Page 2137 of 4801
CAMSHAFT VALVE CLEARANCEEM-139
< PERIODIC MAINTENANCE > [VQ35DE]
C
D E
F
G H
I
J
K L
M A
EM
NP
O
5. Check only the valves as shown.
• Using a feeler gauge, measure the clear ance between the valve lifter and camshaft.
• Record any valve clearance measurements which are out of specification. They will be used later to
determine the required replacement lifter size.
Valve Clearance for Checking (cold)
6. Turn crankshaft 240 °.
7. Set No.3 cylinder at TDC on its compression stroke.
Crank Position Valve No. 1 Valve No. 2 Valve No. 3 Valve No. 6
No. 1 TDC Intake Exhaust Exhaust Intake
SEM893E
Intake : 0.26 - 0.34 mm (0.010 - 0.013 in)
Exhaust : 0.29 - 0.37 mm (0.011 - 0.015 in)
SEM139D
KBIA0185E
Revision: November 20132014 Altima NAM
Page 2138 of 4801
![NISSAN TEANA 2014 Service Manual
EM-140
< PERIODIC MAINTENANCE >[VQ35DE]
CAMSHAFT VALVE CLEARANCE
8. Check only those valves as shown.
9. Turn the crankshaft 240 ° and align as above.
10. Set No.5 cylinder at TDC on its compressio NISSAN TEANA 2014 Service Manual
EM-140
< PERIODIC MAINTENANCE >[VQ35DE]
CAMSHAFT VALVE CLEARANCE
8. Check only those valves as shown.
9. Turn the crankshaft 240 ° and align as above.
10. Set No.5 cylinder at TDC on its compressio](/manual-img/5/57390/w960_57390-2137.png)
EM-140
< PERIODIC MAINTENANCE >[VQ35DE]
CAMSHAFT VALVE CLEARANCE
8. Check only those valves as shown.
9. Turn the crankshaft 240 ° and align as above.
10. Set No.5 cylinder at TDC on its compression stroke.
11. Check only those valves as shown.
12. If all valve clearances are within specification, inst all the following components. If the valve clearances are
out of specification, adj ust the valve clearances.
• Rocker covers. Refer to EM-168, "Removal and Installation LH"
(LH), EM-169, "Removal and Installa-
tion RH" (RH).
• All spark plugs. Refer to EM-132, "Removal and Installation"
.
• All ignition coils. Refer to EM-162, "Removal and Installation LH"
(LH), EM-162, "Removal and Installa-
tion RH" (RH).
• Intake manifold collector. Refer to EM-146, "Removal and Installation"
.
Crank Position Valve No. 2 Valve No. 3 Valve No. 4 Valve No. 5
No. 3 TDC Intake Intake Exhaust Exhaust
SEM894E
Crank Position Valve No. 1 Valve No. 4 Valve No. 5 Valve No. 6 No. 5 TDC Exhaust Intake Intake Exhaust
SEM958E
Revision: November 20132014 Altima NAM
Page 2139 of 4801
![NISSAN TEANA 2014 Service Manual
CAMSHAFT VALVE CLEARANCEEM-141
< PERIODIC MAINTENANCE > [VQ35DE]
C
D E
F
G H
I
J
K L
M A
EM
NP
O
VALVE ADJUSTING
CAUTION:
Adjust valve clearance while engine is cold.
NOTE:
• Perform adjustment NISSAN TEANA 2014 Service Manual
CAMSHAFT VALVE CLEARANCEEM-141
< PERIODIC MAINTENANCE > [VQ35DE]
C
D E
F
G H
I
J
K L
M A
EM
NP
O
VALVE ADJUSTING
CAUTION:
Adjust valve clearance while engine is cold.
NOTE:
• Perform adjustment](/manual-img/5/57390/w960_57390-2138.png)
CAMSHAFT VALVE CLEARANCEEM-141
< PERIODIC MAINTENANCE > [VQ35DE]
C
D E
F
G H
I
J
K L
M A
EM
NP
O
VALVE ADJUSTING
CAUTION:
Adjust valve clearance while engine is cold.
NOTE:
• Perform adjustment by selecting the correct head thicknes s of the valve lifter (adjusting shims are not used).
• The specified valve lifter thickness is the dimension at normal temperatures. Ignore dimensional differences
caused by temperature. Use spec ifications for hot engine condition to confirm valve clearances.
1. Remove the camshaft. Refer to EM-194, "Removal and Installation"
.
2. Remove the valve lifter that was measur ed as being outside the standard specifications.
3. Measure the center thickness of the removed lifter with a micrometer, as shown.
4. Use the equation below to calculate the replacement valve lifter thickness.
Valve lifter thickness calculation equation: t = t1 + (C1 - C2)
t = thickness of the replacement lifter
t1 = thickness of the removed lifter
C1 = measured valve clearance
C2 = standard valve clearance
• The thickness of the new valve lifter can be identified by the
stamp mark on the reverse side (inside the lifter).
