Service, the device and repair the Volkswagen Passat B3-B4 - 3.3.6. The mechanism of a tension of a gear belt

VW Passat repair

+ 1. Ekspluatatsiiya of the car
+ 2. Maintenance
- 3. Engines
   + 3.1. Petrol engines of configuration R4
   + 3.2. Petrol engine of configuration of VR6
   - 3.3. Diesel engines
      3.3.1. Technical characteristics
      3.3.2. General information
      3.3.3. Installation of the piston of the cylinder No. 1 in VMT
      3.3.4. Check of a compression in cylinders
      3.3.5. Gear belt of the GRM drive
      3.3.6. Mechanism of a tension of a gear belt
      3.3.7. Cogged pulley of the camshaft
      3.3.8. Cogged pulley of a bent shaft
      3.3.9. Pulley of an intermediate shaft
      3.3.10. Belts of the drive of auxiliary units
      3.3.11. Cover of a head of the block of cylinders
      3.3.12. Replacement of an epiploon of the camshaft
      3.3.13. Replacement of an epiploon of an intermediate shaft
      3.3.14. Replacement of epiploons of a bent shaft
      3.3.15. Replacement of an epiploon of a forward cover of a bent shaft
      3.3.16. Head of the block of cylinders
      3.3.17. Check of work of hydraulic pushers
      3.3.18. Flywheel
      3.3.19. Replacement of support of the power unit
      3.3.20. Oil case
      3.3.21. Oil pump
      3.3.22. Top casing of the AFN engine
      3.3.23. System of prestarting heating of diesel engines
      3.3.24. Glow plugs
+ 4. Cooling system
+ 5. Power supply system
+ 6. System of ignition
+ 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 Volkswagen Passat B3-B4/Passat B3-B4>> Engines>> Diesel engines>> Mechanism of a tension of a gear belt

Removal of the mechanism of a tension of a gear belt is carried out in the following sequence:

– remove the contact socket of the electromagnetic valve of a stop of the engine;

– take off a belt of the drive of auxiliary units;

– install the piston of the cylinder No. 1 in compression step VMT (see subsection 3.3.3);

Fig. 3.64. GRM drive details: 1 – lower cover of the GRM drive; 2 – pulley of a bent shaft; 3 – belt of the drive of auxiliary units; 4 – bolt of fastening of a pulley of a bent shaft; 5 – bolt of fastening of the cogged pulley of a bent shaft; 6 – gear belt of the GRM drive; 7 – tension roller of a gear belt of the GRM drive; 8 – bolt of fastening of a tension roller; 9 – bolts of fastening of the top cover of the GRM drive; 10 – top cover of the GRM drive; 11 – back cover of the GRM drive; 12 – back arm of fastening of TNVD; 13 – TNVD; 14 – forward arm of fastening of TNVD; 15 – TNVD cogged pulley; 16 – pulley of an intermediate shaft; 17 – bolt of fastening of a pulley of an intermediate shaft; 18 – cogged pulley of a bent shaft; 19 – the lower cover of the GRM drive (for completely closed drive); 20 – the top cover of the GRM drive (for completely closed drive); 21 – a back cover of the GRM drive (for completely closed drive)

– remove top 10 or 20 (see fig. 3.64 ) and lower the 1 or 19 GRM drive covers;

Fig. 3.66. Tension of a gear belt of the GRM drive: 1 – cogged pulley of the camshaft; 2 – gear belt of the GRM drive; 3 – the directing roller of a gear belt of the GRM drive; 4 – TNVD cogged pulley; 5 – pulley of an intermediate shaft; 6 – mechanism of a tension of a gear belt of the GRM drive; 7 – tension roller of a gear belt of the GRM drive; 8 – tags; 9 – nut of fastening of a nave of a roller of the mechanism of a tension; 10 – radial key

– weaken a nut 9 (see fig. 3.66 ) fastenings of a nave of a roller of the mechanism of a tension, at the same time the clown of the mechanism of a tension will turn counterclockwise, and the tension of a gear belt will decrease;

– turn off a nut 9 and remove the mechanism 6 of a tension of a gear belt of the GRM drive.

Installation of the mechanism of a tension of a gear belt is carried out in the sequence of the return to removal. After installation it is necessary to adjust a belt tension.

On engines with the semi-automatic mechanism of a tension of a gear belt for check of its tension press the top part of the conducted branch of a gear belt at a camshaft pulley. At the same time the tag 8 (see fig. 3.66 ) on a roller of the 7th mechanism of a tension has to deviate a tag on a tension mechanism nave. At an otpuskaniye of a gear belt of a tag have to be combined again.