Infiniti QX56 (Z62). Manual — part 648
EM-32
< REMOVAL AND INSTALLATION >
INTAKE MANIFOLD
• Tighten in numerical order as shown in the figure.
NOTE:
The figure shows the electric throttle control actuator viewed from
the air duct side.
• Perform the “Throttle Valve Closed Position Learning” when har-
ness connector of electric throttle control actuator is disconnected.
Refer to
• Perform the “Idle Air Volume Learning” and “Throttle Valve Closed
Position Learning” when electric throttle control actuator is
replaced. Refer to
and
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ROCKER COVER
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< REMOVAL AND INSTALLATION >
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ROCKER COVER
Exploded View
INFOID:0000000006289545
Removal and Installation
INFOID:0000000006289546
REMOVAL
1.
Remove engine cover and bracket (rear). Refer to
.
2.
Disconnect PCV hose from rocker cover.
3.
Remove air cleaner case (upper) and air duct. Refer to
4.
Move the following parts to the position without the hindrance for work.
• Oil level gauge guide. Refer to
• Power steering fluid reservoir tank bracket. Refer to
• EVAP canister purge control solenoid valve.
.
• Fuel feed hose. Refer to
.
5.
Remove VVEL actuator motor assembly. Refer to
6.
Remove ignition coil. Refer to
.
CAUTION:
Never impact it.
7.
Remove rocker cover.
1.
Oil filler cap
2.
Clamp
3.
PCV hose
4.
Rocker cover (bank 2)
5.
Rocker cover gasket (bank 2)
6.
Rocker cover gasket (bank 1)
7.
Rocker cover (bank 1)
8.
PCV hose
9.
O-ring
10.
PCV valve
11.
Clamp
12. PCV hose
13.
PCV valve
14.
O-ring
A.
To air duct
B.
To intake manifold
C.
Comply with the installation proce-
dure when tightening. Refer to
33, "Removal and Installation"
Refer to
for symbols in the figure.
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EM-34
< REMOVAL AND INSTALLATION >
ROCKER COVER
• Loosen bolts in reverse order shown in the figure.
8.
Remove rocker cover gasket from rocker cover.
9.
Use scraper to remove all traces of liquid gasket from cylinder head & VVEL ladder assembly.
CAUTION:
Never scratch or damage the mating surface when cleaning off old liquid gasket.
10. Remove PCV valve from rocker cover, if necessary.
11. Remove oil filler cap from rocker cover, if necessary.
INSTALLATION
1.
Apply liquid gasket with the tube presser (commercial service
tool) to VVEL ladder assembly (1).
Use Genuine RTV silicone sealant or equivalent. Refer to
GI-22, "Recommended Chemical Products and Sealants"
.
NOTE:
The figure shows an example of bank 1 side.
• Apply liquid gasket on the front and rear side of engine first. [5
mm (0.20 in) + 5 mm (0.20 in) side as shown in the figure]
2.
Install rocker cover gasket to rocker cover.
3.
Install rocker cover.
• Check that rocker cover gasket does not drop from the installation groove of rocker cover.
A
: Bank 2
B
: Bank 1
: Engine front
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: Liquid gasket application point
F
: End surface of VVEL ladder assembly
b
: 4.0 mm (0.16 in)
c
: 2.5 - 3.5 mm (0.098 - 0.138 in)
d
: 5.0 mm (0.20 in)
e
: 10.0 mm (0.39 in)
: Engine front
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ROCKER COVER
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4.
Tighten bolts in two steps separately in numerical order as
shown in the figure.
• Because of the limited working space, use adapter and torque
wrench assembly [SST: KV10119300 ( — )] (A) to tighten
bolts (on the No.7 and No. 8 cylinders) to the specified torque.
5.
Install ignition coil. Refer to
.
CAUTION:
• Install Ignition coil marked with an identification mark (A)
on cylinder No. 5, 6, 7 and 8.
6.
Install VVEL actuator motor assembly. Refer to
7.
Install in the reverse order of removal.
A
: Bank 2
B
: Bank 1
: Engine front
1st step
:
2.0 N·m (0.2 kg-m, 18 in-lb)
2nd step
:
8.3 N·m (0.85 kg-m, 73 in-lb)
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: Engine front
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: Engine front
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