Nissan Pathfinder (2010 year). Instruction — part 361
EM-16
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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
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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
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
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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
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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
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
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. Instructionly 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
.
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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