2008 INFINITI FX35 mount

INTAKE MANIFOLD COLLECTOREM-19
< SERVICE INFORMATION > [VQ35DE]
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INTAKE MANIFOLD COLLECTOR
ComponentINFOID:0000000001325710
Removal and InstallationINFOID:0000000001325711
REMOVAL
WARNING:
 To avoid the danger of being scalded, never dr
ain engine coolant when the engine is hot.
 Gasket for intake manifold collector (upper) is secu red together with mounting bolt for intake mani-
fold collector (lower). Thus, even when only gasket for upper side is replaced, gasket for lower side
must be also replaced.
1. Electric throttle control actuator 2. Gasket 3. Vacuum hose
4. EVAP canister purge volume control
solenoid valve
5. Bracket 6. Intake manifold collector (upper)
7. Intake manifold collector cover 8. Gasket 9. Water hose
10. Bracket 11. Water hose 12. PCV hose
13. Intake manifold collector (lower)
SBIA0585E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

EM-20
< SERVICE INFORMATION >[VQ35DE]
INTAKE MANIFOLD COLLECTOR
1. Remove engine cover with power tool.
2. Disconnect water hoses from intake manifold collector (upper), attach blind plug to prevent engine coolant
leakage.
CAUTION:
 Perform this step when the engine is cold.
 Do not spill engine coolant on drive belts.
3. Remove air cleaner case and air duct. Refer to EM-17, "
Component".
4. Remove electric throttle control actuator as the following:
a. Disconnect harness connector.
b. Loosen mounting bolts in reverse order as shown in the figure. CAUTION:
 Handle carefully to avoid an y shock to electric throttle
control actuator.
 Do not disassemble.
5. Remove fuel sub-tube mounting bolt to disconnect from r ear of intake manifold collector (lower). Refer to
EM-45, "
Component".
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).
SBIA0486E
KBIA0957E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

INTAKE MANIFOLD COLLECTOREM-21
< SERVICE INFORMATION > [VQ35DE]
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8. Loosen mounting bolts in reverse order of illustration to remove
intake manifold collector (upper) with power tool.
9. Remove PCV hose [between intake manifold co llector (lower) and rocker cover (right bank)].
10. Loosen mounting bolts in reverse order as shown in the figure, and remove intake manifold collector cover, gasket, intake man-
ifold collector (lower) and gasket with power tool.
CAUTION:
Cover engine openings to avoid entry of foreign materials.
INSPECTION AFTER REMOVAL
Surface Distortion
 Check the surface distortion of both the intake manifold collector
(upper and lower) mating surfaces with a straightedge and a feeler
gauge.
 If it exceeds the limit, replace intake manifold collector (upper and/ or lower).
INSTALLATION
Note the following, and install in the reverse order of removal.
Part Installation Direction
PBIC0773E
PBIC0774E
Limit : 0.1 mm (0.004 in)
PBIC0775E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

EM-22
< SERVICE INFORMATION >[VQ35DE]
INTAKE MANIFOLD COLLECTOR
Referring to front marks, install parts shown in figure.
Intake Manifold Collector (Lower)
Tighten mounting bolts 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 specifiedtorque below.
 Shank length under bolt head varies with bolt location. Install
mounting bolts while referring to numbers shown below and in the
figure. (Bolt length does not include pilot portion.)
 Tighten mounting bolts 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.
 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 positioning no-protrusion surface upward or downward.
PBIC0776E
PBIC0774E
: 5.9 N·m (0.6 kg-m, 52 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
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

EM-24
< SERVICE INFORMATION >[VQ35DE]
INTAKE MANIFOLD
INTAKE MANIFOLD
ComponentINFOID:0000000001325712
Removal and InstallationINFOID:0000000001325713
REMOVAL
1. Release fuel pressure. Refer to
EC-87, "Fuel Pressure Check".
2. Remove intake manifold colle ctors (upper and lower). Refer to EM-19, "
Component".
3. Remove fuel tube and fuel injector assembly. Refer to EM-45, "
Component".
4. Loosen mounting bolts and nuts in reverse order as shown in the figure to remove intake manifold with power tool.
5. Remove gaskets. CAUTION:
Cover engine openings to avoid entry of foreign materials.
INSPECTION AFTER REMOVAL
Surface Distortion
1. Harness bracket 2. Intake manifold 3. Gasket
SBIA0487E
PBIC0778E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

