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


3.2.12. Head of cylinders (X 16 XEL)


1. Disconnect a wire of the minus plug of the accumulator.
2. Establish capacity under the lower hose of a radiator. Disconnect a hose from a radiator and merge cooling liquid in capacity.
3. Remove the top part of an inlet collector.
4. Disconnect an airintaking branch pipe and remove the air filter.
5. Take off a wedge-shaped belt.
6. Disconnect a grounding wire from an arm of a plait of wires. Disconnect an arm from an inlet collector.
7. Disconnect the generator regulator, unscrew the lower fixing bolt and remove the generator aside.
8. Disconnect the top hose of a radiator.
9. Remove an arm of wires together with an airintaking tube from the lower part of an inlet collector.
10. Disconnect a tube and a rope together with an arm from a throttle casing.
11. Remove a casing of wires.
12. Unscrew four bolts on a casing of a throttle and remove a throttle aside.
13. Press a fuel hose and disconnect fuel tubes from pressure regulator.
14. Disconnect wires from a potentiometer and the step electric motor of system of idling (the 1-step electric motor, 2 – a potentsiomer of the throttle valve).
15. Disconnect a plait of wires from an arm of the sensor of rotation of a bent shaft.
16. Disconnect wires from spark plugs.
17. Disconnect the ignition distributor block.
18. Disconnect clips and disconnect a ventilating hose of a case of the engine from a cover of a head of cylinders. Uncover a head.
19. Disconnect an airintaking branch pipe and a vacuum hose from the air valve.
20. Disconnect a wire from the oxygen sensor.
21. Completely disconnect the top hose of a radiator.
22. Disconnect wires from the cooler temperature sensor (shooters specified sockets of wires of the temperature sensor).
23. Turn a pulley of a bent shaft so that the synchronizing tag deviated on 60 ° the provision of VMT.
24. Remove a back cover of a gas-distributing belt.
25. Disconnect a forward part of an exhaust pipe.
26. Merge engine oil.
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.
28. Remove a head of cylinders.


1. Check a condition of a head, including openings and carvings.
2. Check the block of cylinders for existence of damages and wear.
3. Establish new laying of a head so that the inscription "TOP" was from above.
4. Establish a head of cylinders.
5. Insert new bolts and tighten them in the specified sequence.
6. Tighten a stopper of the oil pallet.
7. Connect a forward part of an exhaust pipe.
8. Establish a back cover of a gas-distributing belt.
9. Before establishing a gas-distributing belt install the N1 piston in VMT and combine synchronizing tags (I – asterisks of camshafts, II – asterisks of a bent shaft).
10. Establish the remained details and tighten bolts and nuts till the necessary moments of an inhaling.
11. Replace laying, clips and clamps if they are worn-out or damaged.
12. Check connections by the socket of wires.
13. Fill in new cooling liquid and engine oil.
14. Start the engine, check whether there is no leak of oil, fuel or cooling liquid.

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