• Available thickness of the valve lifter (factory setting):
7.88 - 8.40 mm (0.3102 - 0.3307 in), in 0.02 mm (0.0008 in)
increments, in 27 sizes (intake / exhaust). Refer to EM-249,
"Cylinder Head".
5. Install the selected replacement valve lifter.
6. Install the camshaft. Refer to EM-194, "Removal and Installation"
.
7. Rotate the crankshaft a few turns by hand.
8. Confirm that the valve clear ances are within specification.
9. After the engine has been run to full operating temperat ure, confirm that the valve clearances are within
specification.
* Approximately 80 °C (176 °F)
SEM754G
SEM755G
Standard Valve Clearance Cold Hot* (reference data)
Intake 0.26 - 0.34 mm (0.010 - 0.013 in) 0.304 - 0.416 mm (0.012 - 0.016 in)
Exhaust 0.29 - 0.37 mm (0.011 - 0.015 in) 0.308 - 0.432 mm (0.012 - 0.017 in)
Revision: November 20132014 Altima NAM
Page 2140 of 4801
![NISSAN TEANA 2014 Service Manual
EM-142
< PERIODIC MAINTENANCE >[VQ35DE]
COMPRESSION PRESSURE
COMPRESSION PRESSURE
On-Vehicle ServiceINFOID:0000000009460536
CHECKING COMPRESSION PRESSURE
1. Run the engine until it reaches normal ope NISSAN TEANA 2014 Service Manual
EM-142
< PERIODIC MAINTENANCE >[VQ35DE]
COMPRESSION PRESSURE
COMPRESSION PRESSURE
On-Vehicle ServiceINFOID:0000000009460536
CHECKING COMPRESSION PRESSURE
1. Run the engine until it reaches normal ope](/manual-img/5/57390/w960_57390-2139.png)
EM-142
< PERIODIC MAINTENANCE >[VQ35DE]
COMPRESSION PRESSURE
COMPRESSION PRESSURE
On-Vehicle ServiceINFOID:0000000009460536
CHECKING COMPRESSION PRESSURE
1. Run the engine until it reaches normal operating temperature.
2. Turn the ignition switch to OFF.
3. Release fuel pressure and leave t he fuel pump electrically disconnected.
Refer to EC-687, "Work Procedure"
.
4. Remove all six spark plugs. Refer to EM-132, "Removal and Installation"
.
5. Install the compression tester with the adapter into the spark plug hole. • Use compression tester whose end (a) (rubber portion) is
smaller than 20 mm (0.79 in) in diameter. Otherwise, it may be
caught by cylinder head during removal.
6. Depress accelerator pedal fully to keep the electric throttle control actuator butterfly-valve wide open to
maximize air intake flow.
7. Crank the engine and record the highest gauge indication.
8. Repeat the measurement on each cylinder (steps 5 - 7). NOTE:
Always use a fully charged battery to obtain specified engine speed.
Unit: kPa (kg/cm2, psi)/rpm
9. If compression in one or more cylinders is low:
a. Pour a small amount of engine oil into cylinders through the spark plug holes.
b. Retest compression (steps 5 - 8).
• If adding oil helps raise compression pressure, then the piston rings may be worn or damaged. If so, replace piston rings after checking piston.
• If the pressure stays low, a valve may be sticking or is seating improperly. Inspect and repair the valve and/
or valve seat. Refer to EM-212, "Inspection After Disassembly"
. If the valve and/or valve seat is damaged
replace as necessary.
• If compression stays low in two or more cylinders that are next to each other:
- The cylinder head gasket may be leaking.
- Both cylinders may have valve component damage. Inspect and repair as necessary.
JPBIA0171ZZ
Standard Minimum Difference limit between cylinders
1,275 (13.0, 185)/300 981 (10.0, 142)/300 98 (1.0, 14)/300
Revision: November 20132014 Altima NAM
Page 2141 of 4801
ENGINE ROOM COVEREM-143
< REMOVAL AND INSTALLATION > [VQ35DE]
C
D E
F
G H
I
J
K L
M A
EM
NP
O
REMOVAL AND INSTALLATION
ENGINE ROOM COVER
Exploded ViewINFOID:0000000009460537
Removal and InstallationINFOID:0000000009460538
CAUTION:
Do not damage or scratch engine room cover when installing or removing.
REMOVAL
1. Remove front air duct. Refer to EM-144, "Removal and Installation".
2. Remove engine room cover bolts.
3. Remove engine room cover by lifting straight up releasing engine room cover locking tabs.
INSTALLATION
Installation is in the reverse order of removal.
