water pump NISSAN TEANA 2014 Service Manual

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ENGINE
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SECTION CO
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CONTENTS
ENGINE COOLING SYSTEM
QR25DE
PRECAUTION ................ ...............................
3
PRECAUTIONS .............................................. .....3
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ......
3
Precaution for Liquid Gasket .....................................3
PREPARATION ............................................5
PREPARATION .............................................. .....5
Special Service Tool ........................................... ......5
Commercial Service Tool ..........................................5
SYSTEM DESCRIPTION ..............................7
COOLING SYSTEM ....................................... .....7
Cooling Circuit ..................................................... ......7
Schematic .................................................................8
OVERHEATING CAUSE ANALYSIS ..................9
Troubleshooting Chart ...............................................9
PERIODIC MAINTENANCE .........................11
ENGINE COOLANT ....................................... ....11
System Inspection ............................................... ....11
Changing Engine Coolant .......................................12
REMOVAL AND INSTALLATION ...............16
RADIATOR ..................................................... ....16
Exploded View .................................................... ....16
Removal and Installation .........................................17
Inspection ............................................................ ....17
COOLING FAN ...................................................18
Exploded View .................................................... ....18
Removal and Installation .........................................18
WATER PUMP ............................................... ....20
Exploded View ..................................................... ....20
Removal and Installation .........................................20
THERMOSTAT AND THERMOSTAT HOUS-
ING ....................................................................
22
Exploded View ..................................................... ....22
Removal and Installation .........................................22
WATER OUTLET AND WATER PIPING ..........24
Exploded View .........................................................24
Removal and Installation .........................................24
SERVICE DATA AND SPECIFICATIONS
(SDS) ............... .............................................
26
SERVICE DATA AND SPECIFICATIONS
(SDS) .................................................................
26
Capacity ............................................................... ....26
Thermostat ..............................................................26
Radiator ...................................................................26
VQ35DE
PRECAUTION ...... ........................................
27
PRECAUTIONS .................................................27
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ....
27
Precaution for Liquid Gasket ...................................27
PREPARATION ...........................................29
PREPARATION .................................................29
Special Service Tool ............................................ ....29
Commercial Service Tool ........................................29
SYSTEM DESCRIPTION .............................31
COOLING SYSTEM ..........................................31
Cooling Circuit ..................................................... ....31
Schematic ................................................................32
Revision: November 20132014 Altima NAM

CO-2
OVERHEATING CAUSE ANALYSIS ................33
Troubleshooting Chart ......................................... ...33
PERIODIC MAINTENANCE ..................... ...35
ENGINE COOLANT ........................................ ...35
System Inspection ............................................... ...35
Changing Engine Coolant .......................................36
REMOVAL AND INSTALLATION ...............40
RADIATOR ..................................................... ...40
Exploded View ..................................................... ...40
Removal and Installation ........................................41
Inspection ...............................................................41
COOLING FAN ..................................................42
Exploded View ..................................................... ...42
Removal and Installation ........................................42
WATER PUMP ...................................................44
Exploded View ..................................................... ...44
Removal and Installation .........................................44
THERMOSTAT AND THERMOSTAT HOUS-
ING .................................................................. ...
49
Exploded View ..................................................... ...49
Removal and Installation .........................................49
WATER OUTLET AND WATER PIPING ....... ...51
Exploded View ..................................................... ...51
Removal and Installation .........................................51
SERVICE DATA AND SPECIFICATIONS
(SDS) ............... ...........................................
53
SERVICE DATA AND SPECIFICATIONS
(SDS) .............................................................. ...
53
Capacity ............................................................... ...53
Thermostat ..............................................................53
Radiator ..................................................................53
Revision: November 20132014 Altima NAM

PREPARATIONCO-5
< PREPARATION > [QR25DE]
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PREPARATION
PREPARATION
Special Service ToolINFOID:0000000009460385
The actual shapes of the tools may differ from those illustrated here.
Commercial Service ToolINFOID:0000000009460386
Tool number
(TechMate No.)
Tool name Description
EG17650301
(J-33984-A)
Radiator cap tester adapter Adapting radiator cap tester to radiator cap
and radiator filler neck
a: 28 (1.10) dia.
b: 31.4 (1.236) dia.
c: 41.3 (1.626) dia.
Unit: mm (in)
K V 1 0 1111 0 0
(J-37228)
Seal cutter Removing chain tensioner cover and water
pump cover
KV991J0070
(J-45695)
Coolant Refill Tool Refilling engine cooling system
—
(J-23688)
Engine coolant refractometer Checking concentration of ethylene glycol in
engine coolant
S-NT564
NT046
LMA053
WBIA0539E
Revision: November 20132014 Altima NAM

COOLING SYSTEMCO-7
< SYSTEM DESCRIPTION > [QR25DE]
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SYSTEM DESCRIPTION
COOLING SYSTEM
Cooling CircuitINFOID:0000000009460387
ALBIA0940ZZ
1. Thermostat 2. Water outlet 3. Cylinder block (Thermostat housing)
4. Water inlet 5. Radiator 6. Water pump
7. Cylinder block 8. Cylinder head A. Open
B. Closed C. To electric throttle control actuator D. To oil cooler
E. To heater F. From heater G. From electric throttle control actuator
H. From oil cooler
Revision: November 20132014 Altima NAM

CO-8
< SYSTEM DESCRIPTION >[QR25DE]
COOLING SYSTEM
Schematic
INFOID:0000000009460388
ALBIA0941ZZ
1. Radiator 2. Water inlet 3. Reservoir tank
4. Thermostat 5. Thermostat housing 6. Water pump
7. Cylinder head 8. Cylinder block 9. Water outlet
10. Heater 11. Oil cooler 12. Electric throttle control actuator
A. Open B. Closed
Revision: November 20132014 Altima NAM

