Opel Astra A

1991-1998 of release

Repair and operation of the car



Opel Astra A
+ 1. Maintenance instruction
- 2. Maintenance
   2.1. Technical characteristics
   - 2.2. Maintenance operations
      2.2.1. Introduction
      2.2.2. Current maintenance
      + 2.2.3. Maintenance through 15 000 km or each 12 months
      - 2.2.4. Maintenance each 30 000 km or in 24 months
         2.2.4.1. Replacement of cooling liquid
         2.2.4.2. Air фильт
         2.2.4.3. Replacement of the fuel filter
         2.2.4.4. Replacement of spark plugs (SOHC)
         2.2.4.5. Cover of the distributor of ignition and wires of high voltage
         2.2.4.6. Coupling switching off drive rope
         2.2.4.7. Check of level of oil in the mechanical transmission
         2.2.4.8. Check of the automatic transmission
         2.2.4.9. Check of brake shoes
         2.2.4.10. Check of seat belts
      + 2.2.5. Maintenance each 60 000 km or in 48 months
+ 3. Engines
+ 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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2.2.4.4. Replacement of spark plugs (SOHC)

PERFORMANCE ORDER
1. The correct work of spark plugs is very important for effective operation of the engine.
2. Mark wires of high voltage and disconnect them from spark plugs.
3. Clear area around spark plugs and unscrew candles.
4. The condition of spark plugs can give valuable information on a condition of the engine.
5. If a candle tip pure and white, without deposits, so fuel mix is too poor.
6. If the tip of a candle is covered with black deposits, so fuel mix is too saturated.
7. If the tip of a candle is covered with light brown or gray deposits, so fuel is adjusted correctly and the engine, most likely, in good shape.
8. Measure a spark gap of a candle by means of a set of probes or the special tool.
9. Adjust a spark gap, having turned in a tip.

Prevention

For simplification of installation of spark plugs, put on a short piece of a tube a candle. He will act as the universal hinge and will not allow to damage a carving.


Installation

Twirl candles a hand, then tighten them till the required inhaling moment. Connect wires of high voltage.
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