Nissan Pathfinder (2006 year). Manual - part 242

 

  Index      Manuals     Nissan Pathfinder (2006 year) - Service and Repair Manual

 

Search            copyright infringement  

 

 

 

 

 

 

 

 

Content      ..     240      241      242      243     ..

 

 

Nissan Pathfinder (2006 year). Manual - part 242

 

 

CAMSHAFT

EM-83

C

D

E

F

G

H

I

J

K

L

M

A

EM

2006 Pathfinder

INSPECTION AFTER INSTALLATION
Inspection of Camshaft Sprocket (INT) Oil Groove

CAUTION:

Perform this inspection only when DTC P0011 or P0021 are detected in self-diagnostic results of
CONSULT-II and it is directed according to inspection procedure of EC section. Refer to 

EC-116,

"SELF-DIAG RESULTS MODE"

 .

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

1.

Check the engine oil level. Refer to 

LU-7, "ENGINE OIL"

 .

2.

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

a.

Release fuel pressure. Refer to 

EC-79, "FUEL PRESSURE RELEASE"

 .

b.

Disconnect ignition coil and injector harness connectors.

3.

Remove intake valve timing control solenoid valve. Refer to 

EM-76, "REMOVAL"

 .

4.

Crank the engine, and then make sure that engine oil comes out
from camshaft bracket (No. 1) oil hole. End crank after checking.

WARNING:

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

CAUTION:

Engine oil may squirt from intake valve timing control sole-
noid valve installation hole during cranking. Use a shop
cloth to prevent the engine components and the vehicle. Do
not allow engine oil to get on rubber components such as
drive belt or engine mount insulators. Immediately wipe off
any splashed engine oil.

Clean oil groove between oil strainer and intake valve timing control solenoid valve if engine oil does not
come out from camshaft bracket (No. 1) oil hole. Refer to 

LU-5, "LUBRICATION SYSTEM"

 .

5.

Remove components between intake valve timing control solenoid valve and camshaft sprocket (INT),
and then check each oil groove for clogging.

Clean oil groove if necessary. Refer to 

LU-5, "LUBRICATION SYSTEM"

 .

6.

After inspection, install removed parts.

Inspection for Leaks

The following are procedures for checking fluid leaks, lubricant leaks and exhaust gases leaks.

Before starting engine, check oil/fluid levels including engine coolant and engine oil. If less than required
quantity, fill to the specified level. Refer to 

MA-11, "RECOMMENDED FLUIDS AND LUBRICANTS"

 .

Use procedure below to check for fuel leakage.

Turn ignition switch “ON” (with engine 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 timing chain tensioner drops after removal/installation, slack in the guide may
generate a pounding noise during and just after engine start. However, this is normal. Noise will stop after
hydraulic pressure rises.

Warm up engine thoroughly to make sure there is no leakage of fuel, exhaust gases, 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 to the
specified level, if necessary.

PBIC2869E

EM-84

CAMSHAFT

2006 Pathfinder

Summary of the inspection items:

* Transmission/transaxle/CVT fluid, power steering fluid, brake fluid, etc.

Valve Clearance

EBS00QC1

INSPECTION

In cases of removing/installing or replacing camshaft and valve-
related parts, or of unusual engine conditions due to changes in
valve clearance (found malfunctions during stating, idling or causing
noise), perform inspection as follows:

1.

Remove rocker covers (right and left banks). Refer to 

EM-41, "Removal and Installation"

 .

2.

Measure the valve clearance as follows:

a.

Set No. 1 cylinder at TDC of its compression stroke.

Rotate crankshaft pulley clockwise to align timing mark
(grooved line without color) with timing indicator.

Make sure that intake and exhaust cam noses on No. 1 cylin-
der (engine front side of right bank) are located as shown.

If not, rotate crankshaft one revolution (360

°

) and align as

shown.

