2011 INFINITI QX56 Factory Service Manual

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Page 2633 of 5598

INFINITI QX56 2011 Factory Service Manual
TIMING CHAINEM-71
< REMOVAL AND INSTALLATION >
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Bolt (A) of fuel pump connector protector (1) cannot be
installed after installing valve timing control cover. Therefor

Page 2634 of 5598

INFINITI QX56 2011 Factory Service Manual
EM-72
< REMOVAL AND INSTALLATION >
TIMING CHAIN
d. Being careful not to move seal ring from the installation groove,align dowel pins on front cover with dowel pin holes (C) to install
valve timing co

Page 2635 of 5598

INFINITI QX56 2011 Factory Service Manual
TIMING CHAINEM-73
< REMOVAL AND INSTALLATION >
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Check for cracks and any excessive
wear at link plates and roller
links of timing chain. Replace timing chain if necessa

TIMING CHAINEM-73
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Check for cracks and any excessive
wear at link plates and roller
links of timing chain. Replace timing chain if necessary.
INSPECTION AFTER ASSEMBLY
Inspection for Leakage
The following are procedures for chec king fluid leakage, lubricant leakage. Before starting engine, check oil/fluid levels including 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, check again for fuel leakage at connection points.
Run engine to check for unusual noise and vibration.
NOTE:
If hydraulic pressure inside chain tensioner drops after 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 applicable 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. A: Crack
B: Wear
JPBIA0091ZZ
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
Revision: 2010 May2011 QX56

Page 2636 of 5598

INFINITI QX56 2011 Factory Service Manual
EM-74
< REMOVAL AND INSTALLATION >
CAMSHAFT
CAMSHAFT
Exploded ViewINFOID:0000000006289568
1.VVEL actuator motor assembly
(bank 2) 2. Gasket 3.
VVEL actuator ho
using assembly
(bank 2)
4. Washer 5.

Page 2637 of 5598

INFINITI QX56 2011 Factory Service Manual
CAMSHAFTEM-75
< REMOVAL AND INSTALLATION >
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Removal and InstallationINFOID:0000000006289569
REMOVAL
CAUTION:
Never loosen adjusting bolts (A), mounting bolt
s (black c

Page 2638 of 5598

INFINITI QX56 2011 Factory Service Manual
EM-76
< REMOVAL AND INSTALLATION >
CAMSHAFT
Loosen mounting bolts (gold color) in the reverse order asshown in the figure.
CAUTION:
Never loosen adjusting bolts and mounting bolts (black color).

Page 2639 of 5598

INFINITI QX56 2011 Factory Service Manual
CAMSHAFTEM-77
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a. Apply a continuous bead of liquid gasket with tube presser
(commercial service tool) to the VVEL ladder assembly as
shown

Page 2640 of 5598

INFINITI QX56 2011 Factory Service Manual
EM-78
< REMOVAL AND INSTALLATION >
CAMSHAFT
1. Measure the valve clearance. Refer to EM-12, "Inspection".
2. Remove VVEL ladder assembly and exhaust camshaft. Refer to EM-75, "
Removal and Installat

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