check engine NISSAN TERRANO 2004 Service Manual PDF

Oil Pressure Check
WARNING:
IBe careful not to burn yourself, as the engine and oil may
be hot.
I Oil pressure check should be done in ªNeutralº gear posi-
tion.
1. Check oil level.
2. Remove oil pressure switch.
3. Install pressure gauge.
4. Start engine and warm it up to normal operating temperature.
5. Check oil pressure with engine running under no-load.
Engine rpm Approximate 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)
If difference is extreme, check oil passage and oil pump for oil
leaks.
6. Install oil pressure switch.
Use proper liquid sealant. Oil pressure switch:
:10-13N ×m (1.0 - 1.3 kg-m, 87 - 113 in-lb)
SLC964
SLC003A
ENGINE LUBRICATION SYSTEMTD27Ti
LC-21
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Oil Pump
OIL PUMP INSPECTION
1. Inspect pump body, gears and drive shaft for wear and dam-age.
2. Using a feeler gauge and fuse wire, check the following clear- ances.Gear side clearance: Less than 0.13 mm (0.0051 in)
Gear backlash: Less than 0.43 mm (0.0169 in)
3. Measure inside diameter ªAº of bushing. A: 13.012 - 13.098 mm (0.5123 - 0.5157 in)
MLC128A
SLC966
SLC967
SLC968
ENGINE LUBRICATION SYSTEMTD27Ti
LC-22
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Oil Filter Bracket
q1O-ring
q
2Oil pump relief valve q
3Oil filter
q
4Oil filter bracket q
5Oil filter relief valve
q
6Protection shield
OIL PUMP RELIEF VALVE INSPECTION
1. Visually inspect components for wear and damage.
2. Coat relief valve with engine oil and check that it falls smoothly into the valve hole by its own weight.
If damaged, replace oil pump relief valve set.
OIL FILTER RELIEF VALVE INSPECTION
Inspect oil filter short valve for movement, cracks and breaks by
pushing the ball.
If damaged, replace oil filter bracket assembly.
NLC056
ENGINE LUBRICATION SYSTEMTD27Ti
LC-24
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Oil Cooler
q1Oil pressure switch
q
2Regulator valve q
3Oil cooler element
q
4Oil filter relief valve q
5O-ring
OIL COOLER RELIEF VALVE INSPECTION
Inspect oil cooler relief valve for movement, cracks and breaks by
pushing the ball.
If damaged, replace oil cooler relief valve set.
REGULATOR VALVE INSPECTION
1. Visually inspect components for wear and damage.
2. Coat regulator valve with engine oil and check that it falls
smoothly into the valve hole by its own weight.
If damaged, replace regulator valve set.
YLC067
ENGINE LUBRICATION SYSTEMTD27Ti
LC-25
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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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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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