Infiniti QX56 (Z62). Manual — part 647
EM-28
< REMOVAL AND INSTALLATION >
AIR CLEANER AND AIR DUCT
Note the following item, and install in the reverse order of removal.
• Align marks. Attach each joint. Screw clamps firmly.
Inspection
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INSPECTION AFTER REMOVAL
Inspect air duct assembly for crack or tear.
• If damage is found, replace air duct assembly
Clamp tightening torque
: 4.5 N·m (0.46 kg-m, 40 in-lb)
IGNITION COIL
EM-29
< REMOVAL AND INSTALLATION >
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IGNITION COIL
Exploded View
INFOID:0000000006289541
Removal and Installation
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REMOVAL
1.
Remove engine cover. Refer to
.
2.
Remove ignition coil.
CAUTION:
Never impact it.
NOTE:
Installation position of ignition coil depends on cylinder position.
INSTALLATION
1.
Install ignition coil.
CAUTION:
• Install Ignition coil marked with an identification mark (A)
on cylinder No. 5, 6, 7 and 8.
2.
Install engine cover.
1.
Ignition coil (No. 2, 4)
2.
Ignition coil (No. 6, 8)
3.
Spark plug
4.
Rocker cover (bank 2)
5.
Rocker cover (bank 1)
6.
Ignition coil (No. 1, 3)
7.
Ignition coil (No. 5, 7)
Refer to
for symbols in the figure.
JSBIA0388GB
: Engine front
JPBIA3471ZZ
EM-30
< REMOVAL AND INSTALLATION >
INTAKE MANIFOLD
INTAKE MANIFOLD
Exploded View
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Removal and Installation
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REMOVAL
WARNING:
To avoid the danger of being scalded, never drain the engine coolant when the engine is hot.
1.
Remove engine cover and bracket. Refer to
2.
Remove air cleaner case (upper) and air duct. Refer to
3.
Disconnect manifold absolute pressure (MAP) sensor harness connector.
4.
Remove EVAP canister purge control solenoid valve.
5.
Disconnect PCV hoses from intake manifold.
• Add matching marks as necessary for easier installation.
6.
Drain engine coolant from radiator. Refer to
.
CAUTION:
• Perform this step when the engine is cold.
1.
Intake manifold
2.
PCV hose
3.
Clamp
4.
EVAP canister purge control sole-
noid valve
5.
Clamp
6.
EVAP hose
7.
Gasket
8.
Gasket
9.
Electric throttle control actuator
10.
PCV hose
11.
O-ring
12.
Manifold absolute pressure (MAP)
sensor
A.
To rocker cover (bank 2)
B.
To centralized under-floor piping
C.
To rocker cover (bank 1)
Refer to
for symbols in the figure.
JSBIA0402GB
INTAKE MANIFOLD
EM-31
< REMOVAL AND INSTALLATION >
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• Never spill engine coolant on drive belts.
NOTE:
When removing only intake manifold, move electric throttle control actuator without disconnecting the
water hoses.
7.
Remove electric throttle control actuator.
• Loosen mounting bolts in reverse order as shown in the figure.
NOTE:
The figure shows the electric throttle control actuator viewed
from the air duct side.
CAUTION:
• Handle carefully to avoid any impact to electric throttle
control actuator.
• Never disassemble.
8.
Remove intake manifold, using a power tool.
• Loosen mounting bolts in reverse order as shown in the figure.
9.
Remove intake manifold gaskets.
CAUTION:
Cover engine openings to avoid entry of foreign materials.
10. Remove manifold absolute pressure (MAP) sensor, if necessary.
CAUTION:
Handle carefully to avoid any impact to manifold absolute pressure (MAP) sensor.
INSTALLATION
Note the following item, and install in the reverse order of removal.
Intake Manifold
Tighten in numerical order as shown in the figure.
Electric Throttle Control Actuator
JPBIA2362ZZ
: Engine front
JPBIA3470ZZ
: Engine front
JPBIA3470ZZ
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