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Nissan Pathfinder (2009 year). Manual - part 393

CAMSHAFT

EM-201

< ON-VEHICLE REPAIR >

[VK56DE]

• Measure the diameter of the valve lifter.

Valve Lifter Hole Diameter

• Measure the diameter of the valve lifter hole of the cylinder head,

using suitable tool.

Calculation of Valve Lifter Clearance
(Valve lifter clearance) = (valve lifter hole diameter) – (valve lifter
diameter)

• If the measurement is not within specification, referring to each

specification of the valve lifter diameter and hole diameter, replace
either or both the valve lifter and cylinder head.

INSTALLATION

Install the valve lifters if removed.
• Install removed parts in their original locations.

Install the camshafts. Use the table below for identification of the
RH and LH, and intake and exhaust.

• Install so that the RH bank (B) dowel pins (A) and LH bank (C)

dowel pins (A) at the front of the camshaft face are in the
direction shown.

Standard

: 33.977 - 33.987 mm (1.3377 - 1.3381 in)

JEM798G

Standard

: 34.000 - 34.016 mm (1.3386 - 1.3392 in)

Standard

: 0.013 - 0.039 mm (0.0005 - 0.0015 in)

PBIC0043E

Bank

INT EXH

Identification

paint (front)

Identification

paint (rear)

Identification

rib

INT

Pink

—

Yes

EXH

—

Orange

Yes

INT

Pink

—

EXH

—

Orange

KBIA2523E

WBIA0708E

2009 Pathfinder

EM-202

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[VK56DE]

CAMSHAFT

Install the RH bank (B) and LH bank (D) camshaft brackets (A).
• Install by referring to the installation location mark (E) on the

upper surface.

• Install so that the installation location mark (E) can be correctly

read when viewed from the intake manifold side (C).

• Install No. 1 camshaft bracket using the following procedure:
• C:11 mm (0.43 in)
• D: 2.0 - 3.0 mm (0.079 - 0.118 in) dia.
- Apply liquid gasket to No. 1 camshaft bracket (A) and (B) as

shown.
Use Genuine RTV Silicone Sealant or equivalent. Refer to

CAUTION:

• After installation, be sure to wipe off any excessive liq-

uid gasket outside of application (C) and (D) both on RH
and LH sides.

• Remove completely any excess of liquid gasket inside

bracket.

- Apply liquid gasket (C) to the back side of the LH (A) bank

front cover and RH (B) bank front cover as shown.
Use Genuine RTV Silicone Sealant or equivalent. Refer to

- C: 2.6 - 3.6 mm (0.102 - 0.142 in) dia.

⇐

: Front

AWBIA0164ZZ

WBIA0710E

WBIA0711E

2009 Pathfinder

CAMSHAFT

EM-203

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[VK56DE]

- Position No. 1 camshaft bracket close to the mounting posi-

tion, and then install it to prevent from touching liquid gasket
applied to each surface.

- Temporarily tighten the RH (A) and LH (B) front cover bolts (4

for each bank) as shown.

Tighten the camshaft bracket bolts as follows:

CAUTION:

After tightening the camshaft bracket bolts, be sure to wipe
off excessive liquid gasket from the parts listed below.
• Mating surface of rocker cover
• Mating surface of front cover
• A: RH bank
• B: Exhaust side
• C: LH bank
• D: Intake side
•

⇐

: Front

Tighten the RH (A) and LH (B) front cover bolts (4 for each bank)
as shown to the specified torque.

SBIA0259E

WBIA0706E

Camshaft bracket bolts

Step 1 (bolts 9 - 12)

: 2.0 N·m (0.2 kg-m, 17 in-lb)

Step 2 (bolts 1 - 8)

: 2.0 N·m (0.2 kg-m, 17 in-lb)

Step 3 (all bolts)

: 5.9 N·m (0.6 kg-m, 52 in-lb)

Step 4 (all bolts)

: 10.4 N·m (1.1 kg-m, 92 in-lb)

WBIA0707E

Front cover bolts

: 11.0 N·m (1.1 kg-m, 8 ft-lb)

WBIA0706E

2009 Pathfinder

EM-204

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[VK56DE]

CAMSHAFT

Install the camshaft sprockets using the following procedure:
• A: LH bank shown

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.

