Nissan Pathfinder (2010 year). Manual - part 361

 

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Nissan Pathfinder (2010 year). Manual - part 361

 

 

EM-16

< ON-VEHICLE MAINTENANCE >

[VQ40DE]

AIR CLEANER FILTER

AIR CLEANER FILTER

Exploded View

INFOID:0000000005260436

Removal and Installation

INFOID:0000000005260437

REMOVAL

1. Unhook clips, and lift air cleaner case (upper).
2. Remove air cleaner filter.

INSTALLATION

Installation is in the reverse order of removal.

1.

Air cleaner case (lower)

2.

Air cleaner filter

3.

Air cleaner case (upper)

4.

Air duct and resonator

Front

AWBIA0133GB

2010 Pathfinder

SPARK PLUG

EM-17

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SPARK PLUG

Exploded View

INFOID:0000000005260438

Removal and Installation

INFOID:0000000005260439

REMOVAL

1. Remove engine room cover. Refer to 

EM-25, "Removal and Installation"

.

2. Remove ignition coil. Refer to 

EM-41, "Removal and Installation"

.

3. Remove spark plug using suitable tool.

CAUTION:

Do not drop or shock it.

INSPECTION AFTER REMOVAL

• Do not use a wire brush for cleaning.

• If the spark plug tip is covered with carbon, a spark plug cleaner may be used.

1.

Ignition coil

2.

Spark plug

PBIC2901E

SEM294A

SMA773C

2010 Pathfinder

EM-18

< ON-VEHICLE MAINTENANCE >

[VQ40DE]

SPARK PLUG

• Checking and adjusting spark plug gap is not required between

change intervals.

INSTALLATION

Installation is in the reverse order of removal.

CAUTION:

Do not drop or shock spark plug.

Cleaner air pressure

: Less than 588 kPa (5.9 bar, 6 kg/cm

2

, 85 psi)

Cleaning time

: Less than 20 seconds

SMA806CA

Application

United States and Canada

Mexico

Make

NGK

Standard type

DILFR5A-11

PLFR5A-11

Gap (nominal)

1.1 mm (0.043 in)

2010 Pathfinder

CAMSHAFT VALVE CLEARANCE

EM-19

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CAMSHAFT VALVE CLEARANCE

Valve Clearance

INFOID:0000000005260440

INSPECTION

NOTE:

Perform the following inspection after removal, installation or replacement of camshaft or valve-related parts,

or if there are unusual engine conditions due to changes in valve clearance over time (starting, idling, and/or

noise).
1. Remove the engine room cover. Refer to 

EM-25, "Removal and Installation"

.

2. Remove the air cleaner and air duct assembly. Refer to 

EM-26, "Exploded View"

.

3. Remove rocker covers (RH and LH banks). Refer to 

EM-42, "Removal and Installation"

.

4. 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 (A)

(grooved line without color) with timing indicator (B).

• Make sure that intake and exhaust cam noses on No. 1 cylin-

der (engine front side of RH bank) are located as shown.

• If not, rotate crankshaft one revolution (360

°

) and align as

shown.

b. Use feeler gauge, measure the clearance between valve lifter

and camshaft.

Valve clearance:

Unit: mm (in)

*: Approximately 80

°

C (176

°

F)

AWBIA0719ZZ

SEM418G

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)

2010 Pathfinder

EM-20

< ON-VEHICLE MAINTENANCE >

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CAMSHAFT VALVE CLEARANCE

• Measure the valve clearances at locations marked “

×

” as

shown in the table below (locations indicated in the illustration)

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.

• Measure the valve clearances at locations marked “

×

” as

shown in the table below (locations indicated in the illustration)

with feeler gauge.

• No. 3 cylinder at compression TDC

Measuring position (RH bank)

No. 1 CYL.

No. 3 CYL.

No. 5 CYL.

No. 1 cylinder at 

compression TDC

EXH

×

INT

×

Measuring position (LH bank)

No. 2 CYL.

