coolant NISSAN TIIDA 2007 Service Owner's Guide

CO-44
< ON-VEHICLE REPAIR >[MR18DE]
WATER PUMP
WATER PUMP
ComponentINFOID:0000000001337848
Removal and InstallationINFOID:0000000001337849
REMOVAL
1. Drain engine coolant. Refer to CO-35, "Changing Engine Coolant".
CAUTION:
Perform this step when the engine is cold.
2. Remove drive belt auto-tensioner. Refer to EM-153, "
Removal and Installation of Drive Belt Auto Ten-
sioner".
3. Remove water pump.
CAUTION:
 Handle water pump vane so that it does not contact any other parts.
 Water pump cannot be disassembled and should be replaced as a unit.
INSPECTION AFTER REMOVAL
 Visually check that there is no significant dirt or rusting on water
pump body and vane (A).
 Make sure that there is no looseness in vane shaft, and that it turns
smoothly when rotated by hand.
 Replace water pump, if necessary.
INSTALLATION
Installation is in the reverse order of removal.
INSPECTION AFTER INSTALLATION
 Check for leaks of engine coolant. Refer to CO-35, "Inspection".
 Start and warm up the engine. Visually check if there is no leaks of engine coolant.
1. Gasket 2. Water pump
PBIC3921E
PBIC3313J

THERMOSTAT
CO-45
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THERMOSTAT
ComponentINFOID:0000000001337850
Removal and InstallationINFOID:0000000001337851
REMOVAL
1. Drain engine coolant. Refer to CO-35, "Changing Engine Coolant".
2. Remove water inlet.
3. Remove thermostat.
4. Remove water pump. Refer to CO-44, "
Removal and Installation".
5. Remove thermostat housing.
INSPECTION AFTER REMOVAL
 Place a thread (A) so that it is caught in the valves of thermostat
(1). Immerse fully in a container (B) filled with water. Heat while
stirring.
 The valve opening temperature is the temperature at which the
valve opens and falls from the thread.
 Continue heating. Check the full open valve lift amount.
 After checking the maximum valve lift amount, lower the water
temperature and check the valve closing temperature.
1. Thermostat housing 2. Water hose 3. Radiator hose (lower)
4. Water inlet 5. Thermostat 6. Rubber ring
7. Gasket A. To oil cooler B. To radiator
Engine front
PBIC4485E
PBIC3314J

CO-46
< ON-VEHICLE REPAIR >[MR18DE]
THERMOSTAT
 If out of the specification, replace thermostat.
INSTALLATION
Installation is in the reverse order of removal.
Thermostat
CAUTION:
Replace the rubber ring with a new one.
 Install thermostat while making rubber ring (1) groove fit to thermo-
stat flange (A) around the whole circumference.
 Install thermostat (1) into the thermostat housing (2) with jiggle
valve (A) facing upwards.
Thermostat Housing
CAUTION:
Replace the rubber ring with a new one.
 Securely insert the rubber ring into the mating groove of thermostat housing and install it.
 Install the thermostat housing to the cylinder block without displacing the gasket from the gasket position.
INSPECTION AFTER INSTALLATION
 Check for leaks of engine coolant. Refer to CO-35, "Inspection".
 Start and warm up the engine. Visually check for engine coolant leaks.
ItemsThermostat
Valve opening temperature 80.5 - 83.5°C (177 - 182°F)
Maximum valve lift 8 mm/ 95°C (0.315 in/ 203°F)
Valve closing temperature 77°C (171°F)
PBIC3315J
PBIC3548J

WATER OUTLET AND WATER CONTROL VALVE
CO-47
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WATER OUTLET AND WATER CONTROL VALVE
ComponentINFOID:0000000001337852
Removal and InstallationINFOID:0000000001337853
REMOVAL
1. Drain engine coolant. Refer to CO-35, "Changing Engine Coolant".
CAUTION:
Perform this step when the engine is cold.
2. Remove air duct. Refer to EM-154, "
Component".
3. Remove radiator hose (upper). Refer to CO-40, "
Component".
4. Remove heater hoses and water hoses.
5. Remove water outlet.
6. Remove water control valve.
7. Remove engine coolant temperature sensor, if necessary.
CAUTION:
 Handle carefully to avoid any shock to engine coolant temperature sensor.
 Replace the gasket with a new one.
INSPECTION AFTER REMOVAL
1. Engine coolant temperature sensor 2. Rubber ring 3. Water control valve
4. Gasket 5. Water hose 6. Gasket
7. Water hose 8. Water outlet 9. Heater hose
10. Heater hose 11. Radiator hose (upper) 12. Water hose
A. To heater B. To electronic throttle control actuator C. To oil cooler
D. To radiator Front
WBIA0856E

