Check and replacement of spark plugs. BMW the 5th E28/E34 series (from 1981 to 1993 of release)
Repair of BMW E28 and series E34 from 1981 to 1993
1. Cars of the BMW brand of 5-series
2. Engine
3. Cooling system
4. Power supply system
5. Ignition system
6. Control systems of the engine and decrease in toxicity of the fulfilled gases
7. System of production of the fulfilled gases
8. Coupling
9. Manual box of gear shifting (RKPP) and automatic transmission (AT)
10. Transmission line
11. Steering and suspension bracket
12. Brake system
13. Body
14. Control body sizes
15. Heater and air conditioner
16. System of onboard electric equipment
17. Routine maintenance of the car
17.1. Schedule of routine maintenance
17.2. Introduction
17.3. Current leaving
17.4. General information on control
17.5. Check of levels of liquids
17.6. Check of a condition of tires and pressure in them
17.7. Replacement of impellent oil and oil filter
17.8. Check of level of liquid of system of hydrostrengthening of a wheel
17.9. Check of level of lubricant liquid of automatic transmission
17.10. Rotation of wheels
17.11. Check of a condition and replacement of hoses of an impellent compartment
17.12. Condition check, adjustment of a tension and replacement of driving belts
17.13. Check and adjustment of turns of idling of the engine and level WITH
17.14. Check of a condition of the battery, care of it and charging
17.15. Check and replacement of spark plugs
17.16. Check and replacement of candle VV of wires, covers and distributor begunka
17.17. Check of level of oil in a manual box of gear shifting
17.18. Check of level of lubricant liquid of differential
17.19. Check and adjustment of gaps of valves
17.20. Check and greasing of draft of a drive of a butterfly valve
17.21. Replacement of the air filter
17.22. Check of fuel system
17.23. Check of functioning of system of cooling
17.24. Check of a condition of system of production of the fulfilled gases
17.25. Check of a condition of components of a suspension bracket and steering
17.26. Check of a condition of protective covers of power shafts
17.27. Check of brake system
17.28. Check of a condition and replacement of brushes of screen wipers
17.29. Replacement of transmission liquid and AT filter
17.30. Plums, washing and filling of system of cooling
17.31. Replacement of the fuel filter
17.32. Replacement of transmission oil of manual transmission
17.33. Replacement of lubricant liquid of differential
17.34. Check of functioning of system of catching паров gasoline (EVAP)
17.35. Control of an alarm lamp of the notification about approach of term of planned maintenance (SPTO)
17.36. Replacement of a distributive belt of the engine
18. Size table and adjusting data
19. Schematic electric circuits
20. Governing bodies and operation receptions
21. System of onboard diagnostics - a principle of functioning and codes of malfunctions
 








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17.15. Check and replacement of spark plugs

Annually or each 20 000 km of run  

Tools necessary for replacement of spark plugs.

1 — the Head of a candle key - is equipped with a special soft insert for protection of a porcelain insulator of a candle
2 the Dinamometrichesky key - though it also is not the extremely necessary tool, but gives the maximum guarantee of correctness of effort of a tightening of candles
3 the Ratchet drive - is standardly applied in a set to a candle key
4 the Extension piece - depending on model of the car and its accessories special extension pieces and universal hinges can be necessary for ensuring access to candles for you
5 the Measuring instrument of a candle gap is an adaptation for check of a candle gap is issued in various updatings. Make sure that there is a measuring instrument for a gap of your car. Instead of it it is possible to use edges щупа

Before the beginning of work prepare all necessary tools which include a replaceable head of a candle key and a set of edges щупа. Some producers of spark plugs deliver special tools for measurement of a candle gap.

The best way of replacement of spark plugs is preliminary purchase of new candles, adjustment of their gap and replacement of each candle in turn. Upon purchase of candles it is very important to choose those candles which are intended for the engine of your car. Information on them can be received in the Size table and adjusting data at the end of the Management.

 PERFORMANCE ORDER

  1. Having near at hand new candles, let's to the engine cool down completely before the beginning of removal of the old. During this time it is possible to examine new candles on existence in them of defects and to check candle gaps.
  1. The candle gap is checked by insertion of a measuring instrument of the necessary thickness between electrodes on the candle end. The gap should correspond specified in the Size table and adjusting data at the end of the Management. The delay should concern each of electrodes only. If the gap does not correspond to norm, slightly turn in the bent part of an electrode by means of a regulator with notches before achievement of necessary size of a gap.

At adjustment of a gap of a new candle turn in only the basis of an electrode of grounding, without touching its end. If the electrode of grounding is displaced rather central electrode, by means of a regulator with notches level them. Check a porcelain insulator on existence of the cracks indicating those, it is necessary to replace a candle.


  1. At the cooled engine disconnect VV a wire from one of spark plugs. Thus do not pull for a wire, hold the socket on its end. Sometimes it is required to apply a rotary motion to separation of the socket.
  1. If there is such possibility, use the compressed air for blowing of dirt and particles of alien materials from area round spark plugs. It is possible to use for this purpose the ordinary bicycle pump. It becomes on purpose to avoid possibility of hit of garbage in the cylinder after extraction of candles.
  1. Establish a head of a candle key on a candle and remove a candle from the engine, having unscrewed it counter-clockwise.
  1. Compare the taken-out candle with shown in pictures, it will give you useful information about the general condition of the engine.
  2. Put a little medsoderzhashchy anti-taking structure on a carving of a new candle. Insert a candle into a head of cylinders and twist it fingers against the stop, then tighten by means of a head of a candle key. If it is possible, use for a candle tightening a dinamometrichesky key to be sure that it is established correctly. The effort of a tightening of candles is included in the Size table and adjusting data at the end of the Management.

In order to avoid possibility of a vvinchivaniye of a candle not on a carving put on its shaft a small piece of a rubber hose or a plastic tube. The flexible tube will work as universal - the kardanny hinge, providing candle alignment in relation to a candle nest and in case the candle starts to warp, the hose will slip on it, without giving possibility to strip a thread.

  1. Before connection to a candle of high-voltage (VV) of a wire carefully examine it as it is described in the Section Check and replacement of candle VV of wires, covers and a distributor begunka.
  2. Connect a wire to the established new candle, again using a rotary motion and holding the socket while it will not be put on a candle up to the end.
  3. Repeat the procedure described above for other spark plugs consistently to avoid the wrong connection of candle VV of wires.


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17.14. Check of a condition of the battery, care of it and charging
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17.16. Check and replacement of candle VV of wires, covers and distributor begunka