Infiniti M45 (Y34). Manual — part 520
AIR CLEANER AND AIR DUCT
EM-17
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CHANGING AIR CLEANER FILTER
Removal
1.
Unfasten two clips and lift up air cleaner filter along with holder.
2.
Remove air cleaner filter from holder.
Installation
Install in the reverse order of removal.
EM-18
INTAKE MANIFOLD
INTAKE MANIFOLD
PFP:14003
Removal and Installation
ABS000LM
REMOVAL
WARNING:
To avoid the danger of being scalded, never drain engine coolant when engine is hot.
1.
PCV tube
2.
Engine cover rear bracket
3.
EVAP canister purge volume con-
trol solenoid valve
4.
EVAP hose
5.
EVAP tube
6.
EVAP hose
7.
Vacuum gallery
8.
Engine cover front bracket
9.
Vacuum tank
10.
VIAS control solenoid valve
11.
Water gallery
12.
Gasket
13.
Intake manifold lower
14.
Gasket
15.
Water hose
16.
Intake manifold adapter
17.
Electric throttle control actuator
18.
Gasket
19.
Intake manifold upper
20.
Bracket
PBIC2744E
INTAKE MANIFOLD
EM-19
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1.
Remove engine cover (with power tool).
Refer to
EM-12, "Removal and Installation"
.
2.
Release fuel pressure.
Refer to
EC-46, "FUEL PRESSURE RELEASE"
.
3.
Remove air cleaner case and air duct assembly.
Refer to
EM-16, "Removal and Installation"
.
4.
Drain engine coolant when engine is cooled. Refer to
CO-9, "Changing Engine Coolant"
5.
Disconnect fuel tube quick connector on engine side. Refer to
EM-31, "FUEL INJECTOR AND FUEL
.
6.
Remove accelerator wire from throttle drum. Refer to
ACC-2, "Removal and Installation"
7.
Move cooling fan fluid reservoir tank. Refer to
8.
Remove or disconnect intake manifold upper, wiring harnesses, brackets, vacuum hose, vacuum gallery
and PCV hose and tube.
9.
Remove electric throttle control actuator and intake manifold adapter loosening fixing bolts diagonally.
CAUTION:
●
Handle carefully to avoid any shock to the electric throttle control actuator.
●
Do not disassemble.
10. Disconnect water hoses.
11. Loosen bolts in reverse order of illustration to remove intake
manifold upper with power tool.
12. Remove fuel injectors and fuel tube (left and right). Refer to
EM-31, "Removal and Installation"
13. Loosen bolts in reverse order of illustration to remove intake
manifold lower with power tool.
CAUTION:
Cover engine openings to avoid entry of foreign materials.
14. Remove intake manifold gaskets.
PBIC0014E
PBIC0015E
EM-20
INTAKE MANIFOLD
INSPECTION AFTER REMOVAL
Surface Distortion
●
Using straightedge and feeler gauge, inspect surface distortion
of intake manifold lower and intake manifold upper.
●
If it exceeds the limit, replace intake manifold lower or intake
manifold upper.
INSTALLATION
●
Note the following, and install in the reverse order of removal.
Tightening Intake Manifold Lower Bolts
●
Tighten in numerical order as shown in the figure.
NOTE:
No.7 and 8 have longer bolt length than others.
Tightening Intake Manifold Upper Bolts
●
Tighten in numerical order as shown in the figure.
NOTE:
No.4 to 7 have longer bolt length than others.
Installation of Electric Throttle Control Actuator
●
Install intake manifold adapter gasket and electric throttle control actuator gasket so that three protrusions
for installation identification do not face downward.
●
Tighten fixing bolts of electric throttle control actuator equally and diagonally in several steps.
●
After installation perform procedure in
EM-20, "INSPECTION AFTER INSTALLATION"
Connecting Water Hose
Install water hose so that its overlap width for connection is between 27 mm (1.06 in) and 32 mm (1.26 in) (tar-
get: 27 mm, 1.06 in).
Connecting Vacuum Tube
Refer to
INSPECTION AFTER INSTALLATION
●
After installing fuel tubes, make sure there is no fuel leakage at connections in the following steps.
Standard
: 0.1 mm (0.004 in)
PBIC0016E
PBIC0015E
PBIC0014E
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