2014 NISSAN TEANA engine

MA-18
< PERIODIC MAINTENANCE >
ENGINE MAINTENANCE (QR25DE)
• Prolonged and repeated contact with used engine oil may cause skin cancer: try to avoid direct skin
contact with used oil. If skin contact is made, wash thoroughly with soap or hand cleaner as soon as
possible.
1. Position the vehicle so it is level on the hoist.
2. Warm up the engine and check for oil leaks from the engine.
3. Stop engine and wait for 10 minutes.
4. Remove the oil pan drain plug (1) and oil filler cap.
5. Drain the engine oil.
6. Install the oil pan drain plug with a new washer and refill the engine with new engine oil.
CAUTION:
• Be sure to clean the oil pan drain plug and install using a new washer.
• The refill capacity depends on the oil temper ature and drain time. Use these specifications for
reference only. Always use the oil level gauge to determine when the proper amount of oil is in
the engine.
7. Warm up the engine and check around the drain plug and oil filter for oil leaks.
8. Stop the engine and wait for 10 minutes.
9. Check the oil level using the oil level gauge. CAUTION:
Do not overfill the engine with engine oil.
OIL FILTER
OIL FILTER : Removal and InstallationINFOID:0000000009464550
REMOVAL
1. Remove fender protector side cover (RH). Refer to EXT-26, "FENDER PROTECTOR : Removal and
Installation".
2. Drain engine oil. Refer to LU-10, "Changing Engine Oil"
3. Remove the oil filter using suitable tool.
WARNING:
• Be careful not to get burned, the engine and engine oil may be hot.
CAUTION:
• When removing, prepare a shop cloth to absorb any oil leakage or spillage.
• Do not allow engine oil to adhere to the drive belts.
• Completely wipe off any oil that adheres to the engine and
the vehicle.
: Front
Oil specification and
viscosity : Refer to
MA-11, "FOR USA
AND CANADA : Engine Oil
Recommendation".
Oil pan drain plug : 34.3 N·m (3.5 kg-m, 25 ft-lb)JPBIA1676ZZ
Tool number : KV10115801 (J-38956)
WBIA0589E
Revision: November 20132014 Altima NAM

ENGINE MAINTENANCE (QR25DE)MA-19
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• The oil filter has a built in pressure relief valve. Use a Gen-
uine NISSAN oil filter or equivalent.
INSTALLATION
1. Remove foreign materials adhering to the oil filter installation surface.
2. Apply clean engine oil to the oil seal contact surface of the new oil filter.
3. Screw the oil filter manually unt il it touches the installation sur-
face, then tighten it by 2/3 turn. Or tighten to specification below.
4. Refill engine with new engine oil. Refer to LU-10, "Changing Engine Oil"
.
5. After warming up the engine, check for engine oil leaks. Repair as necessary.
6. Install fender protector side cover (RH). Refer to EXT-26, "FENDER PROTECTOR : Removal and Installa-
tion".
SPARK PLUG
ALC094
SMA010
Oil filter : 18.0 N·m (1.8 kg-m, 13 ft-lb)
SMA229B
Revision: November 20132014 Altima NAM

MA-20
< PERIODIC MAINTENANCE >
ENGINE MAINTENANCE (QR25DE)
SPARK PLUG : Removal and Installation
INFOID:0000000009464551
REMOVAL
1. Remove engine room cover. Refer to EM-28, "Removal and Installation".
2. Remove the ignition coil. Refer to EM-40, "Removal and Installation"
.
3. Remove the spark plug with a suitable tool.
INSPECTION AFTER REMOVAL
Visually check the electrode for dirt and wear and the insulator for burning.
1. Ignition coil 2. Spark plug 3. Rocker cover
AWBIA1302GB
(a): 14 mm (0.55 in)
JPBIA0030ZZ
(A) : Iridium alloy
(B) : Platinum alloy
PBIC3152J
Revision: November 20132014 Altima NAM

