TOYOTA LAND CRUISER 1998 Factory Repair Manual
Page 751 of 3115
CO0J1-02
B04474A/T Oil Cooler Hose
B04475
- COOLINGRADIATOR
CO-17
1778 Author: Date:
2004 LAND CRUISER (RM1071U)
REMOVAL
1. REMOVE ENGINE UNDER COVER NO.1
2. DRAIN ENGINE COOLANT
3. DISCONNECT RADIATOR UPPER HOSE FROM RA-
DIATOR
4. DISCONNECT RADIATOR LOWER HOSE FROM RA-
DIATOR
5. DISCONNECT A/T OIL COOLER HOSES FROM RA-
DIATOR
6. REMOVE RADIATOR RESERVOIR
(a) Disconnect the clamp on the wire from the radiator.
(b) Disconnect the resorvoir hose from the radiator.
(c) Remove the 2 bolts, resorvoir and grommet.
7. REMOVE RADIATOR ASSEMBLY
(a) Remove the 2 nuts, and disconnect the 2 clamps on the
A/C discharge tube from the bracket.
(b) Remove the 2 bolts, and disconnect the 2 brackets on the
wire from the radiator.
(c) Disconnect the A/T oil cooler hoses from the clamp on the
fan shroud.
(d) Loosen the fan pulley mounting nuts holding the fluid cou-
pling to the fan bracket.
(e) Remove generator drive belt. (See page CH-7)
(f) Remove the 3 bolts holding the fan shroud to the radiator.
(g) Remove the 4 fan pulley mounting nuts.
(h) Pull out the fan with fluid coupling, fan pulley and fan
shroud.
(i) Remove the 2 nuts.
Page 752 of 3115
B08320
B08321
CO-18
- COOLINGRADIATOR
1779 Author: Date:
2004 LAND CRUISER (RM1071U)
(j) Remove the 2 bolts.
(k) Lift out the radiator assembly.
8. REMOVE RADIATOR SIDE SUPPORTS FROM RADIA-
TOR
(a) Remove the 4 nuts and 2 brackets.
(b) Remove the 8 nuts and 2 side supports.
Page 753 of 3115
CO0IU-01
B04464
Water InletThermostat
Gasket
19 (195, 14)
N´m (kgf´cm, ft´lbf) : Specified torque
Non-reusable part
CO-10
- COOLINGTHERMOSTAT
1771 Author: Date:
2004 LAND CRUISER (RM1071U)
THERMOSTAT
COMPONENTS
Page 754 of 3115
CO0IW-01
P08849
CO0929
CO0949
Valve Lift CO-12
- COOLINGTHERMOSTAT
1773 Author: Date:
2004 LAND CRUISER (RM1071U)
INSPECTION
INSPECT THERMOSTAT
HINT:
The thermostat is numbered with the valve opening tempera-
ture.
(a) Immerse the thermostat in water and gradually heat the
water.
(b) Check the valve opening temperature.
Valve opening temperature: 80 - 84°C (176 - 183°F)
If the valve opening temperature is not as specified, replace the
thermostat.
(c) Check the valve lift.
Valve lift: 10 mm (0.39 in.) or more at 95°C (203°F)
If the valve lift is not as specified, replace the thermostat.
(d) Check that the valve is fully closed when the thermostat
is at low temperatures (below 40°C (104°F)).
If not closed, replace the thermostat.
Page 755 of 3115
CO0IX-02
B04466
Jiggle Valve30°30°
- COOLINGTHERMOSTAT
CO-13
1774 Author: Date:
2004 LAND CRUISER (RM1071U)
INSTALLATION
1. PLACE THERMOSTAT IN WATER INLET HOUSING
(a) Install a new gasket to the thermostat.
(b) Insert the thermostat into the water inlet housing with the
jiggle valve facing straight upward.
HINT:
The jiggle valve may be set within 30° of either side of the pre-
scribed position.
2. INSTALL WATER INLET
Install the water inlet with the 3 nuts.
