2011 INFINITI QX56 Factory Service Manual

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Page 2657 of 5598

INFINITI QX56 2011 Factory Service Manual
CYLINDER HEADEM-95
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If hydraulic pressure inside chain tensioner drops after removal/installation, slack in guide may generate a
pounding no

Page 2658 of 5598

INFINITI QX56 2011 Factory Service Manual
EM-96
< REMOVAL AND INSTALLATION >
OIL SEAL
OIL SEAL
FRONT OIL SEAL
FRONT OIL SEAL : Removal and InstallationINFOID:0000000006289574
REMOVAL
1. Remove the following parts:
Front under cover, using

Page 2659 of 5598

INFINITI QX56 2011 Factory Service Manual
OIL SEALEM-97
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REAR OIL SEAL : Removal and InstallationINFOID:0000000006289575
REMOVAL
1. Remove transmission assembly. Refer to
TM-205, "2

Page 2660 of 5598

INFINITI QX56 2011 Factory Service Manual
EM-98
< UNIT REMOVAL AND INSTALLATION >
ENGINE ASSEMBLY
UNIT REMOVAL AND INSTALLATION
ENGINE ASSEMBLY
Exploded ViewINFOID:0000000006289576
2WD models
JPBIA4257GB
1. Heat shield plate (RH) 2. Engine m

Page 2661 of 5598

INFINITI QX56 2011 Factory Service Manual
ENGINE ASSEMBLYEM-99
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4WD models
Removal and InstallationINFOID:0000000006289577
WARNING:
Situate the vehicle on a flat and solid sur

Page 2662 of 5598

INFINITI QX56 2011 Factory Service Manual
EM-100
< UNIT REMOVAL AND INSTALLATION >
ENGINE ASSEMBLY
3. Install engine slinger on both front right and front left sides of theengine.
4. Hoist the slinger to obtain room for engine assembly. CAUT

Page 2663 of 5598

INFINITI QX56 2011 Factory Service Manual
ENGINE ASSEMBLYEM-101
< UNIT REMOVAL AND INSTALLATION >
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5. Remove A/T assembly. Refer to
TM-205, "2WD : Exploded View" (2WD models) or TM-208, "4WD :
Exploded View" (4

ENGINE ASSEMBLYEM-101
< UNIT REMOVAL AND INSTALLATION >
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5. Remove A/T assembly. Refer to
TM-205, "2WD : Exploded View" (2WD models) or TM-208, "4WD :
Exploded View" (4WD models).
6. Remove steering gear assembly. Refer to ST-41, "
Exploded View".
7. Remove front final drive assembly. Refer to DLN-162, "
Exploded View".
8. Remove exhaust manifold. Refer to EM-40, "
Exploded View".
9. Remove alternator. Refer to CHG-25, "
Exploded View".
Engine Room LH
1. Remove air cleaner and air duct. Refer to EM-27, "Exploded View".
2. Remove A/C compressor. Refer to HA-30, "
Exploded View".
3. Disconnect fuel feed hose and EVAP hose. Refer to EM-43, "
Exploded View".
CAUTION:
Fit plugs onto disconnected hoses to prevent fuel leakage.
Engine Room RH
1. Remove power steering oil pump and reservoir tank. Refer to ST-48, "Exploded View".
2. Disconnect heater hose at heater core side, and fit a plug onto hose end to prevent engine coolant leak-
age.
3. Disconnect ground cable.
4. Disconnect all clips and connectors of the engine harness from vehicle side.
Removal Work
1. Install alternator bracket. Refer to CHG-25, "Exploded View".
Temporarily tighten mounting bolts.
2. Remove intake manifold. Refer to EM-30, "
Exploded View".
3. Remove starter motor. Refer to STR-17, "
Exploded View".
4. Install engine slingers.
5. Lift using a hoist and secure the engine in position.
6. Remove engine mounting bracket (LH, RH) and engine mounting insulator (LH, RH). Refer to EM-98,
"Exploded View".
7. Remove the engine from the vehi cle, avoid interference with the
vehicle body.
CAUTION:
Before and during lifting, always check that any har-
nesses are left connected.
Never damage engine mounti ng insulator and avoid oil/
grease smearing or spills onto engine mounting insulator.
A Engine front slinger (bank 2) B Engine rear slinger C Engine front slinger (bank 1)
Slinger bolts:
: 45.0 N·m (4.6 kg-m, 33 ft-lb)
JPBIA3970ZZ
JPBIA3497ZZ
Revision: 2010 May2011 QX56

Page 2664 of 5598

INFINITI QX56 2011 Factory Service Manual
EM-102
< UNIT REMOVAL AND INSTALLATION >
ENGINE ASSEMBLY
INSTALLATION
Install in the reverse order of removal.
CAUTION:
When replacing an engine or transmission you must make sure the dowels are in

EM-102
< UNIT REMOVAL AND INSTALLATION >
ENGINE ASSEMBLY
INSTALLATION
Install in the reverse order of removal.
CAUTION:
When replacing an engine or transmission you must make sure the dowels are installed correctly
during re-assembly.Improper alignment caused by mi ssing dowels may cause vibration, oil leaks or
breakage of drivetrain components.
InspectionINFOID:0000000006289578
INSPECTION AFTER INSTALLATION
Inspection for Leakage
The following are procedures for checking fluid leakage, lubricant leakage. Before starting engine, check oil/fluid levels includi ng engine coolant and engine oil. If any are less than the
required quantity, fill them to the specified level. Refer to MA-10, "
Fluids and Lubricants".
Follow the procedure below to check for fuel leakage.
- Turn ignition switch to the “ON” position (with engi ne stopped). With fuel pressure applied to fuel piping,
check for fuel leakage at connection points.
- Start engine. With engine speed increased, che ck again for fuel leakage at connection points.
Run engine to check for unusual noise and vibration. NOTE:
If hydraulic pressure inside chain tensioner drops af ter removal/installation, slack in guide may generate a
pounding noise during and just after the engine start. However, this does not indicate a malfunction. The
noise will stop after hydraulic pressure rises.
Warm up engine thoroughly to check that there is no leak age of fuel, or any oil/fluids including engine oil and
engine coolant.
Bleed air from lines and hoses of applic able lines, such as in cooling system.
After cooling down engine, again check oil/fluid levels including engine oil and engine coolant. Refill them to
the specified level, if necessary.
Summary of the inspection items:
*: Power steering fluid, brake fluid, etc. Items Before starting engine Engine running After engine stopped
Engine coolant Level Leakage Level
Engine oil Level Leakage Level
Transmission /
transaxle fluid AT & CVT Models Leakage Level / Leakage Leakage
MT Models Level / Leakage Leakage Level / Leakage
Other oils and fluids* Level Leakage Level
Fuel Leakage Leakage Leakage
Exhaust gases — Leakage —
Revision: 2010 May2011 QX56

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