ENGINE MAINTENANCE (QR25DE)MA-21
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• Do not use a wire brush for cleaning the spark plugs. Replace as
necessary.
• If plug is covered with carbon, a spark plug cleaner may be used.
• Checking and adjusting plug gap is not required between change intervals. If the gap is out of s pecification, replace the spark plug.
CAUTION:
Do not drop or shock plug.
INSTALLATION
Installation is in the reverse order of removal.
*: Always check with the Parts Department for the latest parts information.
EVAP VAPOR LINES
EVAP VAPOR LINES : InspectionINFOID:0000000009464552
1. Visually inspect EVAP vapor lines for improper attachment and for cracks, damage, loose connections,
chafing and deterioration.
2. Inspect fuel tank filler cap vacuum relief valve for clogging, sticking, etc.
SMA773C
Cleaner air pressure : less than 588 kPa (6 kg/cm2, 85 psi)
Cleaning time : less than 20 seconds
SMA806CA
Standard type* DENSO
FXE20HE11C
Gap (nominal) 1.1 mm (0.043 in)
Revision: November 20132014 Altima NAM

MA-22
< PERIODIC MAINTENANCE >
ENGINE MAINTENANCE (VQ35DE)
ENGINE MAINTENANCE (VQ35DE)
DRIVE BELTS
DRIVE BELTS : Checking Drive BeltsINFOID:0000000009464553
WARNING:
Inspect and check the drive belts with the engine off.
1. Inspect belt for cracks, fraying, wear or o il adhesion. If necessary, replace with a new one.
2. Rotate the crankshaft pulley two times then ensure t he drive belt auto-tensioner is within the possible use
range.
NOTE:
Inspect drive belt tension when engine is cold.
DRIVE BELTS : Tension AdjustmentINFOID:0000000009464554
Belt tension is not manually adjustable, it is aut omatically adjusted by the drive belt auto-tensioner.
ENGINE COOLANT
ENGINE COOLANT : System InspectionINFOID:0000000009464555
CHECKING COOLING SYSTEM HOSES
Check hoses for the following:
• Improper attachment
• Leaks
• Cracks
• Damage
• Loose connections
• Chafing
• Deterioration
CHECKING RESERVOIR LEVEL
1. Drive belt auto-tensioner 2. Generator 3. A/C compressor
4. Drive belt 5. Crankshaft pulley A. Indicator
B. Range when new drive belt is installed C. Possible use range D. View D Engine front
AWBIA1225GB
Revision: November 20132014 Altima NAM

ENGINE MAINTENANCE (VQ35DE)MA-23
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• Check if the reservoir tank coolant level is within MIN to MAX
range when the engine is cool.
• Adjust coolant level if it is too much or too little.
ENGINE COOLANT : Chang ing Engine CoolantINFOID:0000000009464556
WARNING:
Do not remove the radiator cap when the engine is hot. Serious burns could occur from high-pressure
engine coolant escaping from the radiator. Wrap a thick cloth around the cap. Slowly push down and
turn it a quarter turn to allow built-up pressure to escape. Carefully remove the cap by pushing it down
and turning it all the way.
DRAINING ENGINE COOLANT
1. Remove the engine under cover. Refer to EXT-17, "Removal and Installation".
2. Open the radiator drain plug at the bottom of the radiat or and remove the radiator filler cap. This is the
only step required when partially draining the cooling system (radiator only).
CAUTION:
• Do not allow the coolant to contact the drive belts.
• Perform this step when engine is cold.
3. Follow this step for heater core removal/repl acement only. Disconnect the upper heater hose at the
engine side and apply moderate air pressure [103.46 kPa (1.055 kg/cm
2, 15 psi) maximum air pressure]
into the hose for 30 seconds to blow the excess coolant out of the heater core.
4. When draining all of the coolant in the system, remo ve the reservoir tank and drain the coolant, then clean
the reservoir tank before installation.
CAUTION:
• Do not allow the coolant to contact the drive belts.
• Perform this step when engine is cold.
5. When draining all of the coolant in the system for engine removal or repair, open all of the drain plugs (A-D) on the cylin-
der block.
6. Check the drained coolant for contaminants such as rust, corro- sion or discoloration.
If the coolant is contaminated, flush the engine cooling system.
SMA412B
PBIC2487E
Revision: November 20132014 Altima NAM

