Iveco daily euro 4, Repair Manual

Page: 44 / 1132

85844
Assembling
Only for the engines featuring intake valve distributing shafts with
tapered shank (full section).
Insert tool 99360608 (8) into the hole of the toothed pulley (7)
and into the corresponding hole of the overhead to prevent
changing the assembly position of the toothed pulley (7) in the
following operations.
Loosen the screw (9) fixing the toothed pulley (7) and, using tool
99340028, drive the pulley (7) out of the camshaft.
See frame C: holding the tightener plate (3) stationary with the wrench
inserted in its hexagon, loosen the fixing screw (2).
Keeping the fixing screw (2) stationary, turn the plate (3) clockwise until its
reference mark
∧
(4) coincides with the reference hole (5) of the fixed
portion of the tightener.
In the above conditions, tighten the screw (2) to a torque of 36
±
4 Nm.
Rotate the engine by two turns in its direction of rotation until the point of
tool 99360615 (1) engagement into the drive shaft is reached. When this
point is exceeded, the drive shaft shall be rotated by two more turns. Verify,
under the above conditions, that reference hole (5) is found within index (4)
as represented in box
C ; otherwise, the aforesaid operations shall be
repeated.
After assembly, the belt (10) tension measured using tool 99395849 must
be as follows in the following points: X, 212
±
12 Hz - X
2
, 178
±
10 Hz.
Then complete assembly by carrying out the steps described for disassembly
in reverse order.
Keeping the screw (2) stationary and using a suitable wrench on the hexagon
of the plate (3) of the tightener, turn it anticlockwise to cover the reference
hole (5) located on the fixed portion of the tightener (see frame
B ).
In the above conditions, tighten the fixing screw (2) to a torque of 36
±
4 Nm.
Tighten screw (9) to the torque values below:
-
screw (9) securing pulley (7) to the distributing shaft with tapered shank
(full section): 90 Nm;
-
screw (9) securing pulley (7) to the distributing shaft with cylindrical
shank (hollow section): 130 Nm.
Remove the tools 99360614 (6) and 99360615 (11) for the timing.
Turn the engine in its direction of rotation by 8 turns to be able to put the
tools (6) and (11) back in to do the timing.
In these conditions, the notches of the timing belt (10) must coincide with
those of the pulley (7) and the gear (12).
Turn the automatic tightener (1) clockwise, positioning it as shown in frame
A .
Turn the timing belt (10) as shown in the figure observing the precautions
below.
Do not bend the timing belt. Arrows indicating the direction of assembly
of the timing belt on the engine are shown on the back of the belt. The
arrows must correspond to the direction of rotation of the belt and the
notches must coincide with those on the pulley (7) and the gear (12).
x = direction of movement of the tightener
y = direction of rotation of the wrench
Do not turn the engine in the opposite direction; if, on turning the
engine, you pass the point for inserting the tools (6) and (11), turn
the engine clockwise by another two turns.
NOTE
NOTE
Only for the engines featuring intake valve distributing shafts with
tapered shank (full section).
If required to fit the timing belt (10) on the pulley (7), remove tool
99360608 (8) and turn the pulley (7) clockwise by no more than
half a pulley tooth. NOTE
Figure 8
16
F1A ENGINE
D
AILY
E
URO
4
Base - March 2006 Print 603.93.651