E30 series BMW 3

since 1983-1994 of release

Repair and car operation

+ 1. Maintenance instruction
+ 2. Maintenance
- 3. Engine
   + 3.1.2. Specifications
   - 3.2. Dismantle and major maintenance of the engine
      3.2.2. Specifications
      3.2.3. Major maintenance – the general instructions
      3.2.4. Compression check in engine cylinders
      3.2.5. Major maintenance – general comments
      3.2.6. Engine diagnostics by means of the vacuum gage
      3.2.7. Major maintenance – alternatives
      3.2.8. Dismantle of the power unit
      3.2.9. Removal and engine installation
      3.2.10. Order of dismantling of the engine
      3.2.11. Dismantling of a head of the block of cylinders
      3.2.12. Cleaning and check of a head of cylinders and details of the klapanny mechanism
      3.2.13. Repair of valves
      3.2.14. Assembly of a head of the block of cylinders
      3.2.15. Removal of pistons and rods
      3.2.16. Crankshaft dismantle
      3.2.17. Intermediate shaft (only M20 engine)
      3.2.18. Cleaning of the block of cylinders
      3.2.19. Check of a condition of the block of cylinders
      3.2.20. Honningovaniye of cylinders
      3.2.21. Check of a condition of pistons and rods
      3.2.22. Check of a condition of the crankshaft
      3.2.23. Check of radical and shatunny bearings
      3.2.24. Engine assembly order
      3.2.25. Installation of piston rings
      3.2.26. Installation of an intermediate shaft
      3.2.27. Installation of the crankshaft and check of gaps in radical bearings
      3.2.28. Installation of a back epiploon
      3.2.29. Installation of rods and pistons, check of gaps in shatunny bearings
      3.2.30. Engine start-up after repair and a running in
   + 3.3. Engine electric equipment
+ 4. Cooling system
+ 5. Heating and ventilation
+ 6. Fuel system
+ 7. Exhaust system
+ 8. Transmissions
+ 9. Coupling
+ 10. Brake system
+ 11. Running gear
+ 12. Body
+ 13. Electric equipment
+ 14. Good advice


3.2.18. Cleaning of the block of cylinders



Caps of channels of system of cooling are densely pressed in the block of cylinders.

1. Remove caps of channels of cooling of the block for what in blow on a small beard drive inside one of the parties of a cap and get a cap flat-nose pliers.
2. Carefully clear the block of the consolidation remains.
3. Remove covers with loose leaves, designate them and store separately.
4. Turn out carving caps of the block of cylinders (or drill, and then banish a carving).
5. At strong pollution of the block clean all channels a vapor jet and the compressed air (it is recommended to carry out in car-care center), wash out the block outside detergent. Banish all carving openings, clean and blow the compressed air. Dry the block and grease with veretenny oil to protect from corrosion.

6. Banish all carvings of the block of cylinders, having cleared thereby of dirt. Dry carving openings to exclude breakage of the block of cylinders at the expense of a hydraulic pressure at a bolt wraparound.
7. If the block is not so strongly polluted, it is possible to be limited to washing by soap solution. Irrespective of a way of cleaning very carefully wash out all internal lubricant channels and well dry. Walls of cylinders oil to prevent emergence of a rust.
8. Establish covers of radical bearings, bolts tighten by hand.

9. Press new caps without distortions, previously having greased them with hermetic. Wrap on non-drying hermetic new caps of oil channels. Densely tighten caps.