MA-24
< PERIODIC MAINTENANCE >
ENGINE MAINTENANCE (VQ35DE)
REFILLING ENGINE COOLANT
1. Install the radiator drain plug. If the cooling system was drained completely, install the reservoir tank and
the cylinder block drain plugs.
• The radiator must be complete ly empty of coolant and water.
• Apply sealant to the threads of the cylinder block drain plug. Use Genuine High Performance
Thread Sealant or equivalent. Refer to GI-21, "Recommended Chemical Products and Sealants"
.
CAUTION:
Do not reuse copp er sealing washers.
2. If disconnected, reattach the upper radiator hose at the engine side.
3. Set the vehicle heater controls to the full HOT and heat er ON position. Turn the vehicle ignition ON with
the engine OFF as necessary to activate the heater mode.
4. Install the Tool by installing the radiator cap adapter onto the radiator neck opening. Then attach the gauge body assembly
with the refill tube and the venturi assembly to the radiator cap
adapter.
5. Insert the refill hose into the coolant mixture container that is placed at floor level. Make sure the ball valve is in the closed
position.
• Use recommended coolant or equivalent.
Refer to MA-11, "FOR USA AND CANADA : Fluids and Lubri-
cants".
CAUTION:
Do not use any cooling system additives such as radiator
sealer. Additives may clog th e cooling system and cause
damage to the engine, transm ission and/or cooling system.
6. Install an air hose to the venturi assembly, the air pressure must be within specification.
CAUTION:
The compressed air supply must be equipped with an air dryer.
7. The vacuum gauge will begin to rise and there will be an audible hissing noise. During this process open the ball valve on the refill hose slightly. Coolant will be vi sible rising in the refill hose. Once the refill hose is
full of coolant, close the ball valve. This will purge any air trapped in the refill hose. Radiator drain plug : Refer to
CO-16, "Exploded View"
Cylinder block front drain plug (LH) (A) (ex-
cept Canada) : 62.0 N·m (6.3 kg-m, 46 ft-lb)
Cylinder block water drain plug (B) : 6.0 N·m (0.6 kg-m, 53 in-lb)
Cylinder block rear drain plug (C) : 78.0 N·m (8.0 kg-m, 58 ft-lb)
Cylinder block RH banjo bolt (D) (oil cooler) : 19.6 N·m (2.0 kg-m, 14 ft-lb)
Tool number : KV991J0070 (J-45695)
Engine coolant capacity
(with reservoir tank) : Refer to
CO-53, "Capacity"
.
Compressed air
supply pressure : 549 - 824 kPa (5.6 - 8.4 kg/cm
2,
80 - 119 psi)
LLIA0058E
Revision: November 20132014 Altima NAM

ENGINE MAINTENANCE (VQ35DE)MA-25
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8. Continue to draw the vacuum until the gauge reaches 28 inches
of vacuum. The gauge may not reach 28 inches in high altitude
locations, use the vacuum specifications based on the altitude
above sea level.
9. When the vacuum gauge has reached the specified amount, disconnect the air hose and wait 20 seconds
to see if the system loses any vacuum. If the vacuum level drops, perform any necessary repairs to the
system and repeat steps 6 - 8 to br ing the vacuum to the specified amount. Recheck for any leaks.
10. Place the coolant container (with the refill hose inserted) at the same level as the top of the radiator. Then
open the ball valve on the refill hose so the coolant will be drawn up to fill the cooling system. The cooling
system is full when the vacuum gauge reads zero.
CAUTION:
Do not allow the coolant container to get too low when filling, to avoid air from being drawn into
the cooling system.
11. Remove the Tool from the radiator neck opening.
12. Fill the cooling system reservoir tank to the specif ied level and install the radiator cap. Run the engine to
warm up the cooling system and top up the system as necessary.
13. Install the engine under cover. Refer to EXT-17, "Removal and Installation"
.
FLUSHING COOLING SYSTEM
1. Fill the radiator from the filler neck above the r adiator upper hose and reservoir tank with clean water and
reinstall radiator filler cap.
2. Run the engine until it reaches normal operating temperature.
3. Rev the engine two or three times under no-load.
4. Stop the engine and wait until it cools down.
5. Drain the water from the system. Refer to CO-36, "Changing Engine Coolant"
.
6. Repeat steps 1 through 5 until clear water begins to drain from the radiator.
FUEL LINES
FUEL LINES : InspectionINFOID:0000000009464557
Inspect fuel lines, fuel filler cap and fuel tank for improper attach-
ment, leaks, cracks, damage, loos e connections, chafing or deterio-
ration.
If necessary, repair or replace damaged parts.
AIR CLEANER FILTER
Altitude above sea level Vacuum gauge reading
0 - 100 m (328 ft) : 28 inches of vacuum
300 m (984 ft) : 27 inches of vacuum
500 m (1,641 ft) : 26 inches of vacuum
1,000 m (3,281 ft) : 24 - 25 inches of vacuum
LLIA0057E
SMA803A
Revision: November 20132014 Altima NAM