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Opel Astra, Zafira

Since 1998 of release

Repair and car operation



Opel Astra
+ Cars Opel Astra and Zafira
+ The operation manual
+ Routine maintenance
+ The engine
+ Systems of cooling, heating
- The power supply system and release
   + The power supply system
   - System of injection of fuel of petrol engines
      Principle of functioning of systems of injection of fuel
      Check of serviceability of functioning of system of injection of fuel
      Removal and installation of components of system of the central injection of fuel Multec
      Removal and installation of components of systems of the distributed injection of fuel Multec-S and Simtec-70
      The monitoring system of temperature of soaked up air (model with the central injection) - a principle of functioning and check of serviceability of functioning
      Removal and installation of the inlet pipeline
      Removal and installation of a final collector
   + Systems of injection and turbo-supercharging of the diesel engine
   + Systems of release and decrease in toxicity of the fulfilled gases
+ Engine electric equipment
+ Manual transmission
+ Automatic transmission
+ Coupling and power shafts
+ Brake system
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment



The monitoring system of temperature of soaked up air (model with the central injection) - a principle of functioning and check of serviceability of functioning

Functioning principle

Information element of system is established in throttle cases the thermosensitive valve-switch. At temperature passing through the gauge soaked up less 35°С, the vacuum valve remains opened, providing giving of depression of the inlet pipeline on a diaphragm of the air thermovalve in the basis of the case of an air cleaner. Under the influence of depression the diaphragm rises, and заслонка blocks access to an air cleaner of cold air, leaving opened only "hot" channel.

In process of increase of temperature of air on an input in the throttle case there is a gradual deformation воскозаполненной capsules of a thermostatic element that leads перекрыванию the vacuum switch. As a result depression giving on a diaphragm stops and заслонка starts to fall, blocking receipt of warm air in an air cleaner. On termination of engine warming up there is opened only "cold" channel.

Check

 PERFORMANCE ORDER

  1. Muffle the engine and wait its full cooling. Disconnect an inlet air line from a forward part of an air cleaner, - заслонка should block the channel of giving of hot air completely. Start the engine: заслонка should rise immediately and completely block "the cold" channel. In process of engine warming up заслонка should fall slowly, gradually blocking "the hot" channel and opening "cold".
  2. For check of serviceability of functioning of the vacuum valve-switch, at the muffled engine disconnect from it a vacuum tube and stop up with its finger. At the cold engine in a tube depression should be felt. After engine warming up an impellent compartment of normal working temperature depression should disappear completely.
  3. For check of knot of the temperature valve of management, disconnect an inlet air line from the air cleaner case, - заслонка should block receipt of hot air completely. Disconnect a vacuum tube and, having connected to the union a suitable piece of a hose, strongly soak up air, - заслонка should block the channel of giving of cold air.
  4. Faulty components of system are subject to replacement. The vacuum valve-switch is built in a cover of the case throttle заслонки, the operating valve - in the case of the air filter. In an individual order the given components on the markets of spare parts are not delivered.
  5. Having finished check, restore initial connection of all lines.