2004 NISSAN TERRANO engine

Cooling Circuit
NLC011
ENGINE COOLING SYSTEMTD27Ti
LC-27
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System Inspection
CHECKING HOSES
Check hoses for proper attachment, leaks, cracks, damage, loose
connections, chafing and deterioration.
CHECKING RADIATOR CAP
To check radiator cap, apply pressure to the cap with a cap tester.Radiator cap relief pressure:78-98kPa
(0.78 - 0.98 bar, 0.8 - 1.0 kg/cm
2, 11 - 14 psi)
CHECKING COOLING SYSTEM FOR LEAKS
Appear pressure to the cooling system by means of a tester to
check for leakage. Testing pressure:157 kPa (1.57 bar, 1.6 kg/cm
2, 23 psi)
CAUTION:
Higher than the specified pressure may cause radiator dam-
age.
SLC613
SMA990A
ENGINE COOLING SYSTEMTD27Ti
LC-28
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Water Pump
REMOVAL AND INSTALLATION
Drain coolant from drain plugs on cylinder block and radiator.Cylinder block drain plug:
(Use proper sealant)
:20-29N ×m (2.0 - 3.0 kg-m, 14 - 22 ft-lb)
CAUTION:
I When removing water pump assembly, be careful not to
spill coolant on drive belt.
I Water pump cannot be disassembled and should be
replaced as a unit.
I Always replace with new gasket.
I After installing water pump, connect hose and clamp
securely, then check for leaks using radiator cap tester.
NLC012
NLC058
ENGINE COOLING SYSTEMTD27Ti
LC-29
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INSPECTION
1. Check for badly rusted or corroded body assembly and vane.
2. Check the water pump bushing for excessive end play andirregular movement.
3. Check fan coupling for rough operation, oil leakage or bent bimetal.
The water pump and fan coupling cannot be disassembled and
should be replaced as a unit.
SLC979
SLC244
SLC245
ENGINE COOLING SYSTEMTD27Ti
Water Pump (Cont'd)
LC-30
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Thermostat
q1Water outlet
q
2Thermostat with jiggle valve
q
3Rubber seal q
4Water connector
q
5Thermostat housing q
6Engine coolant temperature sen-
sor
q
7Thermal transmitter
CAUTION:
I After installation, run engine for a few minutes, and check
for leaks.
I Be careful not to spill coolant over engine compartment.
Place a rag to absorb coolant.
INSPECTION
1. Check for valve seating condition at ordinary temperatures. It
should seat tightly.
2. Check valve opening temperature and maximum valve lift.
Valve opening temperature ÉC (ÉF) 88 (190)
Max. valve lift mm/ÉC (in/ÉF)8/100
(0.315/212)
3. Then check if valve closes at 5ÉC (9ÉF) below valve opening temperature.
NLC059
SLC343
ENGINE COOLING SYSTEMTD27Ti
LC-31
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Radiator
CAUTION:
When filling radiator with coolant, refer to MA section.
NLC082
ENGINE COOLING SYSTEMTD27Ti
LC-32
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Cooling Fan
DISASSEMBLY AND ASSEMBLY
IProper alignment of components is essential.
Improper alignment will cause them to wobble and may even-
tually cause the fan to separate from the water pump causing
extensive damage.
I If front mark q
Fis present, install fan so that side marked qF
faces the front.
INSPECTION
Check fan coupling for irregular operation, oil leakage or bent
bimetal.
YLC041
SLC072
ENGINE COOLING SYSTEMTD27Ti
LC-33
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Engine Lubrication System
Oil pressure check
Engine rpmApproximate discharge pressure
kPa (bar, kg/cm2, psi)
Idle speed More than 78 (0.78, 0.8, 11)
3,000 294 - 392 (2.94 - 3.92, 3.0 - 4.0, 43 - 57)
Oil pump
Unit: mm (in)
Gear side clearance Less than 0.13 (0.0051)
Gear backlash Less than 0.43 (0.0169)
Oil pump bushing clearance Less than 0.15 (0.0059)
Oil pump bushing inside diameter 13.012 - 13.098
(0.5123 - 0.5157)
Drive gear shaft outside diameter 12.974 - 12.992
(0.5108 - 0.5115)
Engine Cooling System
Thermostat
Valve opening temperature ÉC (ÉF)88 (190)
Max. Valve lift mm/ÉC (in/ÉF) 8/100
(0.315/212)
Radiator
Unit: kPa (bar, kg/cm2, psi)
Cap relief pressure 78-98
(0.78 - 0.98, 0.8 - 1.0, 11 - 14)
Leakage test pressure 157 (1.57, 1.6, 23)
SERVICE DATA AND SPECIFICATIONS (SDS)TD27Ti
LC-34
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