E39 series BMW 5

since 1996-2001 of release

Repair and car operation



E39 BMW
+ Introduction
+ Maintenance instruction
+ Current leaving and service
+ Engine
+ Systems of cooling, heating
- Power supply system and release
   + Power supply system
   + System of injection of the petrol engine
   - Power supply system of the diesel engine
      Turbokompressor
      System of a retsirkulyatsiya of the fulfilled gases (EGR system)
      Device of heating of the fuel filter
      Air removal from fuel system
      Check, removal and installation of the fuel locking valve
      Removal and installation of nozzles
      Check and adjustment of the moment of the beginning of injection
      Removal and installation of the inlet pipeline
   + System of production of the fulfilled gases
+ engine Electric equipment
+ Manual transmission
+ Automatic transmission
+ Coupling and power shafts
+ Brake system
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment
+ electric equipment Schemes
+ System of onboard diagnostics


Heavy Metal & Reflected


Removal and installation of nozzles

Damages of nozzles can lead to a detonation of the engine and damage of bearings. For troubleshooting of a nozzle it is necessary to unscrew one after another cap nuts of bringing pipelines of a high pressure. If at an otvorachivaniye of the next nut knock stops, the damaged nozzle is found. To check nozzles it is possible by means of the special device.

Signs of a faulty nozzle following:
   a) Absence of ignition of fuel in the cylinder.
   b) Knock in one or several cylinders.
   c) Engine overheat.
   d) Excessively dense black exhaust.
   e) Decrease in engine capacity. The increased fuel consumption.
   f) A dense dark blue exhaust at the cold engine.

 REMOVAL

1. Clear pipelines of injection by an autocleaner to exclude hit of pollution when opening system.

2. Remove the inlet pipeline, address to the Section Removal and installation of the inlet pipeline.

3. Disconnect топливопроводы a high pressure at nozzles and TNVD by means of a key (1), for example HAZET 4550. Address to an accompanying illustration.

Do not change a form of pipelines. Openings of nozzles and TNVD put on caps for protection against dirt hit.

4. If holders of pipelines act in film, previously mark their situation by a felt-tip pen. Address to an accompanying illustration.

5. Disconnect carefully drainage pipes from nozzles.

6. Remove nozzles by means of a head of 27 mm, for example HAZET 4555-1. Nozzles are protected from below by caps.

Watch that nozzles did not fall. Besides, at a nozzle of the 4th cylinder disconnect a cable of the built-in sensor of the beginning of injection. All nozzles establish on the former places.

7. Take out heat-shielding laying.


 INSTALLATION

1. Heat-shielding laying of nozzles is always established the new. Deepening of laying should look upward. The arrow on an illustration shows towards a head of cylinders.

2. Screw nozzles and fix their moment offered by Specifications.

3. Fix pipelines the demanded moment.

4. Put on drainage hoses.

5. Attach a cable of the sensor of the beginning of supply of fuel to a nozzle of the 4th cylinder.

6. According to markings fix brackets if they acted in film.

7. Establish a vacuum hose of the amplifier of a brake at the holder of a head of cylinders.

8. Establish the inlet pipeline, address to the Section Removal and installation of the inlet pipeline.

9. Start the engine and check tightness of fuel system.