1996 TOYOTA LAND CRUISER Drain coolant

AC3JL−01
−
AIR CONDITIONING COOLING UNIT
AC−23
1350
Author: Date:
1996 LAND CRUISER (RM451U)
COOLING UNIT
COMPONENTS
v
~+Packing
Engine Coolant
Temp. CutRelay
NCAmphfier------'>...,.J)
Thermistor
LowerUnitCase----"
+Non-reusable part
"JI'b,.;:y•.?~-----UpperUnitCase
c-----+Packing
Expansion Valve
~Gromet
o«'-----DrainHose
~~~paCking
A~,,~V~..~':'-'-"~--BlowerResistor'~N14361
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AC2QS−01
Z17942
Hose ”A”Hose ”B”
Z17943
Hose Clip
Heater
Radiator Pope Paint Mark
Water Hose Hose ”A”Upper
FR
RH Hose ”B”
RH
FR
Marking 45 ± 10° 45
°
10 °
N06494
AC−28
−
AIR CONDITIONING HEATER UNIT
1355
Author: Date:
1996 LAND CRUISER (RM451U)
HEATER UNIT
REMOVAL
1. REMOVE COOLING UNIT (See page AC−24)
2. DRAIN ENGINE COOLANT FROM RADIATOR
HINT:
It is not necessary to drain out all the coolant.
3. DISCONNECT WATER HOSES FROM HEATER RA- DIATOR PIPES
(a) Grip the claws of the hose clip with pliers and slide the clip
along the hose to a place where it does not clamp the
hose to the pipe.
(b) Disconnect the water hoses.
HINT:
Push the water hose onto the heater radiator pipe as far
as the ridge on the pipe.
Install the hose clip in a position, as shown in the illustra-
tion.
4. REMOVE PIPE GROMMETS
5. REMOVE INSTRUMENT PANEL SAFETY PAD (See page BO−76 )
6. REMOVE INSTRUMENT PANEL REINFORCEMENT
(See page BO−76 )
7. REMOVE HEATER UNIT
(a) Remove the 3 screws and defroster nozzle.(...~---------I I
I II II I
I II IIIv-
N02485
N18179N18181
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AC2RU−01
Z17944
Hose ”A”
Hose ”B”
Z19353
Hose Clip
Heater
Radiator
Pipe Paint
Water Hose Upper Upper
Fr RH
Marking Hose ”A”
Hose ”B”
45°
AC−48
−
AIR CONDITIONING WATER VALVE
1375
Author: Date:
1996 LAND CRUISER (RM451U)
WATER VALVE
REMOVAL
1. DRAIN ENGINE COOLANT FROM RADIATOR
HINT:
It is not necessary to drain out all the coolant.
2. DISCONNECT WATER VALVE CONTROL CABLE
3. DISCONNECT WATER HOSES FROM HEATER RA-
DIATOR PIPE AND WATER VALVE
(a) Grip the claws of the hose clip with pliers and slide the clip
along the hose to a place where it does not clamp the
hose to the pipe.
(b) Disconnect the water hoses.
HINT:
ATt the time of installation, refer to the following procedure.
Push the water hose onto the heater radiator pipe as far
as ridge on the pipe.
Install the hose clip in a position, as shown in the illustra-
tion.
4. REMOVE WIRE HARNESS PROTECTOR
5. REMOVE WATER VALVE
Remove the 2 bolts and water valve.
N02485N18180N18181
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CO0IP−07
CO−2
−
COOLING COOLANT
1996 LAND CRUISER (RM451U)
REPLACEMENT
REPLACE ENGINE COOLANT
(a) Remove the radiator cap.
CAUTION:
See step 2. (a) above.
(b) Drain the coolant from the radiator drain cock and engine drain plug (Engine drain plug at the left of engine block.).
(c) Close the drain plugs. Torque:Torque (Engine drain plug):
29 N·m (300 kgf·cm, 22 ft·lbf)
(d) Slowly fill the system with coolant.
Use a good brand of ethylene −glycol base coolant
and mix it according to the manufacturer’s direc-
tions.
Using coolant which includes more than 50 % ethyl-
ene−glycol (but not more than 70 %) is recom-
mended.
NOTICE:
Do not use an alcohol type coolant.The coolant should be
mixed with demineralized water or distilled water. Capacity:
w/ Front heater:
13.7 liters (14.4 US qts, 12.1 lmp. qts)
w/ Front and rear heaters:
14.7 liters (15.5 US qts, 12.9 lmp. qts)
(e) Reinstall the radiator cap.
(f) Warm up the engine and check for leaks.
(g) Recheck the coolant level and refill as necessary.
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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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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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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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−
EMISSION CONTROL EVAPORATIVE EMISSION (EVAP) CONTROL SYSTEM
EC−7
1996 LAND CRUISER (RM451U)
9. VISUALLY INSPECT CHARCOAL CANISTER
Look for cracks or damage.
10. INSPECT FOR CLOGGED FILTER AND STUCK VALVE
(a) Using low pressure compressed air (7.26 kPa, 74 gf/cm
2,
1.05 psi), blow into tank pipe and check that air flows with-
out resistance from the other pipes.
(b) While holding drain pipe closed, blow air (1.96 kPa, 20 gf/
cm
2, 0.28 psi) into purge pipe and check that air flow with-
out resistance from tank pipe.
If a problem is found, replace the charcoal canister.
11. CLEAN FILTER IN CANISTER
Clean the filter by blowing 294 kPa (3 kgf/cm
2, 43 psi) of com-
pressed air into tank pipe while holding purge pipe closed.
NOTICE:
Do not attempt to wash the canister.No activated carbon
should come out.
12. REINSTALL CAP TO CHARCOAL CANISTER
13. REINSTALL CHARCOAL CANISTER TO BRACKET Torque: 14 N·m (145 kgf·cm, 10 ft·lbf)
14. REINSTALL CHARCOAL CANISTER WITH BRACKET Torque: 18 N·m (185 kgf·cm, 13 ft·lbf)
15. DRAIN ENGINE COOLANT
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