VW Passat repair


+ 1. Ekspluatatsiiya of the car
+ 2. Maintenance
- 3. Engines
   + 3.1. Petrol engines of configuration of 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. Compression check in cylinders
      3.3.5. Gear belt of a drive of GRM
      3.3.6. Mechanism of a tension of a gear belt
      3.3.7. Gear pulley of a camshaft
      3.3.8. Gear pulley of a cranked shaft
      3.3.9. Pulley of an intermediate shaft
      3.3.10. Belts of a drive of auxiliary units
      3.3.11. Cover of a head of the block of cylinders
      3.3.12. Replacement of an epiploon of a camshaft
      3.3.13. Replacement of an epiploon of an intermediate shaft
      3.3.14. Replacement of epiploons of a cranked shaft
      3.3.15. Replacement of an epiploon of a forward cover of a cranked 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. 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>> 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 останова the engine;
– remove a belt of a drive of auxiliary units;
– establish the cylinder No. 1 piston in VMT of a step of compression (see подразд. 3.3.3);

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


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

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


– weaken a nut 9 (see fig. 3.66 ) fastenings of a nave of a roller of the mechanism of a tension, thus the clown of the mechanism of a tension will turn counter-clockwise, and the tension of a gear belt will decrease;
– unscrew a nut 9 and remove the mechanism 6 of a tension of a gear belt of a drive of GRM.
Installation of the mechanism of a tension of a gear belt is carried out in sequence of 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 a conducted branch of a gear belt at a camshaft pulley. Thus the label 8 (see fig. 3.66 ) on a roller of the 7th mechanism of a tension should deviate a label on a nave of the mechanism of a tension. At an otpuskaniye of a gear belt of a label should be combined again.








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