OVERHEATING CAUSE ANALYSISCO-9
< SYSTEM DESCRIPTION > [QR25DE]
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OVERHEATING CAUSE ANALYSIS
Troubleshooting ChartINFOID:0000000009460389
Symptom Check items
Cooling sys-
tem parts
malfunction Poor heat transfer
Water pump malfunction Worn or loose drive belt
—
Thermostat stuck closed Coolant circulation
Damaged fins Dust contamination or rock
clogging
Mechanical damage
Clogged radiator cooling
tube Excess foreign material
(rust, dirt, sand, etc.)
Reduced air flow Cooling fan does not oper-
ate
Engine cooling fans —
High resistance to fan rota-
tion
Damaged fan blades
Damaged radiator shroud — Radiator shroud —
Improper coolant mixture
ratio — Coolant viscosity —
Poor coolant quality — Periodic maintenance —
Insufficient coolant Coolant leaks Cooling hose
Loose clamp
Cracked hose
Water pump Poor sealing
Radiator cap Loose
Poor sealing
Radiator O-ring for damage, deterio-
ration or improper fitting
Cracked radiator tank
Cracked radiator core
Reservoir tank Cracked reservoir tank
Overflowing reservoir tank Exhaust gas leaks into cool-
ing system Cylinder head deterioration
Cylinder head gasket deteri-
oration
Revision: November 20132014 Altima NAM

CO-20
< REMOVAL AND INSTALLATION >[QR25DE]
WATER PUMP
WATER PUMP
Exploded ViewINFOID:0000000009460397
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 th ick 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.
CAUTION:
• When removing water pump assembly, be car eful not to get coolant on drive belt.
• Water pump cannot be disassembled and should be replaced as a unit.
• After installing water pump, connect hose and clamp securely, then check for leaks using radiator
cap tester.
NOTE:
When removing components such as hoses, tubes/lines, etc. , cap or plug openings to prevent fluid from spill-
ing.
Removal and InstallationINFOID:0000000009460398
REMOVAL
1. Drain engine coolant from the radiator. Refer to CO-12, "Changing Engine Coolant".
CAUTION:
Perform when the engine is cold.
2. Remove the core support cover clips (A), then remove the core support cover (1).
ALBIA0823GB
1. Water pump 2-5. Tightening order 6. Gasket
7. Water pump housing 8-11. Tightening order 12. Water pipe
13. Gasket 14. O-ring
ALKIA2602ZZ
Revision: November 20132014 Altima NAM

WATER PUMPCO-21
< REMOVAL AND INSTALLATION > [QR25DE]
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3. Remove fender protector side cover (RH). Refer to
EXT-26, "FENDER PROTECTOR : Removal and
Installation".
4. Remove engine under cover. Refer to EXT-17, "Removal and Installation"
.
5. Remove engine room cover. Refer to EXT-17, "Removal and Installation"
.
6. Remove front air duct. Refer to EM-84, "Removal and Installation"
.
7. Remove generator. Refer to CHG-32, "Removal and Installation"
.
8. Remove water pump bolts.
9. Remove the water pump and gasket, as necessary. CAUTION:
• Handle the water pump vane so that it does not contact any other parts.
• Water pump cannot be disassembled an d should be replaced as an assembly.
10. Remove water pipe, O-rings, water pump housing, and gasket.
INSPECTION AFTER REMOVAL
• Visually check that there is no significant dirt or rusting on the water pump body and vane.
• Check that there is no looseness in the vane shaft, and that it turns
smoothly when rotated by hand.
• If the water pump does not perform properly, replace the water pump assembly.
INSTALLATION
Installation is in the reverse order of removal.
• When inserting water pipe end to cylinder block, apply a mild soap to O-ring. Then insert it immediately.
CAUTION:
Do not reuse O-rings.
Do not reuse gasket.
INSPECTION AFTER INSTALLATION
• After installation refill engine coolant and check for leaks. Refer to CO-12, "Changing Engine Coolant" and
CO-11, "System Inspection"
.
ALBIA0939ZZ
Revision: November 20132014 Altima NAM

PREPARATIONCO-29
< PREPARATION > [VQ35DE]
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PREPARATION
PREPARATION
Special Service ToolINFOID:0000000009460408
The actual shapes of the tools may
differ from those illustrated here.
Commercial Service ToolINFOID:0000000009460409
Tool number
(TechMate No.)
Tool name Description
EG17650301
(J-33984-A)
Radiator cap tester adapter Adapting radiator cap tester to radiator cap
and radiator filler neck
a: 28 (1.10) dia.
b: 31.4 (1.236) dia.
c: 41.3 (1.626) dia.
Unit: mm (in)
K V 1 0 1111 0 0
(J-37228)
Seal cutter Removing chain tensioner cover and water
pump cover
KV991J0070
(J-45695)
Coolant Refill Tool Refilling engine cooling system
—
(J-23688)
Engine coolant refractometer Checking concentration of ethylene glycol in
engine coolant
S-NT564
NT046
LMA053
WBIA0539E
Revision: November 20132014 Altima NAM

COOLING SYSTEMCO-31
< SYSTEM DESCRIPTION > [VQ35DE]
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SYSTEM DESCRIPTION
COOLING SYSTEM
Cooling CircuitINFOID:0000000009460410
AWBIA1193GB
1. Cylinder block (RH) 2. Oil cooler 3. Cylinder head (RH)
4. Water pump 5. Radiator 6. Water inlet
7. Thermostat 8. Cylinder head (LH) 9. Cylinder block (LH)
A. To heater B. To electric throttle control actuator C. From heater
D. From electric throttle control actuator
Revision: November 20132014 Altima NAM