Removal and installation of a cover of a head of cylinders. BMW the 5th E28/E34 series (from 1981 to 1993 of release)
агентство организации праздников
Repair of BMW E28 and series E34 from 1981 to 1993
1. Cars of the BMW brand of 5-series
2. Engine
2.1. The repair work which is carried out without extraction of the engine from the car
2.1.1. General information
2.1.2. Reduction of the piston of the first cylinder in the provision of the top dead point (VMT)
2.1.3. Removal and installation of a cover of a head of cylinders
2.1.4. Removal and installation of the inlet pipeline
2.1.5. Removal and installation of a final collector
2.1.6. Removal and installation of covers of a distributive chain
2.1.7. Removal, survey and installation of a distributive chain and asterisks of its natyazhitel
2.1.8. Removal and installation of covers of a distributive belt
2.1.9. Removal, survey and installation of a distributive belt and asterisks of its natyazhitel
2.1.10. Replacement of forward epiploons
2.1.11. Removal and installation of a head of cylinders
2.1.12. Removal and installation of the pallet of a case
2.1.13. Removal, check of a condition and installation of the oil pump
2.1.14. Removal and flywheel installation / driving disk
2.1.15. Replacement of a back epiploon of a cranked shaft
2.1.16. Check of a condition and replacement of support of the power unit
2.2. Procedures of major maintenance of components of the 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
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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2.1.3. Removal and installation of a cover of a head of cylinders

If the radio receiver of your car is equipped with system of protection against theft, make sure that you gathered the correct code before a battery detachment.


If after connection of the battery of an inscription on an instrument guard appeared not in that language, address to the Section System of protection of an audiosystem from theft and language of an instrument guard where procedure of installation of the necessary language is described.

Removal

 PERFORMANCE ORDER

  1. Disconnect a negative wire of the battery.
  2. Disconnect a hose сапуна from a cover of a head of cylinders.
  3. On M20 engines отболтите also remove a basic bracket of the inlet pipeline and if is available, a bracket for sensors of the engine or the idling stabilizer (it is probable, it is required to disconnect electric sockets of sensors and the stabilizer).
  4. On M30 engines disconnect the electric socket of a measuring instrument of an air stream. Remove clips from electroconducting and take her aside.
  5. Where it is necessary on M30 engines, disconnect hoses and shtutserny connections from a hose of an inlet air line, then release a clip and remove a hose from the butterfly valve case. Give nuts of fastening of a casing of an air purifier and remove a casing together with a hose and a measuring instrument of an air stream.
  6. Give fixing nuts and washers of a cover of a head of cylinders.
Arrangement of bolts of a cover of a head of cylinders (are specified by shooters) on four-cylinder M10 engines.
Arrangement of bolts of a cover of a head of cylinders (are specified by shooters) on six-cylinder M20 engines.
  1. Where it is necessary, disconnect a clip or a cover of a wire of a spark plug from the screw of adjustment of a gap and put it aside. Usually there is no need of a detachment of wires of spark plugs.
  2. Uncover heads of cylinders and laying. Throw out old laying. On M40 engines also uncover a cam-shaft.
  1. Uncover heads of cylinders the M40 engine.
  1. Uncover a cam-shaft the M40 engine.
  1. Remove laying of a cover of a head of cylinders from the M40 engine.
  1. If it is provided, remove semicircular consolidation from the valve on a forward part of a head of cylinders.

Installation

 PERFORMANCE ORDER

  1. Using a scraper, remove all traces of a material of old laying from surfaces of a cover and a head of cylinders.

Be extremely careful not to damage soft aluminum surfaces. On sale are available, and there can be useful, special solvents for removal of laying. After the material of laying is completely removed, surfaces of laying can be cleared of greasing by means of a rag moistened in suitable solvent.

  1. If it is provided, establish semicircular consolidation on the valve in a forward part of a head of cylinders, then put special RTV hermetic for laying on connections between consolidation and the corresponding surface of laying of a cover of a head of cylinders.

After drawing of hermetic it is necessary to establish a cover of a head of cylinders and to tighten nuts within no more than ten minutes.

  1. Establish a cam-shaft cover (M40 engines), a cover of a head of cylinders and new laying. Get washers and nuts; reliably and exactly tighten nuts. Do not draw them - they should be tightened so to prevent leakage of oil through laying, but is not excessive not to deform a cover.
  2. Other part of procedure of installation corresponds to removal upside-down.


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2.1.2. Reduction of the piston of the first cylinder in the provision of the top dead point (VMT)
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2.1.4. Removal and installation of the inlet pipeline