Opel Astra A

1991-1998 of release

Repair and operation of the car

Opel Astra A
+ 1. Maintenance instruction
+ 2. Maintenance
- 3. Engines
   - 3.1. SOHC engines
      3.1.1. Introduction
      3.1.2. Technical characteristics
      3.1.3. Check of a compression
      3.1.4. Top Dead Point (TDP)
      3.1.5. Cover of a head of cylinders
      3.1.6. Pulley of a kolechaty shaft
      + 3.1.7. Top external cover of a gas-distributing belt
      3.1.8. Back cover of a gas-distributing belt
      3.1.9. Gas-distributing belt (models of 1,4 and 1,6 l)
      3.1.10. A gas-distributing belt (C18 NZ, C20 NE which are released till 1993)
      3.1.11. Gas-distributing belt (C18 NZ, C20 NE 1993 of release later)
      3.1.12. Camshaft asterisk
      3.1.13. Asterisk of a bent shaft
      3.1.14. Tension roller of a gas-distributing belt (l models 1,4 and 1,6)
      3.1.15. Camshaft epiploons
      3.1.16. Camshaft
      3.1.17. Head of cylinders
      3.1.18. Oil pallet and maslozaborny branch pipe
      3.1.19. Oil pump
      3.1.20. Epiploons of a bent shaft
      3.1.21. Flywheel
      3.1.22. Fastening of the engine and transmission
   + 3.2. DOHC engines
   + 3.3. Diesel engines
   + 3.4. Engine electric equipment
+ 4. Ventilation and heating
+ 5. Power supply system
+ 6. System of decrease in toxicity
+ 7. Coupling
+ 8. Transmissions
+ 9. Half shafts
+ 10. Brake system
+ 11. Suspension bracket and steering
+ 12. Body
+ 13. Electric equipment
+ 14. Electrical circuitries


3.1.12. Camshaft asterisk


1. Remove external covers of a gas-distributing belt.
2. Install the N1 piston in VMT.
3. In models of 1,4 l and 1,6 l insert a suitable core into a tension indicator lever opening, tighten the lever against the stop clockwise and stop the lever, having inserted a core into the corresponding opening in a basic plate of the indicator of a tension.
4. Weaken three fixing bolts of the pump of the cooling system. Turn the pump so that to weaken a tension of a gas-distributing belt.
5. Before unscrewing a bolt of an asterisk it is necessary to stop the camshaft. For this purpose use the special tool.
6. Unscrew a camshaft asterisk bolt.
7. Remove an asterisk.


1. Put on an asterisk the camshaft (the ledge (1) on the camshaft is inserted into an opening (2) on an asterisk).
2. Insert a fixing bolt of an asterisk and tighten it till the required inhaling moment.
3. If necessary put on a cover of a head of cylinders.
4. Put on a gas-distributing belt and adjust its tension. Establish external covers of a belt.

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