Mitsubishi Galant

1990 — 2001 of release

Repair and car operation

Mitsubishi Galant
+ Identification numbers of the car
+ Governing bodies
+ Settings and routine maintenance
+ Engine
- Cooling and heating systems
   Antifreeze - general information
   Check of serviceability of functioning and thermostat
   Check of a condition of the fan of system of cooling
   Removal and installation of a radiator of system of cooling
   Check of a condition of the water pump
   Removal and installation of the water pump
   Check of serviceability of functioning and replacement of the block of the sensor of a measuring instrument of temperature of cooling liquid
   Replacement of the electromotor of a drive of the fan of a heater
   Removal and installation of the heat exchanger of a heater
   Check of serviceability of functioning and service of systems of heating and air conditioning
   Removal and installation of assembly of the control panel by functioning of a heater and air conditioner, adjustment of driving cables
+ Power supply system and release
+ engine Electric equipment
+ Control systems of the engine
+ Manual transmission
+ Coupling and transmission line
+ Brake system
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment

Cooling and heating systems

General information

System of cooling of the engine

All models of cars considered in the real Management are equipped with system of cooling of the engine working at superfluous pressure with thermostatic management of circulation of working liquid. The water pump of rotor type is fixed on the block of the engine and provides pumping of cooling liquid through an okhladitelny path of the last (a detail of installation of the water pump see in the Section Removal and installation of the water pump). The stream of liquid washes regions of an arrangement of each of cylinders in the block then goes to a back part of the engine. Laid in molding of the block and a head of cylinders okhladitelny channels provide intensive cooling of inlet and final ports, areas of installation of spark plugs and directing plugs of final valves.

The Voskozapolnenny thermostat supervises working temperature of the engine in the course of its warming up. The first minutes after start of the cold engine the thermostat remains closed, preventing thereby circulation of cooling liquid through a radiator. In process of approach of temperature of the engine to normal working value, the thermostat valve gradually opens, connecting to a cooling contour a radiator providing the maximum intensity of a heat-conducting path from a working body (cooling liquid).

The system of cooling has a tight design and is densely closed by a cover of the radiator, capable to maintain a certain superfluous pressure that provides increase of a boiling point of cooling liquid and, respectively, efficiency of a heat-conducting path through a radiator. At excess by internal pressure in system of some certain value, the podpruzhinenny plate of the radiator of a safety valve built in in a cover rises over the saddle, providing an overflowing of excess of cooling liquid on a connecting (perelivny) tube in a broad tank. In process of system cooling liquid automatically comes back from a tank to a radiator.

Dolivaniye of cooling liquid in system is made through a mouth of a broad tank (see. Head of Control and routine maintenance) which at the same time acts also as a receiver accumulating in forced out from a radiator excess of liquid.

In view of the listed features of a design, such system of cooling received the name closed as in it any functional losses of a working body are excluded.

Heating system

The main components of system of heating of salon are the electric fan and the heat exchanger placed in a box-shaped casing of a heater, fixed under the car dashboard. The heat exchanger is connected by means of rubber hoses to system of cooling of the engine. The control unit is built in by functioning of the heater/conditioner of air in the car dashboard. The cooling liquid warmed up in the engine circulates via the heater heat exchanger, giving the to air warmly filling a casing. At inclusion of heating of salon there is an opening of a lamellar zaslonka therefore the internal volume of a casing of a heater incorporates to salon volume. At turning on of the fan the krylchatka of the last starts to banish air submitted to salon via the heat exchanger, providing its intensive warming up.

Air central air

The structure of central air includes the condenser established ahead of a radiator close to the heat exchanger of a heater the evaporator, fixed on the engine block the compressor, and the filtering receiver dehumidifier (accumulator) equipped with the reduktsionny valve of a high pressure. All components are connected among themselves by refrigerator lines.

The fan banishes air arriving in salon through the heat exchanger of the evaporator working in a mode, the return to a mode of functioning of a radiator. The coolant pumped over through the heat exchanger begins to boil and, evaporating, selects at air surplus of heat. The temperature in salon thus decreases to demanded comfortable value (at the choice of the operator). The compressor supports coolant circulation in system, pumping over the warmed-up liquid via the condenser where it is cooled and arrives back in the evaporator.