WATER OUTLET AND WATER CONTROL VALVE
CO-49
< ON-VEHICLE REPAIR >[MR18DE]
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Install water hoses (3),(5) as shown.
 Electric throttle control actuator (1)
 Clamp (2)
 Water outlet (4)
 Paint mark (A)
 Clamp shall not interfere with the bulged area (B)
INSPECTION AFTER INSTALLATION
 Check for leaks of engine coolant. Refer to CO-35, "Inspection".
 Start and warm up the engine. Visually check if there is no leaks of engine coolant. C : 3 - 7 mm (0.12 - 0.29 in)
AWBIA011 5GB

SERVICE DATA AND SPECIFICATIONS (SDS)
CO-51
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SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
Standard and LimitINFOID:0000000001337854
CAPACITY
Unit: (lmp qt)
THERMOSTAT
WATER CONTROL VALVE
RADIATOR
Unit: kPa (bar, kg/cm2, psi)
Engine coolant capacity (with reservoir tank at “MAX” level) Approx. 6.8 (6.0)
Valve opening temperature 80.5 - 83.5°C (177 - 182°F)
Maximum valve lift 8 mm/ 95°C (0.315 in/ 203°F)
Valve closing temperature 77°C (171°F)
Valve opening temperature 93.5 - 96.5°C (200 - 206°F)
Maximum valve lift 8 mm/ 108°C (0.315 in/ 226°F)
Valve closing temperature 90°C (194°F)
Cap relief pressureStandard 78 - 98 (0.78 - 0.98, 0.8 - 1.0, 11- 14)
Limit 59 (0.59, 0.6, 9)
Leakage test pressure 157 (1.57, 1.6, 23)

OVERHEATING CAUSE ANALYSIS
CO-53
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SYMPTOM DIAGNOSIS
OVERHEATING CAUSE ANALYSIS
Troubleshooting ChartINFOID:0000000001381581
Symptom Check items
Cooling sys-
tem parts
malfunctionPoor heat transferWater pump malfunction Worn timing belt
— Thermostat stuck closed —
Damaged finsDust contamination or pa-
per clogging
Mechanical damage
Clogged radiator cooling
tubeExcess foreign material
(rust, dirt, sand, etc.)
Reduced air flowCooling fan does not oper-
ate
Fan assembly — High resistance to fan rota-
tion
Damaged fan blades
Damaged radiator shroud — — —
Improper coolant mixture
ratio———
Poor coolant quality — — —
Insufficient coolantCoolant leaksCooling hoseLoose clamp
Cracked hose
Water pump Poor sealing
Reservoir tank capLoose
Poor sealing
RadiatorO-ring for damage, deterio-
ration or improper fitting
Cracked radiator tank
Cracked radiator core
Reservoir tank Cracked reservoir tank
Overflowing reservoir tankExhaust gas leaks into cool-
ing systemCylinder head deterioration
Cylinder head gasket deteri-
oration

