Infiniti G35 (V35). Manual — part 466
INTAKE MANIFOLD COLLECTOR
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1.
Remove engine cover with power tool.
2.
Drain engine coolant, or when water hose is disconnected, attach plug to prevent engine coolant leakage.
Refer to
CO-10, "Changing Engine Coolant"
.
CAUTION:
●
Perform this step when engine is cold.
●
Do not spill engine coolant on drive belts.
3.
Remove air cleaner case and air duct. Refer to
EM-16, "AIR CLEANER AND AIR DUCT"
4.
Remove electric throttle control actuator as follows:
a.
Disconnect harness connector.
b.
Loosen bolts in reverse order as shown in the figure.
CAUTION:
●
Handle carefully to avoid any shock to electric throttle
control actuator.
●
Do not disassemble.
5.
Remove fuel sub-tube mounting bolt to disconnect from rear of intake manifold collector (lower). Refer to
EM-38, "FUEL INJECTOR AND FUEL TUBE"
.
6.
Disconnect vacuum hose and water hose from intake manifold collector (upper).
7.
Remove EVAP canister purge volume control solenoid valve bracket mounting bolt from intake manifold
collector (upper).
KBIA0956E
KBIA0957E
EM-20
INTAKE MANIFOLD COLLECTOR
8.
Loosen bolts in reverse order as shown in the figure to remove
intake manifold collector (upper) with power tool.
9.
Remove PCV hose [between intake manifold collector (lower) and rocker cover (right bank)].
10. Loosen bolts in reverse order as shown in the figure, and
remove the intake manifold collector cover, gasket, intake mani-
fold collector (lower) and gasket with power tool.
INSPECTION AFTER REMOVAL
Surface Distortion
●
Check the surface distortion of both the intake manifold collector
(upper and lower) mating surfaces with straightedge and feeler
gauge.
●
If it exceeds the limit, replace intake manifold collector (upper
and/or lower).
PBIC0773E
PBIC0774E
Limit
: 0.1 mm (0.004 in)
PBIC0775E
INTAKE MANIFOLD COLLECTOR
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INSTALLATION
Note the following, and install in the reverse order of removal.
Indication of Part Installation Direction
Referring to front marks, install parts shown in the figure.
Intake Manifold Collector (Lower)
Tighten in numerical order as shown in the figure.
NOTE:
Tighten mounting bolts to secure gasket (lower), intake manifold col-
lector (lower), gasket (upper), and intake manifold collector cover.
Intake Manifold Collector (Upper)
●
If stud bolts were removed, install them and tighten to the torque specified below.
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Shank length under bolt head varies with bolt location. Install
bolts while referring to numbers shown below and in the figure.
(Bolt length does not include pilot portion.)
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Tighten in numerical order as shown in the figure.
Water Hose
●
Insert hose by 27 to 32 mm (1.06 to 1.26 in) from connector end.
PBIC0776E
PBIC0774E
: 4.9 - 6.9 N·m (0.5 - 0.7 kg-m, 44 - 61 in-lb)
Bolt
M6
×
25 mm (0.98 in)
: 7, 8, 10, 11, 13, 14, 15, 16, 18
M6
×
45 mm (1.77 in)
: 2, 4, 5
M6
×
60 mm (2.36 in)
: 1, 3, 6, 9
M6 Nut
: 12, 17
PBIC0773E
EM-22
INTAKE MANIFOLD COLLECTOR
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Clamp hose at location of 3 to 7 mm (0.12 to 0.28 in) from hose end.
Electric Throttle Control Actuator
●
Install gasket with three protrusions for installation check facing any direction other than upward.
●
Tighten in numerical order as shown in the figure.
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Perform the “Throttle Valve Closed Position Learning” when har-
ness connector of electric throttle control actuator is discon-
nected. Refer to
EC-79, "Throttle Valve Closed Position
●
Perform the “Idle Air Volume Learning” and “Throttle Valve
Closed Position Learning” when electric throttle control actuator
is replaced. Refer to
EC-79, "Idle Air Volume Learning"
KBIA0957E
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