1996 TOYOTA LAND CRUISER Ect

CO112−01
CO−4
−
COOLING WATER PUMP
1996 LAND CRUISER (RM451U)
REMOVAL
1. DRAIN ENGINE COOLANT
2. DISCONNECT NO.3 WATER BYPASS HOSE
3. DISCONNECT RADIATOR INLET HOSE
4. REMOVE DRIVE BELTS, FAN WITH FLUID COU- PLING, WATER PUMP PULLEY AND FAN SHROUD
(a) Stretch the belts and loosen the water pump pulley mounting nuts.
(b) Loosen the lock, pivot and adjusting bolts of the genera- tor, and remove the drive belts.
(c) Disconnect the oil cooler hose from the clamp on the fan shroud.
(d) Remove the 2 bolts holding the fan shroud to the radiator.
(e) Remove the 4 water pump pulley mounting nuts.
(f) Pull out the fan with fluid coupling, water pump pulley and
fan shroud.
(g) Remove the fan from the fluid coupling.
5. REMOVE WATER PUMP
Remove the 4 bolts, 2 nuts, water pump and gasket.
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CO113−04
−
COOLING WATER PUMP
CO−5
1996 LAND CRUISER (RM451U)
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.
(b) Turn the pulley seat and check that the water pump bear- ing moves smoothly and quietly.
If necessary, replace the water pump.
2. INSPECT FLUID COUPLING
Check the fluid coupling for damage and silicon oil leakage.
If necessary, replace the fluid coupling.
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CO114−02
CO−6
−
COOLING WATER PUMP
1996 LAND CRUISER (RM451U)
INSTALLATION
1. INSTALL WATER PUMP
Install a new gasket and the water pump with the 4 bolts and 2
nuts. Torque: 21 N·m (210 kgf·cm, 15 ft·lbf)
2. INSTALL WATER PUMP PULLEY, FAN SHROUD, FAN WITH FLUID COUPLING AND DRIVE BELTS
(a) Install fan to the fluid coupling.
(b) Place the fan with fluid coupling, water pump pulley and fan shroud in position.
(c) Temporarily install the fan pulley mounting nuts.
(d) Install the fan shroud with the 2 bolts. Torque: 5.0 N·m (50 kgf·cm, 43 in.·lbf)
(e) Connect the oil cooler hose to the clamp on the fan
shroud.
(f) Install the drive belts with the adjusting bolt and pivot bolt.
(g) Stretch the belts tight and tighten the 4 water pump pulley mounting nuts.
(h) Adjust the drive belts (See page CH−2 ).
3. CONNECT NO.3 WATER BYPASS HOSE
4. CONNECT RADIATOR INLET HOSE
5. FILL RADIATOR WITH ENGINE COOLANT
6. START ENGINE AND CHECK FOR LEAKS
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CO115−01
CO−8
−
COOLING THERMOSTAT
1996 LAND CRUISER (RM451U)
REMOVAL
HINT:
Removal of the thermostat would have an adverse effect, causing a lowering of cooling efficiency. Do not
remove the thermostat, even if the engine tends to overheat.
1. DRAIN ENGINE COOLANT
2. REMOVE WATER INLET AND THERMOSTAT
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CO0IW−06
−
COOLING THERMOSTAT
CO−9
1996 LAND CRUISER (RM451U)
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.
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CO0IZ−03
Z02362
CO−12
−
COOLING RADIATOR
1996 LAND CRUISER (RM451U)
ON−VEHICLE INSPECTION
1. REMOVE RADIATOR TANK CAP
CAUTION:
To avoid the danger of being burned, do not remove the ra-
diator cap while the engine and radiator are still hot, as fluid
and steam can be blown out under pressure.
2. INSPECT RADIATOR CAP
NOTICE:
If the radiator cap has contaminations, always rinse it with
water. Before using a radiator cap tester, wet the relief
valve and pressure valve with coolant or water.
Using a radiator cap tester, pump the tester and measure the
relief valve opening pressure. Standard opening pressure:
74 − 103 kPa
(0.75 − 1.05 kgf/cm
2, 10.7 − 14.9 psi)
Minimum opening pressure:
59 kPa (0.6 kgf/cm
2, 8.5 psi)
HINT:
Use the tester’s maximum reading as the opening pressure.
