BMW 3 Series E30

since 1983-1994 release

Repair and operation of the car

+ 1. Maintenance instruction
+ 2. Maintenance
- 3. Engine
   - 3.1.2. Specifications
      3.1.3. Types of the repair work performed without dismantle of the engine
      3.1.4. Order of installation of the piston of the 1st cylinder in compression step VMT
      3.1.5. Cover of a head of cylinders
      3.1.6. The soaking-up collector
      3.1.7. Final collector
      3.1.8. Cam-shaft drive chain covers (M10 engine)
      3.1.9. Chain and asterisks (M10 engine)
      3.1.10. Covers of a gear belt (M20 and M40 engines)
      3.1.11. Gear belt and asterisks of a cam-shaft (M20 and M40 engines)
      3.1.12. Forward epiploons
      3.1.13. Head of cylinders
      3.1.14. Pallet
      3.1.15. Oil pump
      3.1.16. Flywheel (drive plate)
      3.1.17. Back epiploon of the crankshaft
      3.1.18. Engine mount details
   + 3.2. Dismantle and capital repairs of the engine
   + 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. Useful tips


3.1.3. Types of the repair work performed without dismantle of the engine


Without dismantle it is possible to replace laying of the soaking-up and final collectors, laying of the oil pallet, head of the block of cylinders, epiploons of a bent shaft.

It is possible to remove such units as the soaking-up and final collectors, oil pallet, oil pump, pump of cooling liquid, starter, generator, distributor of ignition, gas distribution mechanism detail, units of fuel system and a head of the block of cylinders.

In extreme cases when there is no necessary equipment, without removal of the engine it is possible to replace piston rings, pistons, rods and connecting rods. However, it is not recommended to perform these works without dismantle and full dismantling of the engine extremely as cleaning of the accompanying details, and also holding preparatory activities on assembly are required.

It should be noted that on engines except M40 it is expedient to gas distribution mechanism detail to remove after dismantle of a head of cylinders. The cam-shaft of the M40 engine is removed without dismantle of a head after removal of covers of basic necks.