Opel Astra, Zafira

since 1998 of release

Repair and car operation



Opel Astra
+ Opel Astra and Zafira Cars
+ Operation manual
+ Routine maintenance
- Engine
   Specifications
   Check of kompressionny pressure in cylinders
   Diagnostics of a condition of the engine with use of the vacuum gage
   + Procedures of repair of petrol SOHC engines without their extraction from the car
   - Procedures of repair of petrol DOHC engines without their extraction from the car
      Reduction of the piston of the first cylinder in the provision of the top dead point of a step of compression (VMT)
      Removal and installation of a cover of the gas-distributing mechanism
      Removal and installation of a pulley of a cranked shaft
      Removal and installation of a cover of a drive of GRM
      Removal and installation of a belt of a drive of GRM
      Removal and installation of cogwheels cranked / camshafts and intermediate rollers
      Replacement of epiploons of camshafts
      Removal and installation of camshafts and pushers of valves, check of a condition of components
      Removal and installation of a head of cylinders
      Removal and installation of the pallet of a case
      Removal and installation of the sensor of level of impellent oil
      Removal, service and installation of the oil pump
      Removal, check of a condition and flywheel installation / driving disk
      Replacement of epiploons of a cranked shaft
      Check of a condition and replacement of support of a suspension bracket of the power unit
      Removal, installation and adjustment of the balancing mechanism of a cranked shaft (engines of 2.0 l)
   + Procedures of repair of diesel engines of 1.7 l and 2.0 l without their extraction from the car
   + General and major maintenance of the engine
+ Systems of cooling, heating
+ Power supply system and release
+ engine Electric equipment
+ Manual transmission
+ Automatic transmission
+ Coupling and power shafts
+ Brake system
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment




Procedures of repair of petrol DOHC engines without their extraction from the car

Reduction of the piston of the first cylinder in the provision of the top dead point of a step of compression (VMT)

General information

See. Reduction of the piston of the first cylinder in the provision of the top dead point of a step of compression (VMT).

Order of performance of procedure

All engines

Reduction of any of pistons in situation VMT is made by a provorachivaniye of a cranked shaft of the engine. If to take a detached view of the engine of a drive of GRM, the direction clockwise will be the normal direction of rotation of a cranked shaft. Remember that attempt of a provorachivaniye of a shaft counter-clockwise can lead to violation of adjustments of phases of a gazoraspredeleniye. The first is the cylinder, extreme GRM from a drive.

 PERFORMANCE ORDER

  1. Disconnect a negative wire of the accumulator. For the purpose of simplification of a provorachivaniye of the engine turn out all spark plugs.
  2. For the purpose of ensuring access to VMT label on cogwheels of camshafts, uncover GRM drive (see. Removal and installation of a cover of a drive of GRM).

L engines 1.4, 1.6 and 1.8


The scheme of an arrangement of adjusting labels of cogwheels distributive (1) and cranked (2) shaft in the provision VMT of the end of a step of compression of the piston of the first cylinder (l engines 1.4, 1.6 and 1.8)



 PERFORMANCE ORDER

  1. By means of the key which has been put on a bolt of fastening of a pulley of a cranked shaft, turn the last in the direction of normal rotation before deployment of cogwheels of camshafts by adjusting labels to each other. The label on a rim of a cogwheel of a cranked shaft thus should be combined with a label on the case of the oil pump (see an illustration the Scheme of an arrangement of adjusting labels of cogwheels distributive (1) and cranked (2) shaft in the provision VMT of the end of a step of compression of the piston of the first cylinder (l engines 1.4, 1.6 and 1.8).

At performance of the listed conditions the engine will be given in the provision VMT of the end of a step of compression of the piston of the first cylinder.

Engines of 2.0 l

 PERFORMANCE ORDER

  1. By means of the key which has been put on a bolt of fastening of a pulley of a cranked shaft, turn the last in the direction of normal rotation before combination of adjusting labels of cogwheels of camshafts with reciprocal risks on a cover of the gas-distributing mechanism. The label on a rim of a pulley of a cranked shaft thus should be combined with the index on the case of the oil pump.

At performance of the listed conditions the engine will be given in the provision VMT of the end of a step of compression of the piston of the first cylinder.