Mazda 323

since 1985 release

Repair and operation of the car


Mazda 323

+ Introduction
+ Petrol engines
+ Engine lubrication system
+ Engine cooling system
+ System of ignition
+ Power supply system, carburetor, system of injection of fuel
- Diesel engine
   Principle of operation of the diesel engine
   Removal and installation of a gear belt / adjustment of the drive of the distributive mechanism
   System of preheat of the diesel engine
   Check of system of preheat
   Removal of air from a power supply system
   Check/replacement of the electromagnetic valve of interruption in supply of fuel
   Adjustment of the drive of gas
   Check/adjustment of speed of idling
   Removal and installation of nozzles
   Removal and installation of the vacuum pump
+ System of production of the fulfilled gases
+ Coupling
+ Manual transmission
+ Automatic transmission
+ Suspension bracket and system of steering
+ Brake system
+ Wheels and tires, body, coloring of the car, care of the car
+ System of electric equipment
+ Heater, system of lighting, devices
+ Governing bodies and methods of operation
+ Electric circuits

25215d41

System of preheat of the diesel engine

On the cold engine spontaneous ignition temperature due to only one compression is not reached therefore the engine needs preheat.

For this purpose in each combustion chamber the glow plug is screwed in. The candle consists of the case and the pressed thermal core. When giving tension the thermal winding in the core for several seconds heats up to temperature of +850 °C thanks to what preheat duration before start seldom makes longer than 10 seconds. When the control lamp of preheat on the dashboard dies away, the engine can be started.

For bystry warming up of the engine preheat works also after start of the engine. Duration of preheat is regulated by the monitor depending on temperature of cooling liquid. The device management is behind the average console under the air channel.

The monitor preheat obtains information on engine temperature from the sensor of temperature of cooling liquid. On the basis of the obtained data the monitor determines duration of preheat and size of current.