Iveco Stralis AT/AD. Manual — part 52
49036
60668
Figure 170
DETAIL OF PUNCH MARKS ON ENGINE FLYWHEEL FOR PISTON POSITIONS
C
= Hole on flywheel with one reference mark,
corresponding to the TDC of pistons 2-5.
D
= Hole on flywheel with two reference marks, position
corresponding to 54
°.
A
= Hole on flywheel with one reference mark,
corresponding to the TDC of pistons 3-4.
B
= Hole on flywheel with one reference mark,
corresponding to the TDC of pistons 1-6.
VIEW OF
HOLES:
A — B — C
VIEW OF
HOLE:
D
49037
Figure 171
α
!
If the teeth of the ring gear mounted on the engine
flywheel, for starting the engine, are very damaged,
replace the ring gear. It must be fitted after heating the
ring gear to a temperature of approx. 200
°C.
!
The crankshaft has a locating peg that has to couple
with the relevant seat on the engine flywheel.
Position the flywheel (1) on the crankshaft, lubricate the
thread of the screws (2) with engine oil and screw them down.
Lock rotation with tool 99360351 (3). Lock the screws (2) in
three phases.
First phase: pre-tightening with torque wrench (4) to a torque
of 120 Nm (12 kgm).
α
Second and third phase: closing to angle of 60
° + 30° with tool
99395216 (1).
Figure 172
Fitting engine flywheel
S
TRALIS
AT/AD
194
F3A ENGINE
Base - January 2003
ENGINE FLYWHEEL
72436
Figure 173
Figure 174
Figure 175
Figure 176
Position the crankshaft with the pistons 1 and 6 at the top dead
centre (T.D.C.).
This situation occurs when:
1.
The hole with reference mark (5) of the engine flywheel
(4) can be seen through the inspection window.
2.
The tool 99360612 (1), through the seat (2) of the engine
speed sensor, enters the hole (3) in the engine flywheel (4).
If this condition does not occur, turn the engine flywheel (4)
appropriately.
Remove the tool 99360612 (1).
- Fit the idle gear (1) back on and lock the screws (2) to the
required torque.
60571
- Apply the gauge 99395219 (1). Check and adjust the
position of the link rod (3) for the idle gear. Lock the screw
(2) to the required torque.
60570
Fit the camshaft (4), positioning it observing the reference
marks (
→) as shown in the figure.
Lubricate the seal (3) and fit it on the shoulder plate (2).
Mount the shoulder plate (2) with the sheet metal gasket (1)
and tighten the screws (5) to the required torque.
73843
195
S
TRALIS
AT/AD
F3A ENGINE
Fitting camshaft
60572
Figure 177
Figure 178
Position the gear (2) on the camshaft so that the 4 slots are
centred with the holes for fixing the camshaft, without fully
locking the screws (5).
Using the dial gauge with a magnetic base (1), check that the
clearance between the gears (2 and 3) is 0.073 — 0.195 mm;
if this is not so, adjust the clearance as follows:
- Loosen the screws (4) fixing the idle gear (3).
- Loosen the screw (2, Figure 175) fixing the link rod. Shift
the link rod (3, Figure 175) to obtain the required
clearance.
- Lock the screw (2, Figure 175) fixing the link rod and
screws (4, Figure 177) fixing the idle gear to the required
torque.
Figure 179
44908
Fit the seals (1) (2) (3) on the injectors.
!
Before refitting the rocker-arm shaft assembly, make
sure that all the adjustment screws have been fully
unscrewed.
Using tool 99360144 (3), fasten the blocks (4) to the rocker
arms (2).
Apply the tool 99360553 (1) to the rocker arm shaft (5) and
mount the shaft on the cylinder head.
73533
5
Fitting pump-injectors
Fitting rocker-arm shaft assembly
Mount:
- The injectors (2) and, using a torque wrench, lock the
bracket fixing screws to a torque of 26 Nm.
- The exhaust brake cylinders (1) and (4) and, using a
torque wrench, fix them to a torque of 19 Nm.
- The crosspieces (3) on the valve stem, all with the largest
hole on the same side.
Figure 180
S
TRALIS
AT/AD
196
F3A ENGINE
Base - January 2003
197
S
TRALIS
AT/AD
F3A ENGINE
Camshaft timing
Apply the tool 99360321 (7) and the spacer 99360325 (6) to
the gearbox (3).
- Mount the engine brake lever retaining springs (3).
- Connect the pipe (2) to the engine brake cylinders (4) and
to the cylinder with the engine brake solenoid valve (1).
Figure 181
Figure 182
Figure 183
45261
Lock the screws (2) fixing the rocker-arm shaft as follows:
- 1
st
phase: tightening to a torque of 100 Nm (10 kgm) with
the torque wrench (1);
- 2
nd
phase: closing with an angle of 60
° using the tool
99395216 (3).
60574
71776
71777
Figure 184
Mount the electric wiring (2), securing it on the
electro-injectors with a torque screwdriver (1) to a torque of
1.36 - 1.92 Nm.
α
!
The arrow shows the direction of rotation of the
engine when running.
Using the above-mentioned tool, turn the engine
flywheel (1) in the direction of rotation of the engine
so as to take the piston of cylinder no.1 to
approximately the T.D.C. in the phase of combustion.
This condition occurs when the hole with one
reference mark (4), after the hole with two reference
marks (5) on the engine flywheel (1), can be seen
through the inspection window (2).
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст