Engine Iveco Vector 8. Manual - part 12

- Remove the engine wiring: disconnect the wiring from

coolant temperature sensor (1), sensors (2 and 14), XJ2
connector from ADEM III (4), atmospheric pressure
sensor (5), fuel temperature sensor (6), electro injector
(7), engine speed sensor (8), timing system speed sensor
(9), common rail fuel pressure sensor (10), common rail
high pressure control solenoid valve (11), turbo—blower
air temperature sensor (12) and air pressure sensor in
the intercooler (13).

Figure 3

Figure 4

- Remove the ADEM III engine management control unit

(2) from its mounting undoing the bolts for the flexible
mountings (3).

- Remove the atmospheric pressure sensor (4) from the

support.

- If present on the application, remove the flexible belt (16)

and the air conditioning compressor (17).

- Completely undo the screw (5) and release the belt (6).
- Remove the alternator complete with bracket.
- Remove the control unit support complete with diesel

filter mounting.

112865

The oil filter blockage sensor (3) and the alternator
(15) are not connected to the engine lead.

NOTE

On the DRAGON and GRIFFON applications, the
fuel filters are fitted in a remote position.

NOTE

103227

- Remove the diesel filter (1) using tool 99360091.

SECTION 3 - INDUSTRIAL APPLICATION

VECTOR 8 ENGINES

Base - April 2006

Print P2D32V001E

Figure 5

103479

- Remove the pipes (1) to the blow-by filter (2) from the

flywheel side.

- Undo the 4 bolts fixing the filter casing to the air intake

manifolds from the turbocharger body to the heat
exchanger (air/air intercooler) removed previously
together with the air filters.

- Loosen the bands (3) on both sides of the hoses near

the turbochargers.

- Undo the bolts from underneath the bracket above the

flywheel to release the manifold (4). Remove the
manifold securing it appropriately.

After having checked the cleanliness inside the
manifold, seal the three ends to preserve it.
Check the wear of the hoses in the case of obvious
signs of cracks or if there is a loss in the normal
flexibility replace them.

NOTE

Figure 6

- Remove the lubrication pipes from both turbines:

disconnect the oil intake pipe (1) from the crankcase at
the top flange on the body of the turbo—blower and the
exhaust pipe (2) from the bottom of the body of the
turbo—blower and from the seat on the sump.

- Also remove the oil pipes at the sump from the blow-by

filter removed previously.

- Remove the band fastening the pipe on the flywheel

casing and then undo it from the flange on the engine
sump.

103228

Figure 7

- Loosen the rail check u-bolt (4) fixing screws.

- Disassemble the assembly of the delivery pipes (1) from

the high pressure pump (2) and the ones on the

electro-injectors;

unscrew the washers (3) with a 99368506 wrench.

- Remove the rail assembly

- Disassemble the diesel fuel exhaust pipes from the

overpressure valve rail (5).

Plug all the pipes in order to prevent possible
contamination. Unscrew the fittings seeing to
protect the seal surfaces.

89790

Figure 8

RAIL ASSEMBLY FOR G-DRIVE / DRAGON /

SPRINKLER APPLICATIONS

Common rail (1), flow limiting device (2), delivery pipes to

the rail from the high pressure pump (3), pressure sensor

(4), overpressure valve (5).

If it is hard to disassemble, loosen the washers of the
electro-injector supply pipes on the rail side, of the
compensation pipes between the rail and the rail
side supply.

- Remove all the diesel return pipes: those of the injectors

and the one from the high—pressure pump.

89791

If there is a malfunction with components (2), (4)
or (5), replace the rail assembly (1).

NOTE

The RAIL assembly for GRIFFON applications is
shown on page 21 of the section 2.

NOTE

On the bench separate the pipes that are between the rail and
the support. Check the conditions of the thread seal conic
surfaces. Plug all pipes in order to prevent contamination

SECTION 3 - INDUSTRIAL APPLICATION

VECTOR 8 ENGINES

Print P2D32V001E

Base - April 2006

- Remove the pipe (1) which connects the pump to the

water/oil heat exchanger fitted between the two banks
and remove the hose (2) between the thermostat body
and the elbow connector on the pump.

Fully drain off the coolant contained in the cooling
pump.

Figure 9

103229

- Support the cooling pump (1) and undo the four fixing

nuts.
Thoroughly release the pump assembly for the inlet
pipes.

- Disconnect the pipes (2) from the rear of the gear casing.

Figure 10

103230

Seal the pipes and the connectors on the pump.

NOTE

- Inspect the hydraulic pump and especially the state of

wear of the teeth of the driving gear (1) (both those
receiving motion from the gearbox and the front teeth
transmitting motion to the pump of the primary cooling
circuit).

- Replace if there is excessive gear wear: lock gear (1)

rotation properly and loosen screw (2). Disassemble the
gear and set the screw aside.

Figure 11

The gear has a left-hand locking screw.

The hydraulic sealing of the pump is assured by a
gasket (3). If the same pump is used again replace the
above mentioned seal before reassembly.

89792

NOTE

SECTION 3 - INDUSTRIAL APPLICATION

VECTOR 8 ENGINES

Base - April 2006

Print P2D32V001E

Figure 12

Figure 13

Figure 14

Figure 15

- Unscrew the three screws (1) fixing the support to the

gearbox and remove the the low—pressure supply pump
(2).

- On the bench, go ahead and remove the support (3) and

separate the low—pressure supply pump (2); in addition,
remove the coupling drive (4).

103475

For G-DRIVE, GRIFFON and SPRINKLER applications

For DRAGON applications

- Disconnect the coolant connecting pipes (1).

89698

It is advisable to plug both the pipes and the ports on
the compressor that has to be shipped for overhaul.

- Unscrew the fixing screws of brakets (13, Figure 15)

- Unscrew the screws (2, Figure 13) fixing the compressor

on the spacer.

NOTE

- Take the compressor to the workbench and separate

the low-pressure pump (if not previously removed ).

Recover the universal joint (1), checking its state of
wear.

- After firmly securing the compressor in a vice, remove

the gear (2) by unscrewing the nut (3) and using a specific
extractor. In addition, remove the fittings (4) and (5).

- Unscrew the screw (13) that fixing the LPP (8) to air

compressor.

- Divide the LPP (8) from air compressor and recover

coupling drive (9) and O-ring (10).

For all applications

81969

NOTE

89697

- Check the state of wear of the coupling drive and its

coupling with the low—pressure pump spindle.

Figure 16

83490

- Remove the starter motor by unscrewing the three nuts

(1).

82205

Figure 17

SECTION 3 - INDUSTRIAL APPLICATION

VECTOR 8 ENGINES

Print P2D32V001E

Base - April 2006

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