VW Passat repair


+ 1. Ekspluatatsiiya of the car
+ 2. Maintenance
- 3. Engines
   - 3.1. Petrol engines of configuration of R4
      3.1.1. Technical characteristics
      3.1.2. General information
      3.1.3. Compression definition in cylinders
      3.1.4. Gear belt of a drive of the gas-distributing mechanism
      3.1.5. Camshaft and pushers
      3.1.6. Removal and installation of a head of the block of cylinders
      3.1.7. Repair of a head of the block of cylinders
      3.1.8. Flywheel
      3.1.9. Intermediate shaft
      3.1.10. Oil pallet
      3.1.11. Replacement of epiploons of a cranked shaft
      3.1.12. Oil pump
      3.1.13. Pistons and rods
      3.1.14. Removal and engine installation
      3.1.15. Engine dismantling
      3.1.16. Fault detection of the block of cylinders and cranked shaft
      3.1.17. Engine assembly
      3.1.18. Engine start-up after major maintenance
   + 3.2. Petrol engine of configuration of VR6
   + 3.3. Diesel engines
+ 4. Cooling system
+ 5. Power supply system
+ 6. Ignition system
+ 7. Coupling
+ 8. Transmission
+ 9. Drive of forward wheels
+ 10. Suspension brackets
+ 11. Steering
+ 12. Brake system
+ 13. Wheels and tires
+ 14. Systems of heating, ventilation and conditioning
+ 15. Electric equipment
+ 16. Body
+ 17. Electric circuits


Repair B3-B4/Passat B3-B4 Volkswagen Passat>> Engines>> Petrol engines of configuration of R4>> General information
Engines of liquid cooling, ryadny four-cylinder, with one (SOHC) or two (DOHC) the camshafts located in a head of the block of cylinders, are established cross-section in a forward part of the car. The cranked shaft has five radical bearings. In the central radical bearing persistent half rings by which it is regulated axial люфт a cranked shaft are located. The camshaft is given by a gear belt from a cogwheel of a cranked shaft. The gear belt rotates also intermediate shaft of a drive of the distributor of ignition, the oil pump and on carburetor engines of the fuel pump. Cams of a camshaft press on valves through hydraulic pushers which automatically compensate thermal gaps of valves. On DOHC engines from a cranked shaft by means of a gear belt the camshaft of final valves from which in turn by means of chain transfer the camshaft of inlet valves is given is given. The oil pump of shesterenchaty type, is established in the engine pallet.
Without removal of the engine from the car it is possible to perform the following works:
— compression check in cylinders;
— removal and installation of a cover of a head of the block of cylinders;
— removal and installation of a head of the block of cylinders;
— removal and installation of a pulley and cogwheel of a cranked shaft;
— replacement of cuffs of a cranked shaft;
— removal and installation of a belt of a drive of GRM;
— replacement of the oil filter;
— removal and installation of the oil pump;
— removal and installation of the oil pallet;
— removal and flywheel installation;

Fig. 3.1. Support of fastening of the power unit: I\the back right; II\the back left;
III\lobby; 1-7-bolts.


— replacement of support of the power unit (engine, coupling and transmission assembled) (fig. 3.1) .
For removal of intermediate and cranked shaft it is necessary to dismantle previously the engine from the car.