If the opening pressure is less than minimum, replace the radia-
tor cap.
3. INSPECT COOLING SYSTEM FOR LEAKS
(a) Fill the radiator with coolant and attach a radiator cap tes-
ter.
(b) Warm up the engine.
(c) Pump it to 118 kPa (1.2 kgf/cm
2, 17.1 psi), and check that
the pressure does not drop.
If the pressure drops, check the hoses, radiator or water pump
for leaks. If no external leaks are found, check the heater core,
cylinder block and head.
4. REINSTALL RADIATOR CAP
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CO117−02
CO−14
−
COOLING RADIATOR
1996 LAND CRUISER (RM451U)
REMOVAL
1. DRAIN ENGINE COOLANT
2. REMOVE BATTERY AND BATTERY TRAY
(a) Disconnect the battery cables.
(b) Remove the nuts, hold −down clamp and battery.
(c) Remove the bolt and disconnect the ground strap.
(d) Remove the 5 bolts and battery tray.
3. REMOVE RADIATOR GRILLE
Remove the 5 screws, clip and radiator grille.
4. DISCONNECT NO.3 WATER BYPASS HOSE
5. DISCONNECT RADIATOR INLET HOSE
6. DISCONNECT RADIATOR RESERVOIR HOSE
7. REMOVE RADIATOR
(a) Stretch the belts and loosen the water pump pulley mounting nuts.
(b) Loosen the lock, pivot and adjusting bolts of the genera- tor, and remove the drive belts.
(c) Disconnect the oil cooler hose from the clamp on the fan shroud.
(d) Remove the 2 bolts holding the fan shroud to the radiator.
(e) Remove the 4 water pump pulley mounting nuts.
(f) Pull out the fan with fluid coupling, water pump pulley and
fan shroud.
8. DISCONNECT A/T OIL COOLER HOSES
9. DISCONNECT RADIATOR OUTLET HOSE
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CO118−01
CO−16
−
COOLING RADIATOR
1996 LAND CRUISER (RM451U)
INSTALLATION
1. INSTALL RADIATOR
(a) Install the 2 radiator brackets with the 4 nuts. Torque: 12 N·m (120 kgf·cm, 9 ft·lbf)
(b) Install the radiator with the 2 bolts and 2 nuts. Torque:
Bolt: 18 N·m (185 kgf·cm, 13 ft·lbf)
Nut: 12 N·m (120 kgf·cm, 9 ft·lbf)
2. CONNECT A/T OIL COOLER HOSES
3. CONNECT RADIATOR OUTLET HOSE
4. INSTALL WATER PUMP PULLEY, FAN SHROUD, FAN WITH FLUID COUPLING AND DRIVE BELTS
(a) Place the fan with fluid coupling, water pump pulley and fan shroud in position.
(b) Temporarily install the fan pulley mounting nuts.
(c) Install the fan shroud with the 2 bolts. Torque: 5.0 N·m (50 kgf·cm, 43 in.·lbf)
(d) Connect the oil cooler hose to the clamp on the fan
shroud.
(e) Install the drive belts with the adjusting bolt and pivot bolt.
(f) Stretch the belts tight and tighten the 4 water pump pulley mounting nuts.
(g) Adjust the drive belts (See page CH−2 ).
5. CONNECT RADIATOR RESERVOIR HOSE
6. CONNECT RADIATOR INLET HOSE
7. CONNECT NO.3 WATER BYPASS HOSE
8. INSTALL RADIATOR GRILLE
Install the radiator grille with the 5 screws and clip.
9. INSTALL BATTERY AND BATTERY TRAY
(a) Install the battery tray with the 5 bolts.
(b) Connect the ground strap with the bolt.
(c) Install the battery with the hold−down clamp and nuts.
(d) Connect the battery cables.
10. FILL RADIATOR WITH ENGINE COOLANT
11. START ENGINE AND CHECK FOR LEAKS
12. CHECK AUTOMATIC TRANSMISSION FLUID LEVEL
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