valve rocker arm cover fastening screws (1)
shall be tightened according to the sequence shown
in Figure 68.

Fit the blow-by case (7) and its gasket and then tighten the
screws (8) to the prescribed torque.
Install the filter (5) and the gaskets (4 and 6).

45363

Figure 69

NOTE

SECTION 3 - INDUSTRIAL APPLICATION

ENGINE COMPLETION

Place gasket (4) on oil sump (1), position spacer (3) and fit the
sump on the engine base by tightening screws (2) to the
specified torque, by complying with the tightening sequence
shown in Figure 73.

For types:

F3AE0684D*B001 - F3AE0684G*B003 -
F3AE0684D*B003.

For types: F3AE0684E*B002 - F3AE0684J*B902.

Fit the suction strainer (1) and tighten the fixing screws to the
prescribed torque.

A. for types: F3AE0684E*B002 - F3AE0684J*B902.

B. for types: F3AE0684D*B001 - F3AE0684G*B003

F3AE0684D*B003.

Figure 70

Figure 71

99367

Figure 72

Figure 73

99268

81871

DIAGRAM OF ENGINE OIL SUMP FIXING SCREWS

TIGHTENING SEQUENCE

45362

SECTION 3 - INDUSTRIAL APPLICATION

Figure 74

Fit the intake manifold (1) and tighten the fixing screws (2) to the
prescribed torque.

Fit the oil filters (1) on the relevant supports as follows:

oil the seals;

screw the filters down for the seals to make contact with
the supporting bases;

tighten the filters to a torque of 35 to 40 Nm.

Figure 75

Figure 76

Figure 77

Mount the support (1) and tighten the fixing screws (3).
Connect the oil pipes (2) to the support (1) tightening the
fittings to the prescribed torque.

99264

99362

Tightening the fixing screws to the prescribed torque, mount:

the starter motor (1);

the control unit (2) and its support;

the oil dipstick (3) in the crankcase.

Check the state of the flexible elements of the
control unit support and change them if they have
deteriorated.

99263

Figure 78

Solely for types:
F3AE0684D*B003 and F3AE0684E*B002
Mount the oil filters (1) on the support as follows:
-

oil the seal;

screw the filters down for the seals to make contact with
the supporting bases;

tighten the filters to a torque of 35 to 40 Nm.

99363

101960

NOTE

SECTION 3 - INDUSTRIAL APPLICATION

Content .. 48 49 50 51 ..