CO-56
< PRECAUTION >[K9K]
PRECAUTIONS
CAUTION:
Be careful not to damage the mating surfaces.
 Tap Tool to insert it (1), and then slide it by tapping on the side (2)
as shown.
 In areas where Tool is difficult to use, use plastic hammer to lightly
tap the parts, to remove it.
CAUTION:
If for some unavoidable reason suitable tool such as screw-
driver is used, be careful not to damage the mating surfaces.
LIQUID GASKET APPLICATION PROCEDURE
1. Remove old liquid gasket adhering to the liquid gasket applica-
tion surface and the mating surface, using scraper.
 Remove liquid gasket completely from the groove of the liquid
gasket application surface, bolts, and bolt holes.
2. Thoroughly clean the mating surfaces and remove adhering
moisture, grease and foreign materials.
3. Attach liquid gasket tube to Tool.
Use Genuine RTV Silicone Sealant or equivalent. Refer to GI-27, "
Recommended Chemical Prod-
ucts and Sealants".
4. Apply liquid gasket without breaks to the specified location with the specified dimensions.
 If there is a groove for the liquid gasket application, apply liquid gasket to the groove.
 As for the bolt holes, normally apply liquid gasket inside the
holes. Occasionally, it should be applied outside the holes.
Make sure to read the text of service manual.
 Within five minutes of liquid gasket application, install the mat-
ing component.
 If liquid gasket protrudes, wipe it off immediately.
 Do not retighten nuts or bolts after the installation.
 After 30 minutes or more have passed from the installation, fill
engine oil and engine coolant.
CAUTION:
If there are specific instructions in this manual, observe them. Tool number : KV10111100 (J-37228)
WBIA0566E
Tool number : WS39930000 ( — )
PBIC0003E
WBIA0567E
SEM159F

PREPARATION
CO-57
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PREPARATION
PREPARATION
Special Service ToolsINFOID:0000000001381583
Commercial Service ToolsINFOID:0000000001381584
NISSAN tool number
(RENAULT tool number)
Tool nameDescription
—
(M.S. 554-07)
Reservoir tank cap tester
1. Adapter A
—
(M.S. 554-01)
2. Adapter B
—
(M.S. 554-06)Leak checking
Checking reservoir tank cap
K V 1 0 1111 0 0
(J-37228)
Seal cutterRemoving chain tensioner cover and water
pump cover
—
(J-23688)
Engine coolant refractometerChecking concentration of ethylene glycol in
engine coolant
E1BIA0058ZZ
NT046
WBIA0539E
NISSAN tool number
Tool nameDescription
Radiator cap tester Checking radiator and radiator cap
WS39930000
Tube pressurePressing the tube of liquid gasket
PBIC1982E
S-NT052

CO-58
< ON-VEHICLE MAINTENANCE >[K9K]
ENGINE COOLANT
ON-VEHICLE MAINTENANCE
ENGINE COOLANT
InspectionINFOID:0000000001381585
LEVEL CHECK
 Check if the reservoir tank engine coolant level is within the “MIN”
to “MAX” range when engine is cool.
 Adjust the engine coolant level as necessary.
CHECKING COOLING SYSTEM FOR LEAKS
To check for leaks, apply pressure to the cooling system using suit-
able tool.
WARNING:
Never remove the radiator cap when the engine is hot. Serious
burns could occur from high pressure coolant escaping from
the radiator.
CAUTION:
Higher pressure than specified may cause radiator damage.
DrainingINFOID:0000000001381586
WARNING:
 To avoid being scalded, do not change engine coolant when engine is hot.
 Wrap a thick cloth around radiator cap and carefully remove the cap. First, turn the cap a quarter of a
turn to release built-up pressure. Then turn the cap all the way.
 Be careful not to allow engine coolant to contact drive belt.
1. Remove engine undercover using power tool.
2. Disconnect radiator hose (lower) from radiator and remove reservoir tank cap.
When draining all of engine coolant in the system, open water drain plug on cylinder block. Refer
to EM-314, "
Exploded View".
CAUTION:
 Perform this step when engine is cold.
 Do not spill engine coolant on drive belt.
3. Remove air relief plug from water outlet. Refer to EM-302, "
Exploded View".
4. Remove reservoir tank as necessary, and drain engine coolant and clean reservoir tank before installing.
5. Check drained coolant for contaminants such as rust, corrosion or discoloration.
If contaminated, flush engine cooling system. Refer to CO-59, "
Flushing".
RefillingINFOID:0000000001381587
Before starting work, turn off the automatic air conditioner and the blower motor.
1. Install reservoir tank if removed, lower radiator hose and air relief plug.
If water drain plug on cylinder block is removed, install and tighten it. Refer to EM-314,
"Exploded View".
2. Fill reservoir tank slowly with coolant until coolant spills from the air relief hole.
SMA412B
Testing pressure
: 157 kPa (1.6 kg/cm2, 23 psi)
WBIA0568E