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
   - 3.3. Diesel engines
      3.3.1. Gear belt
      3.3.2. The 1,7 l diesel engine with a turbo-supercharging
      3.3.3. Tension of a gear belt
      3.3.4. The diesel TC4EE1 engine of 1,7 l with a turbo-supercharging
      3.3.5. Head of the block of cylinders
      3.3.6. The diesel TC4EE1 engine with a turbo-supercharging
      3.3.7. Check of a head of the block of cylinders and the block of cylinders on straightforwardness
      3.3.8. Camshaft
      3.3.9. Gas distribution phases
      3.3.10. Camshaft case cover oil separator
      3.3.11. Check and adjustment of gaps in the drive of valves
      3.3.12. Removal and installation of valves
      3.3.13. Replacement of oil scraper caps
      3.3.14. Grinding of valves
      3.3.15. Grinding in of valves
      3.3.16. Check of a gap in the directing plugs of valves
      3.3.17. Check of the directing plugs of valves
      3.3.18. Check of a compression
      3.3.19. Wedge-shaped belt
      3.3.20. Oil case
      3.3.21. Oil pump
      3.3.22. Safety valve
      3.3.23. Thermostat
      3.3.24. Check of kalilny candles
      3.3.25. Check of system of preliminary heating
      3.3.26. Removal of air from fuel system
      3.3.27. Check and adjustment of turns of idling
      3.3.28. Removal and installation of nozzles
      3.3.29. Check of an advancing of injection of fuel
      3.3.30. Heating of the fuel filter
      3.3.31. Replacement of the filtering element of the air filter
      3.3.32. Discharge of water from the fuel filter
      + 3.3.33. Useful tips
   + 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


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3.3.5. Head of the block of cylinders

GENERAL INFORMATION

Prevention

The head of cylinders can be removed only at the cold engine. At the same time not to disconnect inlet and final collectors.


Signs of defects of laying of a head of cylinders are:

 – deceleration of power of the engine;
 – losses of cooling liquid (white smoke in the fulfilled gases);
 – the raised oil consumption;
 – hit of cooling liquid in engine oil. Level of oil does not decrease, and increases. Gray color of engine oil, bubbles on the oil probe, oil liquid;
 – hit of oil in cooling liquid;
 – strong foaming of cooling liquid;
 – a small compression in two next cylinders.

Removal and installation

PERFORMANCE ORDER
1. Disconnect fuel pipelines at nozzles and TNVD. To disconnect pipelines completely, without bending them.
2. Uncover top and lower a gear belt.
3. Uncover a coupling case.
4. Install the piston of the 1st cylinder in the provision of an advancing of ignition before VMT.
5. Remove the vacuum pump.
6. Weaken and take off a gear belt.
7. Establish new laying of a head of cylinders.

Prevention

Depending on the size of a vystupaniye of the piston laying of different thickness is established. When replacing laying to pay attention to its designation. Designation is on lateral face of laying in the form of one, two tags, or their absence (see the tab. Designation of laying).


8. Check pistons and valves for wear. If wear is insignificant, then it is enough to establish laying of bigger thickness. For this purpose it is necessary to measure the indicator piston vystupaniye size.

Prevention

To carry out an inhaling of bolts in four steps. To use for this purpose only the checked and serviceable dynamometer key. Instead of it it is possible to use an angular washer for control of an inhaling of threaded connections.


9. Tighten bolts of a head of cylinders on a spiral from within outside the moment of 25 Nanometers.
10. Hold on bolts in the same sequence on 90 °.
11. Hold on bolts in the same sequence on a corner 90 °.
12. Hold on bolts in the same sequence on a corner 45 °.

Prevention

On the heated-up engine it is necessary to tighten bolts once again.


13. Install the cogged pulley of the camshaft. Screw a bolt of fastening of a pulley, without tightening it.
14. Put on and pull a gear belt.
15. Tighten a bolt of fastening of the cogged pulley the moment of 90 Nanometers.
16. Check an injection advancing.
17. Install the vacuum pump.
18. Establish new sealing laying under a cover of the case of the camshaft and to fix a cover by bolts.
19. Establish the lower and top covers of a gear belt.
20 Connect fuel pipelines to TNVD and nozzles.
21. Start and warm up the engine (temperature of oil of 60 °C).
22. Check the level of cooling liquid.
23. To improve bolts of fastening of a head of cylinders in the above described order on a corner 30 ° a rigid key. The subsequent tightening of bolts (for example, after 1000 km of a run) is not necessary.
24. Check the speed of idling and the maximum speed.

Designation of laying

LAYING
THICKNESS, MM
VYSTUPANIYE OF THE PISTON, MM
without tag
1,3
0,75
with one tag
1,4
0,75 – 0,85
with two tags
1,5
0,85

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