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


3.1.13. Asterisk of a bent shaft


1. Remove external covers of a gas-distributing belt and install the N1 piston in VMT.
2. Remove a pulley of a bent shaft.
3. In the C18 NZ and C models 20 NE, unscrew a bolt of an asterisk of a bent shaft. To prevent rotation of a bent shaft, remove a starter and stop a flywheel by means of the big screw-driver.
4. Weaken a tension of a gas-distributing belt and remove it.
5. Remove an asterisk of a bent shaft.
6. Take a spline (a photo at the left) and a washer (a photo on the right) from a bent shaft.


1. In models of 1,4 l and 1,6 l insert a spline into a groove of a bent shaft and put on an asterisk together with an adjusting flange.
2. In the models C 18 NZ and C 20 NE, dress a washer, insert a spline and establish an asterisk. Tighten a new bolt till the required inhaling moment.
3. Put on a gas-distributing belt.
4. Put on a pulley of a bent shaft.
5. Adjust a tension of a belt and establish external covers of a belt.

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