Iveco Daily Euro 4. Manual — part 47
Figure 37
Loosen the straps, then disconnect coolant pipes (1 and 2)
and vacuum pipe (4) from EGR valve (3).
112331
Refitting
For refitting, reverse the operations described for
removal observing following warnings:
- replace gaskets (2 and 3) and the straps with
new parts.
- tighten the screws to the specified torque
value.
- fill expansion tank with coolant.
Figure 38
108633
Place the heat exchanger/valve assembly onto a work bench,
then remove EGR valve (4) fastening screws and take EGR
valve (4) off heat exchanger (1).
Checks and tests
Start up the engine, let it run at rpm’s just a little
over idling and wait for coolant temperature to
reach the value for opening the temperature
switch, then check for no water leaks existing from
cooling circuits tubes.
Figure 39
108632
Loosen the straps, then disconnect coolant pipes (2 and 3)
from EGR valve (6). Loosen screw (7) of strap (8) joining EGR
valve (6) to pipe (9). Remove screws (4), then take heat
exchanger (1), complete with EGR valve (6), off the
overhead.
540730
EGR
HEAT
EXCHANGER
RE-
MOVAL - REFITTING
105027
Remove plug (4) from expansion tank (3).
Arrange special container under the radiator, remove plug
located on radiator right side and drain engine coolant.
Remove oil filling plug (1) and take off sound deadening cover
(2).
Disconnect electrical connection (6) from pressure switch.
Loosen clamps and disconnect coolant vent tube (5).
Remove securing screws and disconnect tank (3) from wall.
Disconnect electrical connection (7) from the level sensor
placed under tank (3).
Loosen clamps and disconnect coolant tube (8) placed under
tank (3).
Removal
Figure 40
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Figure 41
Loosen the straps, then disconnect coolant pipes (1 and 2)
and vacuum pipe (4) from EGR valve (3).
112331
Figure 42
108634
Loosen screw (5) of strap (6) joining EGR valve (4) to pipe
(7).
Remove screws (1), then take EGR valve (4) off the heat
exchanger.
Refitting
For refitting, reverse the operations described for
removal observing following warnings:
- replace gaskets (2 and 3) and the straps with
new parts.
- tighten the screws to the specified torque
value.
- fill expansion tank with coolant.
Checks and tests
Start up the engine, let it run at rpm’s just a little
over idling and wait for coolant temperature to
reach the value for opening the temperature
switch, then check for no water leaks existing from
cooling circuits tubes.
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108626
Figure 43
The exhaust system is made up of three components:
A. system length with hose;
B. catalyst with particulate filter (DPF);
C. silencer.
The exhaust system is manufactured by Arvin Meritor (ArM).
BURNT GAS EXHAUST SYSTEM
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Figure 44
105073
Place the vehicle on a pit or auto lift.
Carry out the following operations by acting from under the
vehicle:
- unscrew nuts (2) securing silencer (3) supporting
bracket (1) to the vehicle chassis;
- unscrew and remove fastening screws (4) of flanges (5)
connecting exhaust silencer (3) and D.P.F. particulate
filter (8);
- remove exhaust silencer (3).
D.P.F. catalyst removal
- unscrew and remove the exhaust gas temperature
sensors at the catalyst inlet 16) and outlet (17);
- unscrew to disconnect couplings (6 and 12) securing
rigid pipes (7 and 11) running to the pressure sensor to
D.P.F. catalyst (8);
- properly secure D.P.F. catalyst (8) to the vehicle chassis;
- unscrew nuts (9) securing D.P.F. catalyst (8) filter
supporting bracket (10) to the vehicle chassis;
- unscrew and remove fastening screws (13) of flanges
(15) connecting D.P.F. catalyst (8) filter to the exhaust
gas outlet pipe from turbine (14);
- remove D.P.F. catalyst (8) filter.
Refitting
Refitting is carried out by reversing the order of the
detachment operations. Moreover, the following
instructions shall be observed:
- check the conditions of the elastic dowels,
taking care to replace the defective ones (if any);
- replace the gaskets with new parts;
- tighten the nuts and screws to the specified
torque.
After the operation has been completed, and in the event
that either the D.P.F. catalyst or the differential sensor
(delta-p) needs replacing, follow the instructions given in the
respective chapters.
Exhaust silencer removal
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REMOVAL/REFITTING OF EXHAUST PIPE ASSEMBLY COMPONENTS (SYSTEMS EQUIPPED
WITH D.P.F. CATALYST)
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