BMW 3 series E30

Since 1983-1994 of release

Repair and car operation



BMW E30
+ 1. The maintenance instruction
+ 2. Maintenance service
- 3. The engine
   + 3.1.2. Specifications
   - 3.2. Dismantle and engine major repairs
      3.2.2. Specifications
      3.2.3. Major repairs – the general instructions
      3.2.4. Compression check in engine cylinders
      3.2.5. Major repairs – broad-brush observations
      3.2.6. Diagnostics of the engine with the help вакууметра
      3.2.7. Major repairs – alternatives
      3.2.8. Dismantle of the power unit
      3.2.9. Removal and engine installation
      3.2.10. An order of dismantling of the engine
      3.2.11. Dismantling of a head of the block of cylinders
      3.2.12. Clearing and check of a head of cylinders and details клапанного the mechanism
      3.2.13. Repair of valves
      3.2.14. Assemblage of a head of the block of cylinders
      3.2.15. Removal of pistons and rods
      3.2.16. Dismantle коленвала
      3.2.17. An intermediate shaft (only engine M20)
      3.2.18. Clearing of the block of cylinders
      3.2.19. Check of a condition of the block of cylinders
      3.2.20. Хоннингование cylinders
      3.2.21. Check of a condition of pistons and rods
      3.2.22. Condition check коленвала
      3.2.23. Check radical and шатунных bearings
      3.2.24. An engine assembly order
      3.2.25. Installation of piston rings
      3.2.26. Installation of an intermediate shaft
      3.2.27. Installation коленвала and check of backlashes in radical bearings
      3.2.28. Installation of a back epiploon
      3.2.29. Installation of rods and pistons, check of backlashes in шатунных bearings
      3.2.30. Start-up of the engine after repair and обкатка
   + 3.3. An engine electric equipment
+ 4. Cooling system
+ 5. Heating and ventilation
+ 6. Fuel system
+ 7. An exhaust system
+ 8. Transmissions
+ 9. Coupling
+ 10. Brake system
+ 11. A running gear
+ 12. A body
+ 13. An electric equipment
+ 14. A good advice





3.2.22. Condition check коленвала
PERFORMANCE ORDER
1. Wash out a cranked shaft solvent and dry compressed air, clean oil channels, clear necks.
2. Remove надфилем agnails.
3. Check up a condition of necks of a shaft, presence of cracks, hollows, задиров. Check up a roughness of necks, потерев about them a copper coin. If there are traces necks follows перешлифовать.
4. Measure diameter of necks in several places on a circle and on length and define конусность and ovality.
5. At appreciable damages or if конусность and ovality exceed norm коленвал follows перешлифовать and to replace loose leaves repair.
6. If on necks коленвала under epiploons the deep flute from a working edge of an epiploon was formed, there are scratches or other damages коленвал it is recommended to replace, or проконсультроваться in car-care centre where a neck it is possible to chisel and напрессовать the plug. If development from an epiploon deep even after installation of a new epiploon there will be an oil leak.
7. Check up a condition radical and шатунных loose leaves (subsection 3.2.23 see).

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