Subaru Legacy

Since 1990-1998 of release

Repair and car operation



Subaru Legasi
+ 1.1. Identification numbers
- 2. Maintenance service
   2.1. Introduction
   2.2. Technical characteristics
   2.3. Periodicity of service
   2.4. Check of level of engine oil
   2.5. Level of a cooling liquid
   2.6. Level of a brake liquid and a liquid of a drive of coupling
   2.7. A liquid for a windscreen washer
   2.8. Accumulator check
   2.9. Tyres and pressure check in tyres
   2.10. Check of level of oil in an automatic transmission
   2.11. Check of level of a liquid in the steering amplifier
   2.12. Replacement of oil and the oil filter
   2.13. Check and accumulator service
   2.14. Accumulator gymnastics
   2.15. Check of system of cooling
   2.16. Check of hoses, tubes and their replacement
   2.17. Check and replacement of brushes of screen wipers
   2.18. Shift of tyres
   2.19. Suspension bracket and steering check
   2.20. Exhaust system check
   2.21. Check of level of oil in a transmission and the main transfer
   2.22. Check of level of oil in differential (the main transfer)
   2.23. Check of brake system
   2.24. Check of the vacuum amplifier of brakes
   2.25. Check of a manual brake
   2.26. Check of fuel system
   2.27. Replacement of the fuel filter
   2.28. Check and replacement приводного a belt
   2.29. Check of a free wheeling of a pedal of a brake
   2.30. Check of a free wheeling of a pedal of coupling
   2.31. Check and replacement of spark plugs
   2.32. Check of high-voltage wires
   2.33. Check and adjustment of turns of idling
   2.34. Replacement of the air filter
   2.35. Check and replacement of the valve of ventilation картера (PCV)
   2.36. Check of system of catching of steams of fuel
   2.37. Check of system of repeated burning of the fulfilled gases (EGR)
   2.38. Service of system of cooling
   2.39. Replacement of a brake liquid
   2.40. Oil replacement in an automatic transmission
   2.41. Oil replacement in a mechanical transmission
   2.42. Check and adjustment of backlashes of valves
   + 2.43. The basic malfunctions
+ 3. Engines
+ 4. Heating, ventilation
+ 5. Fuel system
+ 6. An exhaust system
+ 7. Systems of start, ignition
+ 8. Transmissions
+ 9. Coupling, shaft
+ 10. Brake system
+ 11. A suspension bracket
+ 12. A steering
+ 13. A body
+ 14. An electric equipment





2.31. Check and replacement of spark plugs
THE GENERAL DATA

The tools necessary for replacement of spark plugs

1 – a key for вывинчивания spark plugs
2 – динамометрический a key
3 – a head of a key with a ratchet
4 – the extension piece
5 – a template for measurement of an interelectrode backlash of a spark plug

For replacement of spark plugs it is necessary to use a special key for unscrewing of candles with a rubber condensing ring which allows to take the unscrewed spark plug from a nest. For replacement of spark plugs gather all necessary tools.

PERFORMANCE ORDER
1. At replacement of candles prepare new candles of demanded type.
2. Check up an interelectrode backlash in new candles by means of a template.
3. If necessary adjust an interelectrode backlash. For backlash updating turn in only a lateral electrode.
4. Not to mix high-voltage wires, make replacement свеч ignitions by turns. At removal of high-voltage wires from spark plugs use the special tool. Pull not for a wire, and for a protective cover.
5. Unscrew a spark plug. On the engine of 2,5 l for access to spark plugs on an engine left-hand side, it is necessary to remove the accumulator and a broad tank.
6. The visual control of a working part of spark plugs can show, an engine condition. If a nasal part of an insulator of spark plugs pure and white, without a touch it testifies to too poor mix. It also specifies that the candle too hot, that is warmly from the central electrode is taken away slowly. If it so it is necessary to adjust structure of a mix or to replace a candle. If the nasal part of an insulator of a candle is covered by black touch, it means that a mix too rich. If a touch black and oily it testifies to deterioration of the engine and necessity of its check and repair. If the nasal part of an insulator is covered by light brown touch the mix structure is optimum, and the engine is in a good condition.
7. The interelectrode backlash of a spark plug is of great importance, as at too big and at too small backlash the size of a spark that leads to decrease in an overall performance of the engine changes. The backlash should correspond to technical requirements always.
8. Before spark plug installation in the engine check up, that the carving was pure and all threads of a carving whole. Put on a candle carving a thin layer антипригарного a material.
9. For candle screwing up on some coils it is possible to use a piece of a rubber hose in which on the one hand to insert an insulator of a candle and, rotating a hose, to screw up a candle on some coils, then it is necessary to remove a hose and to screw up a candle the demanded moment.