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