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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2.1.6. Removal and installation of covers of a distributive chain

This procedure belongs to engines M10 and М30.


The top cover of a distributive chain can be removed separately. If it is necessary to remove both top, and bottom covers, you will need special tools. Before the beginning of work read points 8 and 9.

Removal

 PERFORMANCE ORDER

  1. Disconnect a negative wire of the battery.

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. If you remove the bottom cover of a distributive chain (the top cover can be removed separately), remove the fan of cooling and a fan casing, a radiator and a pulley of a driving belt of the fan (see. Head cooling System).
  2. Only on the M10 engine remove the water pump (see. Head cooling System).
  3. On engines where the cover of the distributor of ignition is established directly on a cover of a distributive chain, uncover the distributor, a begunok and a black plastic cover under a begunok (see. Head Routine maintenance of the car).
  4. On the M30 engine equipped with fuel system L-Jetronic, remove the distributor from the top cover of a distributive chain (see. Head ignition System).
  5. Uncover heads of cylinders (see. Section Removal and installation of a cover of a head of cylinders).
  1. If you remove the bottom cover of a distributive chain from the M30 engine, remove a pulley of a cranked shaft from a damper krutilny fluctuations/nave. Hold a pulley in an immovability on the central bolt by means of a replaceable head, and give bolts of a pulley other replaceable head.
  1. If you remove the bottom cover of a distributive chain, remove a shock-absorber/nave, having blocked a cranked shaft and having released a big central bolt. As this bolt will tighten very hardly, you will need a long collar and a replaceable head. On M30 engines experts of BMW recommend to use a head of 3/4 inches and a collar as on them the central bolt will tighten especially hardly. To block the crankshaft during weakening of a bolt, use the special firm BMW No. 11 2 100 adaptation (or its equivalent).
  2. On M10 engines if you could not get the special tool described in the previous point (8), it is possible to try to block the crankshaft, having uncovered a flywheel / a driving disk and having inserted a screw-driver with a wide sting into teeths of its wreath. On M30 engines after return of the central bolt, probably, it is required to use a stripper with capture for removal of a damper of krutilny fluctuations from the crankshaft. Establish capture for an internal flute of a pulley and very slowly tighten the central bolt of a stripper, all the time checking, whether the pulley was bent.

If the pulley became attached to a cranked shaft, it is possible to try to grease nave area with a small amount of getting oil and then slightly обстучать its hammer.

  1. Unscrew a cap and remove a spring of a natyazhitel of a distributive chain.
  2. Plunzher of a natyazhitel can leave together with a spring. If is not present, take a plunzher from an opening for a spring of a natyazhitel. For check of work of a plunzher see. Section Removal, survey and installation of a distributive chain and asterisks of its natyazhitel.

The spring is in the compressed condition, and it can serve as the reason of sharp ejection of a cap from an opening. Hold a cap during untwisting and release a spring slowly.

  1. On M30 engines if you remove the top distributive cover, отболтите a cover of the thermostat and remove the thermostat (see. Head cooling System).
  2. On M30 engines if you remove the bottom distributive cover, weaken fixing bolts of the generator and take the generator aside. Give a forward bottom bolt of a fixing bracket and weaken other bolts. Also отболтите a fixing bracket of the steering pump with hydrostrengthening also take her aside.
  3. Give nuts and bolts of fastening of the top cover of a distributive chain to the block of cylinders and uncover. Will draw the simple scheme of an arrangement of bolts that at assembly to establish them in the same openings from which they were taken. Remove the top cover of a distributive chain. If it became attached to the block of cylinders, is soft обстучите its hammer with rubber brisk, or put to it wooden whetstone and knock on it with a hammer. On the M30 engines equipped with fuel system L-Jetronic, remove a power shaft of the distributor.
  4. Give nuts and bolts of fastening of the bottom cover of a distributive chain to the block of cylinders. On forget to give below three bolts of fastening of a forward part of the pallet of a case to the lower part of a forward cover.
  1. Weaken other bolts of the pallet of a case.
  1. Carry out a thin sharp knife between laying of the pallet of a case and the bottom cover of a distributive chain, separating thus laying from a cover. Be very careful not to damage and to soil laying that you could use it again then.
  2. Destroy laying hermetic between the bottom cover of a distributive chain and the block of cylinders, обстучав a cover a hammer with rubber brisk or a usual hammer, having put wooden whetstone. Do not push anything between a cover and the block not to damage a laying surface.
  3. Using a scraper, remove all traces of a material of old laying from interfaced surfaces of covers and the block of cylinders.

Be extremely careful not to damage and to scratch soft aluminum surfaces. Besides, try not to damage and not to soil laying of the pallet of a case. On sale are available, and there can be useful, special solvents for removal of laying. After complete removal of a material of laying of a surface of laying it is possible to degrease, having wiped them a rag moistened in suitable solvent.

Installation

 PERFORMANCE ORDER

  1. Replace forward epiploons (see. Section Replacement of forward epiploons). It is not necessary to risk, leaving old epiploons since to replace them at the removed covers it is possible. Do not forget to put a little oil on sponges of forward epiploons.
  2. Apply a thin film RTV type hermetic on a surface of laying of the pallet of the case, interfaced to the bottom cover of a distributive chain. Put more hermetic on regions where laying adjoins to the block of cylinders.

If laying of the pallet of a case is damaged, instead of complete replacement of laying you can try to cut off its forward part where it adjoins to the block of cylinders, then to cut off a forward part of new laying that it was just the same size.

  1. Cover an internal surface of the pallet a piece of rags, then clean off all traces of a material of old laying from interfaced surfaces. Attach a piece of new laying to the pallet by means of special gluing substance, then put RTV-hermetic as it is described at the beginning of this paragraph.
  2. Grease both parties of new laying of RTV-with hermetic, attach the bottom cover of a distributive chain to a forward part of the engine. Get bolts and tighten them with demanded effort. Tighten bolts one by one according to the crosswise scheme to make it evenly.

At first tighten bolts of fastening of the bottom cover to the block of cylinders, then bolts of fastening of the pallet of a case to a cover. If laying acts over connection of a cover with the block or forms folds in connection of a cover with the pallet, cut it that it stood correctly.


After RTV hermetic drawing assembly should be finished within 10 minutes to be in time before hermetic hardening.

  1. Establish the top cover of a distributive chain in the same way, as bottom. If laying acts over connection of a cover with the block of cylinders, cut off surpluses the razor.
  2. The rest of procedure of installation make as it should be, the return to removal.


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2.1.7. Removal, survey and installation of a distributive chain and asterisks of its natyazhitel