1. Engine room cover A. Engine room cover locking tabs
ALBIA0931ZZ
Revision: November 20132014 Altima NAM
Page 2142 of 4801
![NISSAN TEANA 2014 Service Manual
EM-144
< REMOVAL AND INSTALLATION >[VQ35DE]
AIR CLEANER AND AIR DUCT
AIR CLEANER AND AIR DUCT
Exploded ViewINFOID:0000000009460539
Removal and InstallationINFOID:0000000009460540
REMOVAL
1. Remove en NISSAN TEANA 2014 Service Manual
EM-144
< REMOVAL AND INSTALLATION >[VQ35DE]
AIR CLEANER AND AIR DUCT
AIR CLEANER AND AIR DUCT
Exploded ViewINFOID:0000000009460539
Removal and InstallationINFOID:0000000009460540
REMOVAL
1. Remove en](/manual-img/5/57390/w960_57390-2141.png)
EM-144
< REMOVAL AND INSTALLATION >[VQ35DE]
AIR CLEANER AND AIR DUCT
AIR CLEANER AND AIR DUCT
Exploded ViewINFOID:0000000009460539
Removal and InstallationINFOID:0000000009460540
REMOVAL
1. Remove engine room cover. Refer to
EM-143, "Removal and Installation".
2. Remove duct sub-cover and front air duct.
3. Disconnect the blow-by hose.
4. Disconnect the tube clamp at the electric throttle control actuator and at the air duct hose and resonator
assembly.
5. Remove air duct hose and resonator assembly.
6. Disconnect mass air flow sensor.
7. Remove mass air flow sensor from air cleaner assembly, as necessary. CAUTION:
Handle mass air flow sensor with care.
• Do not shock it.
• Do not disassemble it.
• Do not touch its sensor.
8. Disconnect transaxle breather hose.
9. Remove air cleaner assembly.
INSPECTION AFTER REMOVAL
Inspect air cleaner case assembly, front air duct, air duct hose and resonator assembly for cracks or tears.
Replace as necessary.
1. Air duct hose and resonator assembly 2. Duct sub-cover 3. Front air duct
4. Air cleaner assembly 5. Grommets 6. Air cleaner mounting bracket
7. Bracket 8. Mass air flow sensor A. To electric throttle control actuator
ALBIA0497ZZ
Revision: November 20132014 Altima NAM
Page 2143 of 4801
AIR CLEANER AND AIR DUCTEM-145
< REMOVAL AND INSTALLATION > [VQ35DE]
C
D E
F
G H
I
J
K L
M A
EM
NP
O
INSTALLATION
Installation is in the reverse order of removal.
Revision: November 20132014 Altima NAM
Page 2144 of 4801
![NISSAN TEANA 2014 Service Manual
EM-146
< REMOVAL AND INSTALLATION >[VQ35DE]
INTAKE MANIFOLD COLLECTOR
INTAKE MANIFOLD COLLECTOR
Exploded ViewINFOID:0000000009460541
CAUTION:
Do not remove power valves.
Removal and InstallationINFO NISSAN TEANA 2014 Service Manual
EM-146
< REMOVAL AND INSTALLATION >[VQ35DE]
INTAKE MANIFOLD COLLECTOR
INTAKE MANIFOLD COLLECTOR
Exploded ViewINFOID:0000000009460541
CAUTION:
Do not remove power valves.
Removal and InstallationINFO](/manual-img/5/57390/w960_57390-2143.png)
EM-146
< REMOVAL AND INSTALLATION >[VQ35DE]
INTAKE MANIFOLD COLLECTOR
INTAKE MANIFOLD COLLECTOR
Exploded ViewINFOID:0000000009460541
CAUTION:
Do not remove power valves.
Removal and InstallationINFOID:0000000009460542
REMOVAL
WARNING:
To avoid the danger of being scalded, do no t drain the coolant when the engine is hot.
1. Remove the cowl top. Refer to EXT-24, "Removal and Installation"
.
2. Remove the strut tower bar. Refer to FSU-19, "Exploded View"
.
3. Remove the engine room cover. Refer to EM-143, "Removal and Installation"
.
4. Remove front air duct and air duct hose and resonator assembly. Refer to EM-144, "Removal and Installa-
tion".
5. Partially drain the engine coolant. Refer to CO-36, "Changing Engine Coolant"
.
NOTE:
1. Intake manifold collector 2. Intake manifold collector gasket 3. Electric throttle control actuator gasket
4. Electric throttle control actuator A. Refer to INSTALLATION B. Refer to INSTALLATION
AWBIA1336ZZ
Revision: November 20132014 Altima NAM