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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. The repair work which is carried out without extraction of the engine from the car

The repair work which is carried out without extraction of the engine from the car

General information

Four - and six-cylinder engines with one camshaft of the top arrangement, described in this Management, are very similar on a design. Where between them there are distinctions, them will be specified.

Means by means of which camshafts of the top arrangement are actuated, differ depending on engine type; on engines M10 and М30 the distributive chain while on engines M20 and М40 the distributive belt is established is used.

Many serious repair work can be executed, without taking the engine from the car.

Before the beginning of any work make cleaning of an impellent compartment and external surfaces of the engine with application of any obezzhirivatel. It will essentially simplify performance of the forthcoming procedures and will reduce risk of entering of dirt in the engine.

Depending on components with which you are going to work, for ensuring the best access to the engine during repair there can be useful a cowl removal (if necessary see. Head Body). In order to avoid damage of the painted surfaces cover car wings special covers, or if they are not present, blankets or covers will approach.

If because of found leakages of oil, the vacuum, the fulfilled gases or a cooler there will be a need of replacement of laying or epiploons, repair can be generally made without engine extraction from the car. Thus there is a sufficient access to laying of the inlet pipeline and a final collector, the case pallet, to epiploons of a cranked shaft and a head of cylinders.

With the engine established on the car for repair such external components, as the inlet pipeline and a final collector, the case pallet, oil and water pumps, a starter, the generator, the distributor and components of fuel system freely can be removed.

Removal of a head of cylinders does not demand engine extraction. Maintenance of a camshaft, yokes and other components of the klapanny mechanism is most easier for making at the removed head of cylinders; these procedures are described in appropriate section. However pay attention that on the M40 engine the cam-shaft can be removed without engine extraction as it is kept by covers of bearings.

In emergency situations, such as, in the absence of the necessary equipment, without extraction of the engine can be performed and such works, as repair or replacement of piston rings, pistons, rods and bearings of the bottom heads of rods. However this practice is not recommended, since the big preparatory work and careful cleaning of all involved components should precede it.


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2.1.1. General information