engine spec INFINITI FX35 2004 Service Manual

CO-28
[VQ35DE]
WATER OUTLET AND WATER PIPING
Revision: 2004 November 2004 FX35/FX45
WATER OUTLET AND WATER PIPINGPFP:11060
Removal and InstallationABS007ZU
REMOVAL
1. Remove front engine undercover with power tool.
2. Drain engine coolant from drain plug and water drain plugs on radiator and both sides of cylinder block.
Refer to CO-11, "
Changing Engine Coolant" .
CAUTION:
Perform when engine is cold.
3. Remove engine cover with power tool. Refer to EM-19, "
INTAKE MANIFOLD COLLECTOR" .
4. Remove air duct and air cleaner case assembly. Refer to EM-17, "
AIR CLEANER AND AIR DUCT" .
5. Disconnect radiator upper hose, heater hose and water hose.
6. Remove water outlet and water piping.
INSTALLATION
Note to the following, and install in the reverse order of removal.

Securely insert each hose, and install a clamp at a position where it does not interfere with the pipe bulge.

When inserting a water pipe into water outlet, apply neutral detergent to O-ring.
INSPECTION AFTER INSTALLATION

Check for leaks of engine coolant using radiator cap tester adapter [SST: EG17650301 (J-33984-A)] and
radiator cap tester (commercial service tool). Refer to CO-11, "
CHECKING COOLING SYSTEM FOR
LEAKS" .

Start and warm up engine. Visually make sure that there is no leaks of engine coolant and A/T fluid.
1. Harness bracket 2. Water hose 3. Water bypass hose
4. Engine coolant temperature sensor 5. Gasket 6. Water outlet
7. Heater hose 8. Water pipe 9. Radiator upper hose
10. Heater pipe 11. Washer 12. O-ring
SBIA0484E

SERVICE DATA AND SPECIFICATIONS (SDS)
CO-29
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Revision: 2004 November 2004 FX35/FX45
SERVICE DATA AND SPECIFICATIONS (SDS)PFP:00100
Standard and LimitABS004W0
ENGINE COOLANT CAPACITY (APPROXIMATE)
Unit: (US qt, Imp qt)
THERMOSTAT
RADIATOR
Unit: kPa (kg/cm2 , psi)
Engine coolant capacity [With reservoir tank (“MAX” level)] 8.6 (9-1/8, 7- 5/8)
Reservoir tank engine coolant capacity (at “MAX” level) 0.8 (7/8, 3/4)
ThermostatStandard
Valve opening temperature 76.0 - 79.0°C (169 - 174°F)
Maximum valve lift More than 8.6 mm / 90°C (0.339 in / 194°F)
Valve closing temperature More than 71°C (160°F)
Cap relief pressureStandard 78 - 98 (0.8 - 1.0, 11 - 14)
Limit 59 (0.6, 9)
Leakage test pressure 157 (1.6, 23)

CO-36
[VK45DE]
ENGINE COOLANT
Revision: 2004 November 2004 FX35/FX45
ENGINE COOLANTPFP:KQ100
InspectionABS006JI
LEVEL CHECK

Check if reservoir tank engine coolant level is within “MIN” to
“MAX” when engine is cool.

Adjust the engine coolant level as necessary.
LEAK CHECK

To check for leaks, apply pressure to the cooling system with
radiator cap tester (commercial service tool) and radiator cap
tester adapter (SST).
WARNING:
Do not remove radiator cap when engine is hot. Serious
burns could occur from high-pressure engine coolant
escaping from thermostat housing.
CAUTION:
Higher testing pressure than specified may cause radiator
damage.
NOTE:
In a case engine coolant decreases, replenish radiator with engine coolant.

If anything is found, repair or replace damaged parts.
Changing Engine CoolantABS006JJ
WARNING:

To avoid being scalded, do not change engine coolant when engine is hot.

Wrap a thick cloth around radiator cap and carefully remove radiator cap. First, turn radiator cap a
quarter of a turn to release built-up pressure. Then turn radiator cap all the way.
DRAINING ENGINE COOLANT
1. Remove engine front undercover with power tool.
2. Open radiator drain plug at the bottom of radiator, and then
remove radiator cap.