Item

Before starting engine

Engine running

After engine stopped

Engine coolant

Level

Leakage

Level

Engine oil

Level

Leakage

Level

Other oils and fluid*

Level

Leakage

Level

Fuel

Leakage

Leakage

Leakage

SEM713A

KBIA1717J

SEM418G

CAMSHAFT

EM-85

C

D

E

F

G

H

I

J

K

L

M

A

EM

2006 Pathfinder

b.

Use feeler gauge, measure the clearance between valve lifter
and camshaft.

Valve clearance:

Unit: mm (in)

*: Approximately 80

°

C (176

°

F)

By referring to the figure, measure the valve clearances at
locations marked “

×

” as shown (locations indicated in the fig-

ure) with feeler gauge.

No. 1 cylinder at compression TDC

c.

Rotate crankshaft by 240

°

 clockwise (when viewed from engine

front) to align No. 3 cylinder at TDC of its compression stroke.

NOTE:
Crankshaft pulley bolt flange has a stamped line every 60

°

. They

can be used as a guide to rotation angle.

SEM139D

Cold

Hot * (reference data)

Intake

0.26 - 0.34 (0.010 - 0.013)

0.304 - 0.416 (0.012 - 0.016)

Exhaust

0.29 - 0.37 (0.011 - 0.015)

0.308 - 0.432 (0.012 - 0.017)

Measuring position (right bank)

No. 1 CYL.

No. 3 CYL.

No. 5 CYL.

No. 1 cylinder at 

compression TDC

EXH

×

INT

×

Measuring position (left bank)

No. 2 CYL.

No. 4 CYL.

No. 6 CYL.

No. 1 cylinder at 

compression TDC

INT

×

 

EXH

×

 

PBIC2054E

PBIC2916E

EM-86

CAMSHAFT

2006 Pathfinder

By referring to the figure, measure the valve clearances at
locations marked “

×

” as shown in the table below (locations

indicated in the figure) with feeler gauge.

No. 3 cylinder at compression TDC

d.

Rotate crankshaft by 240

°

 clockwise (when viewed from engine

front) to align No. 5 cylinder at TDC of compression stroke. 

By referring to the figure, measure the valve clearances at
locations marked “

×

” as shown in the table below (locations

indicated in the figure) with feeler gauge.

No. 5 cylinder at compression TDC

Measuring position (right bank)

No. 1 CYL.

No. 3 CYL.

No. 5 CYL.

No. 3 cylinder at 

compression TDC

EXH

×

INT

×

Measuring position (left bank)

No. 2 CYL.

No. 4 CYL.

No. 6 CYL.

No. 3 cylinder at 

compression TDC

INT

×

 

EXH

 

×

PBIC2055E

PBIC2916E

Measuring position (right bank)

No. 1 CYL.

No. 3 CYL.

No. 5 CYL.

No. 5 cylinder at 

compression TDC

EXH

×

INT

×

Measuring position (left bank)

No. 2 CYL.

No. 4 CYL.

No. 6 CYL.

No. 5 cylinder at 

compression TDC

INT

×

 

EXH

 

×

PBIC2056E

CAMSHAFT

EM-87

C

D

E

F

G

H

I

J

K

L

M

A

EM

2006 Pathfinder

3.

For the measured value out of the standard, perform adjustment. Refer to 

EM-87, "ADJUSTMENT"

 .

ADJUSTMENT

Perform adjustment depending on selected head thickness of valve lifter.

1.

Measure the valve clearance. Refer to 

EM-84, "INSPECTION"

 .

2.

Remove camshaft. Refer to 

EM-76, "REMOVAL"

 .

3.

Remove valve lifters at the locations that are out of the standard.

4.

Measure the center thickness of removed valve lifters with
micrometer.

5.

Use the equation below to calculate valve lifter thickness for replacement.

Thickness of new valve lifter can be identified by stamp marks
on the reverse side (inside the cylinder).

Intake

Available thickness of valve lifter: 27 sizes with range 7.88 to 8.40 mm (0.3102 to 0.3307 in) in steps of
0.02 mm (0.0008 in) (when manufactured at factory). Refer to 

EM-136, "Available Valve Lifter"

 .

