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Infiniti QX56 (JA60). Manual - part 477

EM-62

< ON-VEHICLE REPAIR >

CAMSHAFT

5. Install the camshaft sprockets using the following procedure:

• A: LH bank shown

a. Install the camshaft sprockets aligning them with the matching

marks painted on the timing chain (B) and the camshaft sprock-

ets (C) before removal. Align the camshaft sprocket key groove

with the dowel pin on the camshaft front edge at the same time.

Then temporarily tighten camshaft sprocket bolts.

• Install the intake (VTC) (A) and exhaust (B) side camshaft

sprockets by selectively using the groove of the dowel pin

according to the bank for the exhaust (B) side camshaft

sprockets. (Common part used for both exhaust banks.)

NOTE:

Use the groove marked "R" for RH bank and "L" for LH bank.

b. Lock the hexagonal part of the camshaft in the same way as for

removal, and tighten the camshaft sprocket bolts.

Check again that the timing alignment mark on the timing chain

and on each sprocket are aligned.

6. Install the chain tensioner using the following procedure:

NOTE:

LH is shown.

a. Install the chain tensioner.

• Compress the plunger and hold it using a stopper pin when

installing.

• Loosen the slack guide side timing chain by rotating the cam-

shaft hexagonal part if mounting space is small.

b. Remove the stopper pin and release the plunger, and then apply

tension to the timing chain.

Install the chain tensioner cover onto the front cover.

• Apply liquid gasket as shown.

Use Genuine RTV Silicone Sealant or equivalent. Refer to

7. Check and adjust valve clearances. Refer to

EM-18, "Valve

Clearance"

8. Installation of the remaining components is in the reverse order

of removal.

Inspection after Installation

INFOID:0000000005149003

INSPECTION OF CAMSHAFT SPROCKET (INT) OIL GROOVE

WARNING:

• Check when engine is cold so as to prevent burns from any splashing engine oil.

CAUTION:

AWBIA0152ZZ

AWBIA0151ZZ

Chain tensioner bolts

: 6.9 N·m (0.70 kg-m, 61 in-lb)

Chain tensioner cover
bolts

: 9.0 N·m (0.92 kg-m, 80 in-lb)

KBIA2479E

KBIA2547E

CAMSHAFT

EM-63

< ON-VEHICLE REPAIR >

• Perform this inspection only when DTC P0011 is detected in self-diagnostic results of CONSULT III

and it is directed according to inspection procedure of EC section. Refer to

EC-88, "On Board Diag-

nosis Logic"

1. Check engine oil level. Refer to

LU-8, "Inspection"

2. Perform the following procedure so as to prevent the engine from being unintentionally started while

checking.

a. Release fuel pressure. Refer to

EC-489, "Fuel Pressure Check"

b. Disconnect ignition coil and injector harness connectors if practical.
3. Remove IVT control solenoid valve.
4. Crank engine, and then make sure that engine oil comes out from IVT control cover oil hole. End cranking

after checking.

WARNING:

Be careful not to touch rotating parts (drive belts, idler pulley, and crankshaft pulley, etc.).

CAUTION:

• Engine oil may squirt from IVT control solenoid valve installation hole during cranking. Use a

shop cloth to prevent engine oil from splashing on worker, engine components and vehicle.

• Do not allow engine oil to get on rubber components such as drive belts or engine mount insula-

tors. Immediately wipe off any splashed engine oil.

5. Clean oil groove between oil strainer and IVT control solenoid valve if engine oil does not come out from

IVT control valve cover oil hole. Refer to

LU-7, "Schematic"

6. Remove components between IVT control solenoid valve and camshaft sprocket (INT), and then check

each oil groove for clogging.

• Clean oil groove if necessary.

7. After inspection, installation of the remaining components is in the reverse order of removal.

EM-64

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OIL SEAL

OIL SEAL

Removal and Installation of Valve Oil Seal

INFOID:0000000005149004

REMOVAL

1. Remove the camshaft relating to the valve oil seal to be removed. Refer to

EM-53, "Removal and Installa-

tion"

2. Remove the valve lifters. Refer to

EM-53, "Exploded View"

• Correctly identify the location where each part is removed from. Keep parts organized to avoid mixing

them up.

3. Turn the crankshaft until the cylinder requiring new oil seals is at TDC. This will prevent the valve from

dropping into the cylinder.

4. Remove the valve collet using Tool.

CAUTION:

Do not damage the valve lifter holes.

5. Remove the valve spring retainer and valve spring.

CAUTION:

Do not remove the valve spring seat from the valve spring.

6. Remove the valve oil seal using Tool.

INSTALLATION

Installation is in the reverse order of removal.

• Install the valve oil seal using Tool.

• Apply new engine oil on the new valve oil seal joint and seal lip.

• Install the valve oil seal to the specified height "H".

Removal and Installation of Front Oil Seal

INFOID:0000000005149005

REMOVAL

1. Remove the drive belt. Refer to

EM-13, "Removal and Installation"

2. Remove radiator. Refer to

CO-15, "Removal and Installation"

3. Remove drive plate cover.

Tool number

: KV10116200 (J-26336-A)
: KV10115900 (J-26336-20)
: KV10109220 ( — )

WBIA0578E

Tool number

: KV10107902 (J-38959)

WBIA0478E

Tool number

: KV10115600 (J-38958)

Height"H" (without valve spring installed)

Intake and exhaust

: 14.300 - 14.900 mm (0.5630 -
0.5870 in)

WBIA0490E

OIL SEAL

EM-65

< ON-VEHICLE REPAIR >

4. Lock crankshaft using Tool (A).

5. Matchmark crankshaft pulley bolt flange and crankshaft pulley for installation.
6. Remove the crankshaft pulley bolt and crankshaft pulley from

the crankshaft using suitable tool.

7. Remove the front oil seal using suitable tool.

CAUTION:

Do not damage front cover and oil pump drive spacer.

INSTALLATION

1. Apply new engine oil to both the oil seal lip and dust seal lip of the new front oil seal.
2. Install the front oil seal.

• Install the front oil seal so that each seal lip is oriented as

shown.

Tool number

: — (J-47245)

LBIA0455E

KBIA2477E

SBIA0359E

SEM715A

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