TOYOTA RAV4 1996 Service Repair Manual

N00918
CO−6
− COOLINGWATER PUMP
1996 RAV4 (RM447U)
8. REMOVE WATER PUMP FROM WATER PUMP COVER
Remove the 3 bolts, water pump and gasket.

CO0BH−02
CO0877
− COOLINGWATER PUMP
CO−7
1996 RAV4 (RM447U)
INSPECTION
INSPECT WATER PUMP
(a) Visually check the drain hole for coolant leakage.
If leakage is found, replace the water pump.
If engine coolant has leaked onto the timing belt, replace the
timing belt.
(b) Turn the pulley, and check that the water pump bearing
moves smoothly and quietly.
If necessary, replace the water pump.

CO0BI−03
P13480
New O−Ring
New Gasket
P15547
New O−Ring
P15464
Connect
Z16489
3
1
2 CO−8
− COOLINGWATER PUMP
1996 RAV4 (RM447U)
INSTALLATION
1. INSTALL WATER PUMP TO WATER PUMP COVER
Install a new gasket and the water pump with the 3 bolts.
Torque: 8.8 N·m (90 kgf·cm, 78 in.·lbf)
2. INSTALL WATER PUMP AND WATER PUMP COVER
ASSEMBLY
(a) Install new O−ring and gasket to water pump cover.
(b) Install a new O−ring to the water bypass pipe.
(c) Apply soapy water to the O−ring on the water bypass
pipe.
(d) Connect the water pump cover to the water bypass pipe.
Do not install the nuts yet.
(e) Install the water pump with the 3 bolts. Tighten the bolts
in the sequence shown.
Torque: 8.8 N·m (90 kgf·cm, 78 in.·lbf)
(f) Install the 2 nuts holding the water pump cover to the wa-
ter bypass pipe.
Torque: 9.3 N·m (95 kgf·cm, 82 in.·lbf)
3. INSTALL GENERATOR DRIVE BELT ADJUSTING BAR
(a) Install the adjusting bar with the bolt.
Torque: 27 N·m (275 kgf·cm, 20 ft·lbf)
(b) Connect the crankshaft position sensor connector clamp.
4. INSTALL NO.2 IDLER PULLEY AND TIMING BELT
TENSION SPRING
5. CONNECT LOWER RADIATOR HOSE
6. INSTALL TIMING BELT (See page EM−20)
7. FILL WITH ENGINE COOLANT
8. START ENGINE AND CHECK FOR COOLANT LEAKS
9. INSTALL RH ENGINE UNDER COVER

CO0BJ−01
S01641
Thermostat
 Gasket
Water InletOil Filter
N·m (kgf·cm, ft·lbf): Specified torque
 Non−reusable part
8.8 (90, 78 in.·lbf)
− COOLINGTHERMOSTAT
CO−9
1996 RAV4 (RM447U)
THERMOSTAT
COMPONENTS

CO0BK−01
S01348
CO−10
− COOLINGTHERMOSTAT
1996 RAV4 (RM447U)
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. REMOVE OIL FILTER (See page LU−2)
3. REMOVE WATER INLET AND THERMOSTAT
(a) Remove the 2 nuts, and disconnect the water inlet from
the water pump cover.
(b) Remove the thermostat.
(c) Remove the gasket from the thermostat.

CO0BL−03
P13560
P00436
CO1233
Valve Lift
− COOLINGTHERMOSTAT
CO−11
1996 RAV4 (RM447U)
INSPECTION
INSPECT THERMOSTAT
HINT:
The thermostat is numbered with the valve operating 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:
At 95°C (203°F): 8 mm (0.31 in.) or more
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.

CO0BM−02
P13611
Protrusion
Jiggle
Valve5° 5° CO−12
− COOLINGTHERMOSTAT
1996 RAV4 (RM447U)
INSTALLATION
1. PLACE THERMOSTAT IN WATER PUMP
(a) Install a new gasket to the thermostat.
(b) Align the jiggle valve of the thermostat with the protrusion
of the water inlet, and insert the thermostat in the water
inlet.
HINT:
The jiggle valve may be set within 5° of either side of the pre-
scribed position.
2. INSTALL WATER INLET AND THERMOSTAT
Install the water inlet and thermostat with the 2 nuts.
Torque: 8.8 N·m (90 kgf·cm, 78 in.·lbf)
3. INSTALL OIL FILTER (See page LU−2)
4. FILL WITH ENGINE COOLANT
5. START ENGINE AND CHECK FOR LEAKS
6. CHECK ENGINE OIL LEVEL

CO0BN−01
− COOLINGRADIATOR
CO−13
1996 RAV4 (RM447U)
RADIATOR
ON−VEHICLE CLEANING
Using water or a steam cleaner, remove any mud or dirt from the radiator core.
NOTICE:
If using a high pressure type cleaner, be careful not to deform the fins of the radiator core. (i.e. Main-
tain a distance between the cleaner nozzle and radiator core.)

CO0BO−02
Z00570
Radiator Cap Tester
Radiator Cap30° or More
S01265
Radiator Cap Tester CO−14
− COOLINGRADIATOR
1996 RAV4 (RM447U)
ON−VEHICLE INSPECTION
1. REMOVE RADIATOR 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.
When performing steps (a) and (b) below, keep the ra-
diator cap tester at an angle of over 30°above the hor-
izontal.
(a) Using a radiator cap tester, slowly pump the tester and
check that air is coming from the vacuum valve.
Pump speed:
1 push/(3 seconds or more)
NOTICE:
Push the pump at a constant speed.
If air is not coming from the vacuum valve, replace the radiator
cap.
(b) Pump the tester and measure the relief valve opening
pressure.
Pump speed:
1 push within 1 second
NOTICE:
This pump speed is for the first pump only (in order to close
the vacuum valve). After this, the pump speed can be re-
duced.
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 118kPa (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 cylinder head.
4. REINSTALL RADIATOR CAP

CO0BP−02
S01819
Lower Radiator
Hose
No.2 Cooling
Fan Connector
(w/ A/C)
Radiator
Assembly Upper Radiator
Support
ECT Switch
ConnectorRadiator
Upper Radiator
SupportNo.1 Cooling FanNo.2 Cooling Fan
(w/ A/C)
Radiator Cap
Upper Radiator Hose
Engine Wire
Radiator Reservoir Hose
A/T Oil Cooler Hose
 O−Ring
No.1 Cooling
Fan Connector Lower Radiator
Support Cooler Condenser
RH Engine
Under Cover
LH Engine
Under CoverLH Engine
Under Cover
 Non−reusable partM/TA/TDrain Plug
− COOLINGRADIATOR
CO−15
1996 RAV4 (RM447U)
COMPONENTS