Be careful not to allow engine coolant to contact drive
belts.
When draining all of engine coolant in the system, open water drain plugs on engine cylinder
block. Refer to EM-241, "
DISASSEMBLY" .
3. Check drained engine coolant for contaminants such as rust, corrosion or discoloration.
If contaminated, flush the engine cooling system. Refer to CO-38, "
FLUSHING COOLING SYSTEM" .
4. Remove reservoir tank, drain engine coolant and clean reservoir tank before installing.
SMA412B
Testing pressure : 157 kPa (1.6 kg/cm2 , 23 psi)
PBIC1528E
SBIA0444E

ENGINE COOLANT
CO-37
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Revision: 2004 November 2004 FX35/FX45
REFILLING ENGINE COOLANT
1. Install reservoir tank, and radiator drain plug.
CAUTION:
Be sure to clean radiator drain plug and install with new O-ring.
If cylinder block water drain plugs are removed, close and tighten them. Refer to EM-244, "
ASSEM-
BLY" .
2. Remove air relief plug on heater hose.
3. Fill thermostat housing and reservoir tank to specified level.

Refill engine coolant up to filler neck of thermostat housing.

Pour engine coolant through engine coolant filler neck slowly of less than 2 (2-1/8 US qt, 1-3/4
Imp qt) a minute to allow air in system to escape.

Use Genuine Nissan long Life Antifreeze/Coolant or equivalent mixed with water (distilled or
demineralized). Refer to MA-12, "
RECOMMENDED FLUIDS AND LUBRICANTS" .

When engine coolant overflows air relief hole on heater hose,
install air relief plug.
4. Warm up engine to normal operating temperature with radiator cap installed.
5. Run engine at 3,000 rpm for 10 seconds and return to idle speed.

Repeat two or three times.
CAUTION:
Watch water temperature gauge so as not to overheat engine.
6. Stop engine and cool down to less than approximately 50°C (122°F).

Cool down using a fan to reduce the time.

If necessary, refill engine coolant up to filler neck of thermostat housing.
7. Refill reservoir tank to “MAX” level line with engine coolant.
8. Repeat steps 3 through 6 two or more times with radiator cap installed until engine coolant level no longer
drops.
9. Check cooling system for leaks with engine running.Radiator drain plug:
: 1.19 N·m (0.12 kg-m, 11 in-lb)
PBIC1530E
Engine coolant capacity
(With reservoir tank at “MAX” level):
Approx. 10.0 (10-5/8 US qt, 8-3/4 Imp qt)
Reservoir tank engine coolant capacity
(at “MAX” level):
0.8 (7/8 US qt, 3/4 lmp qt)
SMA412B

RADIATOR
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Revision: 2004 November 2004 FX35/FX45
11. Lift up and remove radiator.
CAUTION:
Do not damage or scratch A/C condenser and radiator core
when removing.
INSTALLATION
Install in the reverse order of removal.
INSPECTION AFTER INSTALLATION

Check for leaks of engine coolant using radiator cap tester adapter [SST: EG17650301 (J33984-A)] and
radiator cap tester (commercial service tool). Refer to CO-36, "
LEAK CHECK" .

Start and warm up engine. Visually make sure that there is no leaks of engine coolant and A/T fluid.
Checking Radiator CapABS008FY
1. Pull negative-pressure valve to open it and make sure that it
closes completely when released.

Make sure that there is no dirt or damage on the valve seat of
radiator cap negative-pressure valve.

Make sure that there are no unusualness in the opening and
closing conditions of negative-pressure valve.
2. Check radiator cap relief pressure.

When connecting radiator cap to radiator cap tester (commer-
cial service tool) and radiator cap tester adapter [SST], apply
engine coolant to the cap seal surface.

Replace radiator cap if there is an unusualness in negative-
pressure valve, or if the relief pressure exceed the limit.
Checking RadiatorABS008FZ
Check radiator for mud or clogging. If necessary, clean radiator as follows:
CAUTION:

Be careful not to bend or damage the radiator fins.

When radiator is cleaned without removal, remove all surrounding parts such as cooling fan, radi-
ator shroud and horns. Then tape the harness and electrical connectors to prevent water from
entering.
1. Apply water by hose to the back side of the radiator core vertically downward.
2. Apply water again to all radiator core surface once per minute.
3. Stop washing if any stains no longer flow out from radiator.
4. Blow air into the back side of radiator core vertically downward.
PBIC1536E
SMA967B
Standard:
78 - 98 kPa (0.8 - 1.0 kg/cm
2 , 11 - 14 psi)
Limit:
59 kPa (0.6 kg/cm
2 , 9 psi)
SLC755A

COOLING FAN
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Revision: 2004 November 2004 FX35/FX45
COOLING FANPFP:21140
Removal and Installation (Crankshaft Driven Type)ABS006JT
REMOVAL
1. Remove air duct (inlet). Refer to EM-172, "AIR CLEANER AND AIR DUCT" .
2. Remove engine front undercover with power tool.
3. Remove radiator shroud (lower). Refer to CO-39, "
Removal and Installation" .
4. Remove drive belts. Refer to EM-169, "
DRIVE BELTS" .
5. Remove cooling fan.
CAUTION:
Do not damage or scratch radiator core when removing.
INSPECTION AFTER REMOVAL
Fan Coupling
Inspect fan coupling for oil leakage and bimetal conditions.

