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
   - 3.2. DOHC engines
      3.2.1. Technical characteristics
      3.2.2. Covers of a gas-distributing belt (X 16 XEL)
      3.2.3. Covers of a gas-distributing belt (all models, except X 16 XEL)
      3.2.4. Gas-distributing belt (X 16 XEL)
      3.2.5. A gas-distributing belt (all models, except X 16 XEL)
      3.2.6. Cover of a head of cylinders
      3.2.7. Asterisks of camshafts (X 16 XEL)
      3.2.8. Asterisks of camshafts (all models, except X 16 XEL)
      3.2.9. Camshaft epiploons
      3.2.10. Natyazhitel of a gas-distributing belt and intermediate pulley
      3.2.11. Camshafts
      3.2.12. Head of cylinders (X 16 XEL)
      3.2.13. A head of cylinders (all models, except X 16 XEL)
      3.2.14. Head of cylinders
      3.2.15. Hydraulic elevators of valves
      3.2.16. Oil pallet (X 16 XEL)
      3.2.17. Asterisk of a bent shaft
      3.2.18. Oil pump
      3.2.19. Epiploons of a bent shaft
      3.2.20. Engine and transmission
      3.2.21. Oil cooler
   + 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


0a910c3c




3.2.13. A head of cylinders (all models, except X 16 XEL)

Removal

PERFORMANCE ORDER
1. Disconnect a wire of the minus plug of the accumulator.
2. Merge cooling liquid.
3. Disconnect forward section of system of release.
4. The head of cylinders can be removed together with an inlet collector or the collector it is possible disconnect before removal of a head.
5. If you are going to remove a head of cylinders together with an inlet collector, disconnect all hoses of a tube and a wire from a collector. Unscrew a basic arm from a collector. Weaken fastenings of the generator and unscrew the top fastening from an inlet collector.
6. If you removed a collector, pass to point 17.
7. Disconnect a wire from the sensor of an air stream, disconnect a ventilating hose from a throttle casing. Remove the air filter and the sensor of an air stream.
8. Disconnect a rope from the lever of the throttle valve, unscrew an arm of a rope and disconnect it from an inlet collector.
9. Unscrew fixing nuts of wires of grounding from the fuel highway.
10. Disconnect a wire from the switch of the modes of a throttle.
11. Disconnect wires from fuel injectors.
12. Disconnect ventilating hoses from a cover of a head of cylinders.
13. Weaken fastenings of the generator and unscrew the top fastening from an inlet collector.
14. Unscrew a basic arm from a collector.
15. Check that all hoses, tubes and wires were disconnected.
16. Remove laying of a collector from a head of cylinders.
17. Turn a pulley of a bent shaft so that the synchronizing tag deviated on 60 °от provisions of VMT. Take off a gas-distributing belt and asterisks of camshafts.
18. In the XE, C 18 XEL, X 20 XEV C 18 models remove camshafts.
19. Remove a natyazhitel of a belt and an intermediate pulley.
20. Unscrew adjusting pins of screws of an external cover of a belt.
21. Unscrew two top fixing bolts of a back cover of a belt.
22. Uncover the ignition distributor, disconnect wires of high voltage and disconnect a wire from the distributor.
23. Disconnect a hose of cooling liquid from a head of cylinders.
24. Unscrew a bolt of an arm of a ventilating hose in a back part of the block of cylinders.
25. Disconnect the top hose of a radiator from a thermostat casing. Disconnect wires from temperature sensors.
26. Check that all necessary hoses, tubes and wires are disconnected.
27. Weaken bolts of a head of cylinders, at first on a quarter of a turn, and then on a half in the specified sequence (In the drawing the sequence of a vyvinchivaniye of bolts of a head of C 20XE cylinders, in the drawing on the right – the sequence of a vyvinchivaniye of bolts of a head of XE, C 18 XEL, X 20 XEV C 18 cylinders is specified at the left).
28. Completely unscrew and get bolts.
29. Remove a head of cylinders.
30. You will throw out old laying of a head.

Installation

PERFORMANCE ORDER
1. Carefully clean the joined surfaces of a head and the block of cylinders.
2. Establish new laying of a head.
3. Install a head on the block of cylinders.
4. Install the N1 piston in VMT.
5. Insert new bolts of a head and tighten them a hand.
6. Unscrew bolts of a head of cylinders (in the drawing the sequence of a vyvinchivaniye of bolts of a head of C 20XE cylinders, in the drawing on the right – the sequence of a vyvinchivaniye of bolts of a head of XE, C 18 XEL, X 20 XEV C 18 cylinders is specified at the left).
7. Tighten bolts till the required inhaling moment.
8. Hold on bolts on the required corner.
9. Establish the remained details on places and fill in cooling liquid. Check whether there are no leaks.

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