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.

Install the chain tensioner using the following procedure:
NOTE:
LH is shown.

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.

Remove the stopper pin and release the plunger to apply ten-
sion 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

Check and adjust valve clearances. Refer to

EM-204, "Inspec-

tion after Installation"

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

Inspection after Installation

INFOID:0000000003939564

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

2009 Pathfinder

CAMSHAFT

EM-205

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[VK56DE]

• 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-576, "Component

Inspection"

Check engine oil level. Refer to

LU-24, "Inspection"

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

Release fuel pressure. Refer to

EC-951, "Fuel Pressure Check"

Disconnect ignition coil and injector harness connectors if practical.

Remove IVT control solenoid valve.

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.

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-23, "System Chart"

Remove components between IVT control solenoid valve and camshaft sprocket (INT), and then check
each oil groove for clogging.
• Clean oil groove if necessary.

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

2009 Pathfinder

EM-206

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[VK56DE]

OIL SEAL

OIL SEAL

Removal and Installation of Valve Oil Seal

INFOID:0000000003939565

REMOVAL

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

EM-195, "Removal and Instal-

lation"

Remove the valve lifters. Refer to

EM-212, "Exploded View"

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

them up.

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

Remove the valve collet using Tool.

CAUTION:

Do not damage the valve lifter holes.

Remove the valve spring retainer and valve spring.

CAUTION:

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

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:0000000003939566

REMOVAL

Remove the air dam using power tool.

Remove the engine undercover using power tool.

Remove the air duct and resonator assembly and the air cleaner case (upper). Refer to

EM-167,

"Removal and Installation"

Tool number

: KV10116200 (J-26336-B)

: 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

2009 Pathfinder

OIL SEAL

EM-207

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[VK56DE]

Remove the radiator assembly. Refer to

CO-45, "Removal and Installation"

Remove the cooling fan (crankshaft driven type). Refer to

CO-49, "Removal and Installation (Crankshaft

Driven Type)"

Remove the crankshaft pulley.

Remove the crankshaft pulley from the crankshaft using suitable
tool.
• Set the bolts in the two bolt holes [M6 x 1.0 mm (0.04 in)] on

the front surface.
NOTE:
The dimension between the centers of the two bolt holes is 61
mm (2.40 in).

Remove the front oil seal using suitable tool.

CAUTION:

Do not damage front cover and oil pump drive spacer.

INSTALLATION

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

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

shown.

• Press-fit until the front oil seal is level with the front cover

using suitable tool.

CAUTION:

• Do not damage front cover and crankshaft.
• Press-fit straight and avoid causing burrs or tilting oil

seal.

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

KBIA2477E

SBIA0359E

SEM715A

SBIA0359E

2009 Pathfinder

EM-208

< ON-VEHICLE REPAIR >

[VK56DE]

OIL SEAL

Removal and Installation of Rear Oil Seal

INFOID:0000000003939567

REMOVAL

Remove the transmission assembly. Refer to

TM-218, "4WD : Removal and Installation"

Before removing the drive plate, put a match mark (A) on the
crankshaft and drive plate for alignment during installation.

Lock the drive plate using Tool (A).

CAUTION:

• Do not damage the ring gear teeth, or the signal plate

teeth behind the ring gear, when setting Tool.

• Keep magnetic materials away from signal plate.
NOTE:
Remove the bolts diagonally.

Remove the drive plate.

CAUTION:

• Never place drive plate with signal plate facing down.
• When handling the signal plate, take care not to damage or scratch it.
• Handle the signal plate in a manner that prevents it from becoming magnetized.

Remove the engine rear plate.

Remove the rear oil seal using suitable tool.

CAUTION:

Do not damage crankshaft or oil seal retainer surface.

INSTALLATION

Apply new engine oil to both the oil seal lip and dust seal lip of the new rear oil seal.

Install the rear oil seal.

ALBIA0522ZZ

Tool number

—

(J-47245)

LBIA0455E

WBIA0437E

2009 Pathfinder

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