Engine Iveco Vector 8. Instruction - page 31

CHANGING PRIMARY SYSTEM PUMP
Removal

The centrifugal pump of the primary cooling system can be
changed as follows:

- Place a big enough container to collect the motor’s

coolant contained in the sections of piping that have to
be removed and in the pump itself.

- Unscrew the retaining ring nut and after loosening the

clamp (1), remove the pipe (2) feeding the tank’s pump.

- Undo the screws fixing the pipe (3) returning to the

pump from the radiator.

Figure 28

- On the top side, undo the screws (1) to free the pipe (2)

from the flange (3) fitted on the pump

- Unscrew the nuts (4) securing the pump to the cover of

the gearbox.

- Use a crowbar to separate the pump from the gearbox

cover.

Figure 29

!

Support the pump to prevent sudden disconnection.

96

SECTION 3 - INDUSTRIAL APPLICATION

VECTOR 8 ENGINES

Base - April 2006

Print P2D32V001E

Figure 30

Figure 31

Figure 32

Figure 33

- After removing the pump, separate the components

from (1) to (7).

- Put the pump on the bench and, using the right pliers,

remove the snap ring (1).

- Remove the drive disc (2).

- Put in a vice and undo the central screw so as to be able

to remove the disc (1).

- Turn the pump and undo the three screws (7, Figure 30)

fixing the cover (6, Figure 30), complete with seal (1).

Fitting

- At the assembly stage, after changing the damaged parts,

assemble all the parts on the bench to complete the
pump.

Change the seal on the cover. If the pump is not
changed, wash to remove any incrustation.

Figure 34

- Fitting the complete pump on the gearbox must include

engaging the teeth (1) on the gear (2) on the drive disc.

- then screw the nuts onto the stud bolts on the gearbox.

- tightening torque 33

÷ 40 Nm.

- then connect the water pipes.

NOTE

SECTION 3 - INDUSTRIAL APPLICATION

97

VECTOR 8 ENGINES

Print P2D32V001E

Base - April 2006

- Restore the electrical connections.
Tightening torque should be as follow:
Terminal 30:

20

÷ 30 Nm

Terminal G:

20

÷ 30 Nm

Terminal 50:

2

÷ 3 Nm

Apply a light layer of Vaseline onto the terminals
to protect them from rusting.

- Check the engine starting.

Figure 35

The starter motor is located on the left-hand side of the
flywheel housing in an area fairly easy to access from the
bottom. Its disassembly requires no special tools and is not
particularly difficult. Proceed as follows:

- Unscrew the nuts (1). Disconnect the electrical

connections of cables (2), (3), (4), (5) and (6).

- Remove the starter motor by unscrewing the nuts (1).

Fitting

- Change the motor with a new one and position it in its

seat after changing the gasket between the flywheel
housing and the motor. Tighten the fixing nut (M12 x
1.75) to a torque of 105

÷ 86 Nm.

!

Before proceeding to work on an electric or
electronic component, make sure the system is not
powered.

It is recommended to mark the cables in order to
make a secure connection in the assembly phase.

Figure 36

REMOVING/REFITTING STARTER MOTOR

Removal

NOTE

NOTE

NOTE Always change the gasket with a new one. Do not

reuse the one removed.

98

SECTION 3 - INDUSTRIAL APPLICATION

VECTOR 8 ENGINES

Base - April 2006

Print P2D32V001E

SECTION 4 - OVERHAUL AND TECHNICAL SPECIFICATIONS

1

VECTOR 8 ENGINES

Print P2D32V001E

Base - April 2006

SECTION 4

Overhaul and technical specifications

Page

GENERAL SPECIFICATIONS

3

. . . . . . . . . . . . . . .

ASSEMBLY CLEARANCE DATA

4

. . . . . . . . . . . .

ENGINE OVERHAUL

10

. . . . . . . . . . . . . . . . . . . . .

- Dismantling the engine at the bench

10

. . . . . . . .

REPAIR OPERATIONS

CYLINDER UNIT

11

. . . . . . . . . . . . . . . . . . . . . .

- Checks and measurements

11

. . . . . . . . . . . . . . .

- Replacing Cylinder Liners

12

. . . . . . . . . . . . . . . .

TIMING SYSTEM

14

. . . . . . . . . . . . . . . . . . . . . . . .

- Camshaft

14

. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

- Checking cam lift and

pin alignment

14

. . . . . . . . . . . . . . . . . . . . . . . . . .

- Replacing the camshaft

idle gear

14

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

- Changing the bushings

16

. . . . . . . . . . . . . . . . . . .

- Changing the tappets

16

. . . . . . . . . . . . . . . . . . .

- Fitting tappets and camshaft

16

. . . . . . . . . . . . . .

OUTPUT SHAFT

16

. . . . . . . . . . . . . . . . . . . . . . . .

- Measuring journals and crankpins

16

. . . . . . . . . .

- Checking main journal alignment

18

. . . . . . . . . . .

- Crankshaft balancing instructions

19

. . . . . . . . . .

- Replacing water pump drive gear

19

. . . . . . . . . .

- Changing the oil pump and

timing system gear

20

. . . . . . . . . . . . . . . . . . . . . .

- Fitting the main bearings

20

. . . . . . . . . . . . . . . . .

- Finding journal clearance

21

. . . . . . . . . . . . . . . . .

- Tightening sequence

21

. . . . . . . . . . . . . . . . . . . .

- Checking crankshaft thrust clearance

22

. . . . . . .

- Camshaft timing

23

. . . . . . . . . . . . . . . . . . . . . . .

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