No. 4 CYL.

No. 6 CYL.

No. 1 cylinder at 

compression TDC

INT

×

 

EXH

×

 

PBIC2054E

PBIC2916E

Measuring position (RH bank)

No. 1 CYL.

No. 3 CYL.

No. 5 CYL.

No. 3 cylinder at 

compression TDC

EXH

×

INT

×

Measuring position (LH bank)

No. 2 CYL.

No. 4 CYL.

No. 6 CYL.

No. 3 cylinder at 

compression TDC

INT

×

 

EXH

 

×

PBIC2055E

2010 Pathfinder

CAMSHAFT VALVE CLEARANCE

EM-21

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d. Rotate crankshaft by 240

°

 clockwise (when viewed from engine

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

• Measure the valve clearances at locations marked “

×

” as

shown in the table below (locations indicated in the illustration)

with feeler gauge.

• No. 5 cylinder at compression TDC

5. For the measured value out of the standard, perform adjustment. 

ADJUSTMENT

• Perform adjustment depending on selected head thickness of valve lifter.
1. Measure the valve clearance. 
2. Remove camshaft. Refer to 

EM-74, "Removal and Installation"

.

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.

PBIC2916E

Measuring position (RH bank)

No. 1 CYL.

No. 3 CYL.

No. 5 CYL.

No. 5 cylinder at 

compression TDC

EXH

×

INT

×

Measuring position (LH bank)

No. 2 CYL.

No. 4 CYL.

No. 6 CYL.

No. 5 cylinder at 

compression TDC

INT

×

 

EXH

 

×

PBIC2056E

KBIA0057E

2010 Pathfinder

EM-22

< ON-VEHICLE MAINTENANCE >

[VQ40DE]

CAMSHAFT VALVE CLEARANCE

• 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-128, "Standard and Limit"

.

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-128, "Standard and Limit"

.

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-74, "Removal and 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.

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

: 0.26 - 0.34 mm (0.010 - 0.013 in)*

Exhaust

: 0.29 - 0.37 mm (0.011 - 0.015 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)

Stamp mark

Thickness

N788

7.88 mm (0.3102 in)

N790

7.90 mm (0.3110 in)

·

·

·

·

N836

8.36 mm (0.3291 in)

2010 Pathfinder

COMPRESSION PRESSURE

EM-23

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COMPRESSION PRESSURE

Compression Pressure

INFOID:0000000005260441

CHECKING COMPRESSION PRESSURE

1. Warm up engine thoroughly. 
2. Release fuel pressure. Refer to 

EC-495, "Fuel Pressure Check"

.

3. Disconnect fuel pump fuse to avoid fuel injection during mea-

surement.

4. Remove intake manifold collector. Refer to 

EM-27, "Removal and Installation"

.

5. Remove spark plug from each cylinder. Refer to 

EM-17, "Removal and Installation"

.

6. Connect engine tachometer (not required in use of CONSULT-III).
7. Install compression tester with adapter onto spark plug hole.

• Use compression gauge whose pick up end inserted to spark

plug hole is smaller than 20 mm (0.79 in) in diameter. Other-

wise, it may be caught by cylinder head during removal.

8. Turn ignition switch to “START” for cranking. When the gauge pointer stabilizes, read the compression

pressure and engine rpm. Perform these steps to check each cylinder.

Compression pressure:

Unit: kPa (kg/cm

2

, psi) /rpm

CAUTION:

Always use a fully charged battery to obtain specified engine speed.

• If the engine speed is out of the specified range, check the battery liquid for proper gravity. Check the

engine speed again with normal battery gravity. 

BBIA0534E

PBIC0900E

SBIA0533E

Standard

Minimum

Differential limit between cylinders

 1,275 (13.0, 185) / 300

981 (10.0, 142) / 300

98 (1.0, 14) / 300

2010 Pathfinder

 

 

 

 

 

 

 

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