2004 NISSAN TERRANO Service Repair Manual

OIL FILTER
The oil filter is an element type. Refer to ªChanging Oil Filterº in MA
section.
Oil Cooler
REMOVAL AND INSTALLATION
1. Drain engine oil and coolant.Remove catalyst and turbocharger. Refer to ªCATALYST AND
TURBOCHARGERº in EM section.
2. Remove bolts A to C then remove oil cooler assembly.
I Do not remove ªDº nuts when removing oil cooler assem-
bly.
Bolt length: A: 20 mm (0.79 in)
B: 45 mm (1.77 in)
C: 65 mm (2.56 in)
3. Installation is in reverse order of removal.
I Do not spill coolant on the drive belt.
INSPECTION
1. Check oil cooler for cracks.
2. Check oil cooler for clogging by blowing through coolant inlet.
If necessary, replace oil cooler assembly.
YLC030
JLC381B
ENGINE LUBRICATION SYSTEMZD
Oil Jet (Cont'd)
LC-8
http://vnx.su/

Cooling Circuit
YLC064
ENGINE COOLING SYSTEMZD
LC-9
http://vnx.su/

System Check
WARNING:
Never remove the radiator cap when the engine is hot. Serious
burns could occur from high pressure coolant escaping from
the radiator.
Wrap a thick cloth around the cap. Slowly turn it a quarter turn
to allow built-up pressure to escape. Carefully remove the cap
by turning it all the way.
CHECKING COOLING SYSTEM HOSES
Check hoses for the following:
IImproper attachment
I Leaks
I Cracks
I Damage
I Chafing
I Deterioration
CHECKING COOLING SYSTEM FOR LEAKS
To check for leakage, apply pressure to the cooling system with a
tester.
Testing pressure:157 kPa (1.57 bar, 1.6 kg/cm
2, 23 psi)
CAUTION:
Higher pressure than specified may cause radiator damage.
CHECKING RADIATOR CAP
To check radiator cap, apply pressure to cap with a tester. Radiator cap relief pressure:Standard78-98kPa
(0.78 - 0.98 bar, 0.8 - 1.0 kg/cm
2, 11 - 14 psi)
Pull the negative pressure valve to open it.
Check that it closes completely when released.
SLC134B
SLC135B
SMA967B
ENGINE COOLING SYSTEMZD
LC-10
http://vnx.su/

Water Pump
CAUTION:
IWhen removing water pump assembly, be careful not to
get 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.
Refer to MA section.
REMOVAL AND INSTALLATION
1. Drain coolant from radiator and cylinder block.
Refer to MA section (ªChanging Engine Coolantº, ªENGINE
MAINTENANCEº).
2. Remove radiator upper hose.
3. Remove radiator shroud.
4. Remove cooling fan.
5. Remove drive belt. Refer to MA section, ªChecking Drive Beltº.
6. Remove insulator.
7. Remove vacuum pipe.
8. Remove TDC sensor. Refer to EM section, ªTDC sensor removal and installationº in ªTIMING GEARº.
9. Remove fan coupling with water pump.
10. Install in the reverse order of removal.
JLC373B
ENGINE COOLING SYSTEMZD
LC-11
http://vnx.su/

INSPECTION
1. Check for badly rusted or corroded body assembly and vane.
2. Check for rough operation due to excessive end play.
CAUTION:
Do not disassemble water pump coupling assembly.
Thermostat
SLC374B
YLC032
ENGINE COOLING SYSTEMZD
Water Pump (Cont'd)LC-12
http://vnx.su/

REMOVAL AND INSTALLATION
1. Drain engine coolant. Refer to MA section, ªChanging EngineCoolantº.
2. Remove left side battery. (If so equipped)
3. Remove radiator upper hose.
4. Remove radiator shroud.
5. Remove intake air duct, inlet pipe.
6. Remove harness and connectors.
7. Install in reverse order of removal.
I After installation, run engine for a few minutes and check
for leaks.
I Be careful not to spill coolant in engine compartment. Use
a rag to absorb coolant.
INSPECTION
1. Check valve seating condition at ordinary temperatures. It
should seat tightly.
2. Check valve opening temperature and maximum valve lift.
Valve opening temperature ÉC (ÉF) 82 (180)
Maximum valve lift mm/ÉC (in/ÉF) 10/95 (0.39/203)
3. Then check if valve closes at 5ÉC (9ÉF) below valve opening
temperature.
Water Outlet
INSPECTION
Visual inspection for water leaks. If there is leakage, replace gas-
ket.
JLC384B
SLC695A
YLC033
ENGINE COOLING SYSTEMZD
Thermostat (Cont'd)
LC-13
http://vnx.su/

Radiator
YLC065
ENGINE COOLING SYSTEMZD
LC-14
http://vnx.su/

REMOVAL AND INSTALLATION
1. Remove under cover.
2. Drain engine coolant. Refer to MA section, ªChanging EngineCoolantº.
3. Remove air cleaner case, air duct and resonator.
4. Remove battery (right side).
5. Remove radiator shroud (lower).
6. Remove radiator shroud (front).
7. Disconnect radiator hose (upper and lower).
8. Disconnect reservoir tank hose.
9. Disconnect A/T oil cooler hose (Only A/T models).
10. Remove radiator.
11. After repairing or replacing radiator, install all removed parts in reverse order of removal.
Cooling Fan (Crankshaft driven)
DISASSEMBLY AND INSTALLATION
IDo not release the drive belt tension by removing the fan/water
pump pulley.
I Fan coupling cannot be disassembled and should be replaced
as a unit. If front mark q
Fis present, install fan so that side
marked q
Ffaces the front.
I Proper alignment of these components is essential. Improper
alignment will cause them to wobble and may eventually cause
the fan to separate from the water pump causing extensive
damage.
JLC379B
ENGINE COOLING SYSTEMZD
Radiator (Cont'd)
LC-15
http://vnx.su/