Тойота РАВ4-Toyota RAV4
1. Car operation
2. Maintenance service
3. Engines
4. Cooling and air-conditioning systems
   The general data
   Specifications
   Service and repair of system of cooling
      The thermostat
      The radiator fan
      Radiator and broad tank
      The water pump
      The gauge of the index of temperature of a cooling liquid
      Thermoswitch of the fan of a radiator
      The electric motor of the fan of a heater
      Knot of management of heating and air conditioning systems
      Heater radiator
   Check and service of a central air of air
5. Fuel system and system of release of the fulfilled gases
6. Ignition system
7. The monitoring system and decrease in toxicity of the fulfilled gases
8. Coupling
9. A transmission
10. A kardannyj shaft and shaft of a drive of driving wheels
11. Brake system
12. A suspension bracket
13. A steering and a running gear
14. A body
15. An electric equipment
Electric equipment schemes


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Toyota RAV4>> Cooling and air-conditioning systems>> Service and repair of system of cooling>> The water pump
       PREVENTIONS
Removal of the water pump make on the cold engine.
Do not suppose hit of a cooling liquid on clothes and a paint and varnish covering of a body. Otherwise wash out a surface a water considerable quantity.
Collect and utilise the merged cooling liquid.

Check of the water pump
The faulty water pump can become the reason of serious damage of the engine.
Get the engine and warm up to working temperature. At engine work compress the top hose of a radiator. If the water pump works normally, in a hose the pressure created by the pump will be felt.

       THE PREVENTION
In an operating time of the engine do not bring a hand too close to the fan and be far away from a plane of rotation of the fan


Fig. 4.12. An arrangement of an aperture for a drain of a cooling liquid from the case of the water pump


The water pump has a drain aperture for a drain of a cooling liquid from the pump case at damage of a sealing ring. The aperture is located under shaft of a drive of the pump from outside a pulley (fig. 4.12). If about an aperture there is a grey touch from the dried up cooling liquid is a normal phenomenon. If there are dark brown stains, means it is necessary to make replacement or pump repair.
For check of deterioration of bearings of the pump shake a pump pulley. If is available люфт, it is necessary to replace or repair the pump.
Replacement of the water pump by cars of release till 2001
Switch off ignition and disconnect a wire of "weight" from the storage battery.
Merge cooling liquid.
Remove the gear belt directing and tension rollers.

Fig. 4.13. An arrangement of a bolt of fastening of an adjusting support of the generator


Turn out a bolt and remove an adjusting support of the generator (fig. 4.13).
On cars with a central air turn out bolts of fastening of the compressor of the conditioner. Move the conditioner compressor together with the wires attached to it and tubes aside and a soft wire fix it on a body.

       THE PREVENTION
Do not open a central air contour.

Disconnect the bottom hose from a radiator.

Fig. 4.14. The water pump on cars of release till 2001: 1 – a thermostat casing; 2 – a sealing ring; 3 – the thermostat; 4 – an adjusting support of the generator; 5 – the water pump; 6 – a lining; 7 – a cover of the water pump; 8 – a directing roller of a gear belt; 9 – a spring; 10 – a tension roller of a gear belt; 11 – sealing rings; 12 – a bypass pipe of system of cooling; 13 – a lining


Turn out bolts of fastening of the water pump, thus mark position of bolts as they have different length. Remove the pump and a lining (fig. 4.14). If the pump does not act in film manually, bring down it киянкой.

Fig. 4.15. Отворачивание nuts of fastening of a pipe of a heater to the water pump


Disconnect from the pump a bypass pipe of system of cooling, then turn away 2 nuts and disconnect a pipe of a heater from the pump (fig. 4.15). Uncover the water pump.
Clear привалочные surfaces of the pump of the rests of hermetic, a lining and sealing rings.
Establish new sealing rings between a cover of the pump and the block of cylinders. Establish a new lining under a heater pipe.

Fig. 4.16. An arrangement of bolts of fastening of the water pump which are tightened a first stage on cars of release till 2001


Fig. 4.17. Sequence of a tightening of other bolts of fastening of the water pump on cars of release till 2001


Establish the pump with a new lining and fix bolts, first of all having tightened the bolts shown in drawing 4.16, then in the sequence shown in drawing 4.17, tighten other bolts.
The further installation make in sequence, return to removal.
Fill in cooling liquid.
Get the engine and be convinced of absence of leaks.
Replacement of the water pump by cars of release since 2001
Switch off ignition and disconnect a wire of "weight" from the storage battery.
Merge cooling liquid.
Loosen the bolts of fastening of a pulley of the water pump, then remove driving a belt.
Release from a clip a plait of wires and take him aside from the water pump.

Fig. 4.18. An arrangement of bolts of fastening of the water pump on cars of release since 2001


Turn out bolts and remove the water pump (fig. 4.18).
Clear привалочные surfaces of the pump of the hermetic and lining rests.

Fig. 4.19. A place of drawing of hermetic RTV on привалочной surfaces of the water pump


Put the platen of hermetic RTV in diameter of 3 mm on a groove outer side on привалочной to a surface of the water pump (fig. 4.19).
Establish the water pump and fix its bolts.
The further installation make in sequence, return to removal.
Fill in cooling liquid.
Get the engine and be convinced of absence of leaks.