Torque: 19 N´m (195 kgf´cm, 14 ft´lbf)
3. FILL WITH ENGINE COOLANT
4. START ENGINE AND CHECK FOR COOLANT LEAKS
5. RECHECK ENGINE COOLANT LEVEL
Page 756 of 3115
CO0IV-01
B04465
- COOLINGTHERMOSTAT
CO-1 1
1772 Author: Date:
2004 LAND CRUISER (RM1071U)
REMOVAL
HINT:
Removal of the thermostat would have an adverse effect, caus-
ing a lowering of cooling efficiency. Do not remove the thermo-
stat, even if the engine tends to overheat.
1. DRAIN ENGINE COOLANT
2. DISCONNECT WATER INLET FROM WATER INLET
HOUSING
Remove the 3 nuts and disconnect the water inlet from the wa-
ter inlet housing.
3. REMOVE THERMOSTAT
(a) Remove the thermostat.
(b) Remove the gasket from the thermostat.
Page 757 of 3115
CO0IQ-06
A09750
P/S Air HoseRadiator
Reservoir Tank
Intake Air
Connector
Radiator Assembly
EVAP HoseV-Bank Cover
Engine Under Cover No.1
N´m (kgf´cm, ft´lbf) : Specified torque Generator
Drive Belt
A/C CompressorA/C Compressor
Connector
A/T Oil Cooler Hose
Fan with
Fluid Coupling
Fan Pulley
49 (500, 36)
5.0 (50, 43 in.´lbf)
18 (185, 13)
Air Hose
x 8Fan Shroud Fuel Return
Hose
20 (200, 15)
A/T Oil Cooler
Hose
A/C Discharge
Tube
Clamp
Bracket WireClamp
Clamp
Lower Radiator Hose
Bracket
- COOLINGWATER PUMP
CO-3
1764 Author: Date:
2004 LAND CRUISER (RM1071U)
WATER PUMP
COMPONENTS
Page 758 of 3115
B04470
RH No.3 Timing Belt Cover
LH No.3 Timing Belt CoverNo.2 Timing Belt Cover
Camshaft Position
Sensor Connector
Engine Wire
Oil Cooler Pipe
Timing Belt
Fan Bracket Drive Belt Timing Pulley
Timing Belt Tensioner Dust Boot
N´m (kgf´cm, ft´lbf) : Specified torqueCover Plate
7.5 (80, 66 in.´lbf)
16 (160, 12)
39 (400,29)
245 (2,500, 181)
32 (330, 24)
16 (160, 12)
7.5 (80, 66 in.´lbf)
Water Bypass
Hose
CO-4
- COOLINGWATER PUMP
1765 Author: Date:
2004 LAND CRUISER (RM1071U)
Page 759 of 3115
B04471
Generator Wire
Generator Connector
Wire Clamp
Generator
Crankshaft PulleyDrive Belt Tensioner
No.1 Timing Belt Cover
Timing Belt
Timing Belt Guide
(Crankshaft Angle Sensor Plate)No.2 Idler Pulley
Timing Belt Cover SpacerGasket
N´m (kgf´cm, ft´lbf) : Specified torque
Non-reusable partWater Inlet Housing
Assembly
Water Pump O-Ring
Gasket O-Ring
39 (400, 29)
34.5 (350, 25)
18 (185, 13)
21 (215, 15)
- COOLINGWATER PUMP
CO-5
1766 Author: Date:
2004 LAND CRUISER (RM1071U)
Page 760 of 3115
CO0IS-01
B04067Air HoleWa t e r
Hole
- COOLINGWATER PUMP
CO-7
1768 Author: Date:
2004 LAND CRUISER (RM1071U)
INSPECTION
1. INSPECT WATER PUMP
(a) Visually check the air hole and water hole for coolant leak-
age.
If leakage is found, replace the water pump and timing belt.
(b) Turn the pulley, and check that the water pump bearing
moves smoothly and quietly.
If necessary, replace the water pump.
2. INSPECT TIMING BELT COMPONENTS
(See page EM-20)