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Engines Iveco C10,C13, Cursor 10, Cursor 13. Manual - part 14

SECTION 3 - INDUSTRIAL APPLICATION

CURSOR ENGINES F3A

Base - May 2007

60573

60575

Figure 61

Figure 62

Figure 63

Figure 64

The exact position of piston no.1 at the T.D.C. is obtained
when in the above-described conditions the tool 99360612
(1) goes through the seat (2) of the engine speed sensor into
the hole (3) in the engine flywheel (4).
If this is not the case, turn and adjust the engine flywheel (4)
appropriately.
Remove the tool 99360612 (1).

Set the dial gauge with the magnetic base (1) with the rod on
the roller (2) of the rocker arm that governs the injector of
cylinder no.1 and pre-load it by 6 mm.

With tool 99360321 (7) Figure 60, turn the crankshaft
clockwise until the pointer of the dial gauge reaches the
minimum value beyond which it can no longer fall.

Reset the dial gauge.

Turn the engine flywheel anticlockwise until the dial gauge gives
a reading for the lift of the cam of the camshaft of 4.44

±0.05 mm.

The camshaft is in step if at the cam lift values of 4.44

±0.05 mm

there are the following conditions:

1) the hole marked with a notch (5) can be seen through the

inspection window;

2) the tool 99360612 (1) through the seat (2) of the engine

speed sensor goes into the hole (3) in the engine
flywheel (4).

If you do not obtain the conditions illustrated in Figure 63 and
described in points 1 and 2, proceed as follows:

1) loosen the screws (2) securing the gear (1) to the camshaft

and utilize the slots (see Figure 65) on the gear (1);

2) turn the engine flywheel appropriately so as to bring about

the conditions described in points 1 and 2 Figure 63, it
being understood that the cam lift must not change at all;

3) lock the screws (2) and repeat the check as described

above.

Tighten the screws (2) to the required torque.

77259

SECTION 3 - INDUSTRIAL APPLICATION

CURSOR ENGINES F3A

Base - May 2007

72436

Figure 65

When the adjustment with the slots (1) is not enough to make
up the phase difference and the camshaft turns because it
becomes integral with the gear (2); as a result, the reference
value of the cam lift varies, in this situation it is necessary to
proceed as follows:

1) lock the screws (2, Figure 64) and turn the engine flywheel

clockwise by approx. 1/2 turn;

2) turn the engine flywheel anticlockwise until the dial gauge

gives a reading of the lift of the cam of the camshaft of 4.44
±0.05 mm;

3) take out the screws (2, Figure 64) and remove the gear (1)

from the camshaft.

Turn the flywheel (4) again to bring about the following
conditions:

- a notch (5) can be seen through the inspection window;

- the tool 99360612 (1) inserted to the bottom of the seat

of the engine speed sensor (2) and (3).

77260

Phonic wheel timing

Turn the crankshaft by taking the piston of cylinder no. 1 into
the compression phase at T.D.C.; turn the flywheel in the
opposite direction to the normal direction of rotation by
approximately 1/4 of a turn.

Again turn the flywheel in its normal direction of rotation until
you see the hole marked with the double notch (4) through
the inspection hole under the flywheel housing. Insert tool
99360612 (5) into the seat of the flywheel sensor (6).

Insert the tool 99360613 (2), via the seat of the phase sensor,
onto the tooth obtained on the phonic wheel.

Should inserting the tool (2) prove difficult, loosen the screws
(3) and adjust the phonic wheel (1) appropriately so that the
tool (2) gets positioned on the tooth correctly. Go ahead and
tighten the screws (3).

Mount the gear (2) Figure 65 with the 4 slots (1) centred with
the fixing holes of the camshaft, locking the relevant screws to
the required tightening torque.
Check the timing of the shaft by first turning the flywheel
clockwise to discharge the cylinder completely and then turn
the flywheel anticlockwise until the dial gauge gives a reading
of 4.44

±0.05.

Check the timing conditions described in Figure 63.

Figure 66

Figure 67

SECTION 3 - INDUSTRIAL APPLICATION

CURSOR ENGINES F3A

Base - May 2007

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 68

104262

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

NOTE

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 69

Figure 70

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

The valve rocker arm cover fastening screws (1) shall
be tightened according to the sequence shown in
Figure 70.

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

ENGINE COMPLETION

For all types except F3AE0684P*E904 and F3AE0684N*E907

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 74.

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

F3AE0684P*E904 - F3AE0684N*E907 -
F3AE9687A*E001 - F3AE9687B*E001 -
F3AE9687C*E001

F3AE0684P*E906 - F3AE0684L*E906
F3AE0684P*E905.

Figure 71

Figure 72

99367

99268

NOTE

SECTION 3 - INDUSTRIAL APPLICATION

CURSOR ENGINES F3A

Base - May 2007

Content .. 12 13 14 15 ..