Iveco Daily. Manual — part 29
A. Stroke start 82
° ± 2 °C.
B.
Stroke at 97
° ≥ 7 mm
Stroke at 110
° ≤ 10.5 mm
The stroke of 7 mm within less than 60”
Water blow-by with thermostat and valve closed
≤ 2 l/h
543212
Electromagnetic pulley
50685
50686
41128
50687
50822
Figure 193
Figure 194
Figure 195
Figure 196
Figure 197
ELECTROMAGNETIC PULLEY SECTION
Use a thickness gauge (3) to check that the distance between
impeller (1) and sealing ring (2) is 0.56
÷ 1.08 mm.
Also check that there are no cracks in pump body. If there
are, replace the whole water pump.
By-pass type thermostat (1) is inserted into the support (2)
fixed to cylinder heads and it does not need any adjustment.
If there are any doubts about its serviceability, replace it.
The thermometric switch/transmitter and water tempera-
ture sensor are fitted on the thermostat body.
Specifications
*
Torque that can be entered at 1000 rpm
and at 20
°C
23 Nm
*
Torque that can be transmitted at 20_C
with the clutch run in
43 Nm
Voltage
12 Volt
Consumption
24 W
When cooling fluid temperature reaches the value of
94
°
± 2°C, thermometric switch allows electromagnet (1)
to be supplied and that, becoming magnetized, it attracts
movable plate (2) thus causing hub (4) to become integral
with electromagnetic joint (3).
543210
Water pump
WATER PUMP LONGITUDINAL SECTION
1. Pump body - 2. Bearing locking screw - 3. Pump driving
shaft complete with bearing - 4. Sealing ring - 5. Impeller
A = 0.56
÷ 1.08 mm; assembly clearance between impeller
and sealing gasket for water pump body.
543250
Thermostat
ENGINES 8140.43R/B/S/N
98
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Base - May 2004
Insert the pipe (2) with the thermostat box (1) into the water
pumpe (3) and fit the parts assembled in this manner onto
the crankcase and onto the cylinder head.
TIMING AND AUXILIARY MEMBER
CONTROL
Figure 198
Figure 199
Figure 200
Figure 201
Figure 202
Fit new seal rings (2) and split rings (3) on the connecting pipe
(4) and insert this into the thermostat box (1).
50688
50689
Insert the reaction pin (2) into its seat in the water pumpe (1).
Fit the guard (3) and the fixed tightener (4).
50689
Fit the mobile tightener mounting without locking the nut (5)
fixing the roller (4).
Insert, between barrel (1) and push rod (2), a special wrench
(3) so as to annul push rod pressure on belt tightener roller
(4).
41818
61900
Check whether cylinder 1 piston is at TDC.
This condition takes place when tool 99395214 (1) pin (2)
is fitted into engine flywheel (3) slit (
⇒) and control gear hole
(5) and timing gear (4) are facing downward.
Setting the timing system
As spares, the screws (4) are supplied with the
thread pre-treated with LOCTITE 506 sealant.
If they are reused, clean the thread thoroughly and
apply IVECO 1905683 sealant on the first 15 mm.
NOTE
ENGINES 8140.43R/B/S/N
99
D
AILY
Base - May 2004
86144
50711
Figure 203
Figure 204
Figure 205
Figure 206
Figure 207
45074
- Make coincide notch (1) engraved on camshaft driving
toothed pulley, with that (2) engraved on valve tappets
cover.
86143
61900
- Fit toothed belt (1);
- fit lower cover (4) and tighten fastening screws and nuts
to prescribed torque;
- remove tool (3) so as pushing rod (2), acting on belt
tightener (5), makes toothed belt taut (1);
- remove engine flywheel (3) slit (
⇒) from tool 99395214
(1) pin (2);
- apply a torque of 28
÷ 30 Nm to the crankshaft (3) to
tension the belt (1) slightly;
Use tool 99395849 to check timing belt tension (1) which
must be 90
÷115 Hz in point A.
Fit upper cover (1).
- Turn the crankshaft slowly in the direction of rotation by
two turns and check that hole (5) in gear (4) is facing
downwards and that the pin (2) of the tool (1) is inserted
in the slot (à) through the flywheel (3) when the timing
belt is taut; the notches (1 and 2, Figure 203) must be
aligned.
ENGINES 8140.43R/B/S/N
100
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AILY
Base - May 2004
Fit the electromagnetic coupling (2) onto the water pump
shaft (3) and tighten the nuts (1) to the required torque.
Checking
and
aligning
electromagnetic
coupling pulleys
Fit the puller key (5), puller (4) and measure the distance Y
about 88.9 to 90.1 mm.
62075
50696
Figure 208
Figure 209
Figure 210
Figure 211
Fit the hub (1), washer (2) and retaining nut (3).
Block rotation of the hub (1) and tighten the nut (3) in two
stages.
41808
Key the pulley (1) with the spacer, if any, found on disassem-
bly or determined as described in ”Checking crankshaft pulley
alignment”; block engine flywheel rotation with tool
99360306 and tighten the setscrew with a torque wrench to
the required torque.
1st step: tightening with torque wrench at 40 Nm torque;
2nd step: closing with 110
° ± 10° angle.
41824
By means of thickness gauge (1) check the air gap that should
be of 0.25
÷ 0.45 mm.
1
α
The hub (2) locking nut is left-handed. This nut (3)
must be replaced at every dismantling.
NOTE
Angle closing is performed with tool 99395216.
NOTE
ENGINES 8140.43R/B/S/N
101
D
AILY
Base - May 2004
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