Toyota Land Cruiser

FJ60, FJ62 and FJ80 1980-1997 of release

Repair and operation of the car

Toyota Land Cruiser
+ 1. Maintenance instruction
+ 2. Maintenance
+ 3. Engines
- 4. Cooling systems, heating
   4.1. Technical characteristics
   4.2. Antifreeze
   4.3. Thermostat
   4.4. Krylchatka of the fan and hydraulic clutch
   4.5. Radiator and broad tank
   4.6. Oil cooler
   4.7. Cooling system pump
   4.8. Liquid temperature sensor
   4.9. Electric motor and chain of the fan of a heater
   4.10. Heater radiator
   + 4.11. Control panel of a heater and conditioner
   4.12. Air conditioning system and heating
   4.13. Conditioner moisture separator
   4.14. Conditioner compressor
   4.15. Condenser
   4.16. Evaporator and broad valve
+ 5. Fuel and exhaust systems
+ 6. System of decrease in toxicity
+ 7. Transmission
+ 8. Brake system
+ 9. Suspension brackets and steering
+ 10. Body
+ 11. Electric equipment
+ 12. Electrical circuitries


4. Cooling systems, heating


Cooling system of engines

1. Gate case
2. To a radiator
3. Final branch pipe
4. To a radiator
5. Perepuskna branch pipe
6. Pump
7. From a radiator
8. Inlet branch pipe
9. From a heater
10. To a heater

The cooling system is thermostatically controlled, elevated pressure

The pump of cooling liquid centrifugal, the thermostat with the extending working body. After warming up of the engine up to the normal working temperature the thermostat opens therefore liquid comes to a radiator in which it is cooled and again the engine arrives. The cooling system is connected with the atmosphere a radiator stopper in which there is a control valve. Such design provides increase in a boiling point of liquid and efficiency of cooling of liquid in a radiator. If pressure in the cooling system exceeds the level at which the sprung control valve of a stopper of a radiator works, then under the influence of pressure the valve rises from a saddle and a part of liquid flows through a perepuskny pipe in an additional broad tank with cooling liquid. When cooling system excess of liquid flows down back in a radiator.

The tank, supports liquid level in system and at the same time is the tank for reception of superheated liquid. The cooling system of this kind is called closed as the liquid following via the stopper valve remains for further use.

System of heating

Heating are a part of the system the fan and a radiator mounted in the uniform case under the right part of the forward panel of a body, hoses of a supply and removal of cooling liquid from the cooling system of the engine and the control panel of heating / cooling of air in salon brought to the forward panel of a body. The cooling liquid heated from the engine proceeds through a heater radiator. The mode of heating is set by opening of the gate therefore the case of a heater is reported with space of salon. The switch on the control panel provides management of operation of the fan which forces an air stream through a radiator.

Air conditioning system

Air conditioning system consists of the condenser mounted before a radiator, the evaporator installed near a radiator of a heater, the compressor mounted on the engine, a moisture separator with the reducing valve of high pressure, the hoses and pipelines connecting all specified units.

The fan directs an air stream from salon to a radiator of the evaporator on which there is a return of heat from air to coolant. In a radiator of the evaporator of coolant boils with production of steam of low pressure, providing also selection of heat. The compressor provides circulation of heated coolant, keeping its elevated pressure, from the evaporator in the condenser where there is a coolant cooling, and back in the evaporator.