INTAKE MANIFOLDEM-25
< SERVICE INFORMATION > [VQ35DE]
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 Check the surface distortion of the intake manifold mating surface
with a straightedge and a feeler gauge.
 If it exceeds the limit, replace intake manifold.
INSTALLATION
Note the following, and install in the reverse order of removal.
Intake Manifold
 If stud bolts were removed, install them and tighten to the specified torque below.
 Tighten all mounting bolts and nuts to the specified torque in two or more steps in numerical order shown in the figure. Limit : 0.1 mm (0.004 in)
PBIC0870E
: 10.8 N·m (1.1 kg-m, 8 ft-lb)
1st step: : 7.4 N·m (0.75 kg-m, 5 ft-lb)
2nd step and after: : 29.0 N·m (3.0 kg-m, 21 ft-lb)
PBIC0778E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

EXHAUST MANIFOLD AND THREE WAY CATALYST
EM-27
< SERVICE INFORMATION > [VQ35DE]
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6. Using the heated oxygen sensor wrench (SST), remove heated
oxygen sensors 2 (bank 1 and bank 2).
CAUTION:
 Be careful not to damage heated oxygen sensor.
 Discard any heated oxyg en sensor which has been
dropped onto a hard surface such as a concrete floor,
replace with a new sensor.
7. Remove exhaust mounting bracket between three way catalysts (right and left bank) and transmission. Refer to EX-3
.
8. Remove three way catalysts (right and left bank).
9. Disconnect air fuel ratio sensor 1 (bank 1 and bank 2) harness connectors and remove harness clip.
10. Using the heated oxygen sensor wrench (SST), remove air fuel ratio sensor 1 (bank 1 and bank 2).
CAUTION:
 Be careful not to damage air fuel ratio sensor.
 Discard any air fuel ratio sen sor which has been dropped
onto a hard surface such as a concrete floor, replace with
a new sensor.
11. Remove water pipe and heater pipe on both right and left side. Refer to CO-29, "
Component".
12. Remove exhaust manifold cover (right and left bank).
13. Loosen mounting nuts in the reverse order as shown in the fig- ure to remove exhaust manifold with power tool.
NOTE:
Disregard the numerical order No. 7 and 8 in removal.
14. Remove gaskets. CAUTION:
Cover engine openings to avoid entry of foreign materials.
INSPECTION AFTER REMOVAL
KBIA1740E
SBIA0575E
PBIC2042E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

EM-28
< SERVICE INFORMATION >[VQ35DE]
EXHAUST MANIFOLD AND THREE WAY CATALYST
Surface Distortion
 Check the surface distortion of the exhaust manifold mating sur-
face with a straightedge and a feeler gauge.
 If it exceeds the limit, replace exhaust manifold.
INSTALLATION
Note the following, and install in the reverse order of removal.
Exhaust Manifold Gasket
 Install exhaust manifold gasket in direction shown in the figure. (Follow same procedure for both banks.)
Exhaust Manifold
 If stud bolts were removed, install them and tighten to the specifiedtorque below.
 Install exhaust manifold and tighten mounting bolts in numerical
order as shown in the figure.
NOTE:
Tighten nuts No. 1 and 2 in two steps. The numerical order No. 7
and 8 shows second step.
Air Fuel Ratio Sensor 1 and Heated Oxygen Sensor 2
CAUTION: Limit : 0.3 mm (0.012 in)
PBIC1096E
A : Right bank
B : Triangle press
C : Left bank
: Engine front
PBIC4954E
: 14.7 N·m (1.5 kg-m, 11 ft-lb)
PBIC2042E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C