KBIA0057E

Valve lifter thickness calculation:

t = t

1

 + (C

1

 – C

2

 )

t

= Valve lifter thickness to be replaced

t

1

= Removed valve lifter thickness

C

1

= Measured valve clearance

C

2

= Standard valve clearance:

Intake

: 0.30 mm (0.012 in)*

Exhaust

: 0.33 mm (0.013 in)*

*: Approximately 20

°

C (68

°

F)

KBIA0119E

Stamp mark

Thickness

788U

7.88 mm (0.3102 in)

790U

7.90 mm (0.3110 in)

·

·

·

·

840U

8.40 mm (0.3307 in)

EM-88

CAMSHAFT

2006 Pathfinder

Exhaust

Available thickness of valve lifter: 25 sizes with range 7.88 to 8.36 mm (0.3102 to 0.3291 in) in steps of
0.02 mm (0.0008 in) (when manufactured at factory). Refer to 

EM-136, "Available Valve Lifter"

 .

CAUTION:

Install identification letter at the end and top, “U” and “N”, at each of proper positions. (Be care-
ful of mis-installation between intake and exhaust.)

6.

Install selected valve lifter.

7.

Install camshaft. Refer to 

EM-80, "INSTALLATION"

 .

8.

Manually turn crankshaft pulley a few turns. 

9.

Make sure that the valve clearances for cold engine are within the specifications by referring to the speci-
fied values.

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

11. Start the engine, and check for unusual noise and vibration.

Stamp mark

Thickness

N788

7.88 mm (0.3102 in)

N790

7.90 mm (0.3110 in)

·

·

·

·

N836

8.36 mm (0.3291 in)

OIL SEAL

EM-89

C

D

E

F

G

H

I

J

K

L

M

A

EM

2006 Pathfinder

OIL SEAL

PFP:00100

Removal and Installation of Valve Oil Seal

EBS00QC2

REMOVAL

1.

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

2.

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

EM-76, "REMOVAL"

 .

3.

Remove valve lifters. Refer to 

EM-76, "REMOVAL"

 .

4.

Remove valve collet, valve spring retainer and valve spring
using Tool.

CAUTION:

When working, take care not to damage valve lifter holes.

Compress valve spring using Tool attachment, adapter.
Remove valve collet with magnet hand.

5.

Remove valve oil seal using Tool.

INSTALLATION

1.

Apply new engine oil to new valve oil seal joint surface and seal lip.

2.

Press in valve oil seal to height "H" using Tool to specified
height.

NOTE:
Dimension "H": height measured before valve spring seat instal-
lation.

3.

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

Tool numbers

: KV10116200 (J-26336-B)

: KV10115900 (J-26336-20)

: KV10109220 (

)

WBIA0578E

Tool number

: KV10107902 (J-38959)

WBIA0489E

Tool number

(J-39386)

Intake and exhaust

: 14.3 - 14.9 mm (0.563 - 0.587 in)

WBIA0490E

EM-90

OIL SEAL

2006 Pathfinder

Removal and Installation of Front Oil Seal

EBS00QC3

REMOVAL

1.

Remove engine undercover using power tools.

2.

Remove drive belts. Refer to 

EM-14, "Removal"

 .

3.

Remove engine cooling fan assembly. Refer to 

CO-17, "ENGINE COOLING FAN"

 .

4.

Remove crankshaft pulley. Refer to 

EM-56, "REMOVAL"

 .

5.

Remove front oil seal using suitable tool.

CAUTION:

Be careful not to damage front timing chain case and crank-
shaft.

INSTALLATION

1.

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

2.

Install front oil seal.

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

Press-fit until the height of front oil seal is level with the
mounting surface using suitable tool.

Suitable drift: outer diameter 60 mm (2.36 in), inner diameter
50 mm (1.97 in).

CAUTION:

Be careful not to damage front timing chain case and
crankshaft.

Press-fit straight and avoid causing burrs or tilting oil
seal.

3.

Installation is in the reverse order of removal after this step.

PBIC2931E

SEM715A

PBIC2931E

 

 

 

 

 

 

 

Content      ..     240      241      242      243     ..