Check of a condition and replacement of support of the power unit. 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
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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2.1.16. Check of a condition and replacement of support of the power unit

Support of the power unit seldom demand to themselves the attention, it is necessary to replace the broken or worn-out support immediately, differently additional loads arising in this case of components of the transmission line will result in their intensive wear and an exit of their system.

Condition check

 PERFORMANCE ORDER

  1. During check the power unit should be raised slightly for removal of its weight from support.
  2. To Poddomkratta the car and reliably establish it on axial support, then get a jack under the case pallet. Place big wooden whetstone between a head of a jack and the pallet, then carefully raise the power unit a jack, only so to remove its weight from support.

DO NOT GET any parts of the body under the engine supported only by means of a jack!


  1. Check rubber parts of support on existence of cracks, hardenings or an otsloyeniye from metal components.
  1. Sometimes the rubber part breaks up directly on the center.
  1. Check, whether arms of a support and elements of the power unit and a car body (use for this purpose as the lever a big screw-driver or mount) move relatively each other. If movement takes place, lower the engine and tighten fixing bolts or nuts.
  1. For reduction of wear by support it is necessary to put special protecting means for rubber.
  1. On models with the M40 engine check a condition of dampers on each support, having removed them and having tried to compress and stretch.
  1. If thus the damper shows only very small resistance, it is necessary to replace it.

Replacement

 PERFORMANCE ORDER

  1. If you have to replace dampers on the M40 engine, simply give bolts, then establish new dampers and tighten bolts.
  2. For replacement of support disconnect a negative wire of the battery, then поддомкратьте the car and reliably establish it on axial support if you any more did not make it earlier.

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.

  1. Prop up the power unit as it is described in item 2.
  1. Give a big nut of fastening of an arm to a support (it is specified by an arrow).
  1. Slightly raise the engine, then give the bottom nuts/bolts of fastening of a support to a stretcher and remove a support.
  2. Installation of a support make as it should be, the return to removal. For bigger reliability of a tightening of nuts/bolts of support put on them special carving hermetic.


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2.1.15. Replacement of a back epiploon of a cranked shaft
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2.2. Procedures of major maintenance of components of the engine