If anything is found, replace fan coupling.
Cooling Fan
Inspect cooling fan for crack or unusual bend.

If anything is found, replace cooling fan.
INSTALLATION
Note to the following, install in the reverse order of removal.

Install cooling fan with its front mark “F” facing front of vehicle. Refer to CO-47, "Removal and Installation
(Crankshaft Driven Type)" .
1. Cooling fan 2. Fan coupling 3. Fan pulley
4. Water pump
PBIC1537E
SLC072

CO-48
[VK45DE]
COOLING FAN
Revision: 2004 November 2004 FX35/FX45
Removal and Installation (Motor Driven Type)ABS006JU
REMOVAL
1. Remove front grille. Refer to EI-23, "FRONT GRILLE" .
2. Disconnect harness connector from fan motor.
3. Remove cooling fan assembly.
CAUTION:
Do not damage or scratch A/C condenser when removed.
INSTALLATION
Install in the reverse order of removal.

Cooling fan is controlled by ECM. For details. Refer to EC-1142, "DTC P1217 ENGINE OVER TEMPER-
ATURE" .
Disassembly and Assembly (Motor Driven Type)ABS00A3O
DISASSEMBLY
1. Remove cooling fan from fan motor.
2. Remove fan motor from fan grille.
INSPECTION AFTER DISASSEMBLY
Cooling Fan
Inspect cooling fan for crack or unusual bend.

If anything is found, replace cooling fan.
ASSEMBLY
Assemble in the reverse order of disassembly.
1. Cooling fan 2. Fan grille 3. Fan motor
PBIC1666E

WATER PUMP
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Revision: 2004 November 2004 FX35/FX45
WAT E R P U MPPFP:21020
Removal and InstallationABS006JO
CAUTION:

When removing water pump, be careful not to get engine coolant on drive belt.

Water pump can not be disassembled and should be replaced as a unit.
REMOVAL
1. Drain engine coolant from drain plugs on radiator and both side of cylinder block. Refer to CO-36, "Chang-
ing Engine Coolant" and EM-241, "DISASSEMBLY" .
CAUTION:

Perform this step when engine is cold.

Do not spill engine coolant on drive belts.
2. Remove following parts:

Engine front undercover

Air duct (inlet); Refer to EM-172, "AIR CLEANER AND AIR DUCT" .

Alternator, water pump and A/C compressor belt; Refer to EM-169, "DRIVE BELTS" .
3. Remove fan coupling with cooling fan, and then water pump pulley.
4. Remove water pump.

Engine coolant will leak from the cylinder block, so have a receptacle ready under vehicle.
CAUTION:

Handle the water pump vane so that it does not contact any other parts.

Do not disassemble water pump.
INSPECTION AFTER REMOVAL

Visually check that there is no significant dirt or rusting on water
pump body and vane.

Make sure there is no looseness in vane shaft, and that it turns
smoothly when rotated by hand.

If anything is found, replace water pump.
1. Water pump pulley 2. Water pump 3. Gasket
PBIC1538E
PBIC1539E

CO-50
[VK45DE]
WATER PUMP
Revision: 2004 November 2004 FX35/FX45
INSTALLATION
Install in the reverse order of removal.
INSPECTION AFTER INSTALLATION

Check for leaks of engine coolant using radiator cap tester adapter [SST: EG17650301 (J33984-A)] and
radiator cap tester (commercial service tool). Refer to CO-36, "
LEAK CHECK" .

Start and warm up engine. Visually make sure that there is no leaks of engine coolant.

THERMOSTAT AND WATER CONTROL VALVE
CO-53
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Revision: 2004 November 2004 FX35/FX45

Install thermostat with jiggle valve facing upwards. (The position
deviation may be within the range of ±10 degrees)

Install water control valve with the up-mark facing up and the
frame center part facing upwards. (The position deviation may
be within the range of ±10 degrees)
Water Outlet Pipe and Heater Pipe
First apply a neutral detergent to O-rings, then quickly insert the insertion parts of the water outlet pipe and
heater pipe into the installation holes.
INSPECTION AFTER INSTALLATION

Check for leaks of engine coolant using radiator cap tester adapter [SST: EG17650301 (J33984-A)] and
radiator cap tester (commercial service tool). Refer to CO-36, "
LEAK CHECK" .

Start and warm up engine. Visually make sure that there is no leaks of engine coolant.
PBIC0158E