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>> Gear belt of a drive of GRM
Removal of a gear belt of a drive of GRM is carried out in the following order:
– disconnect the contact socket from the electromagnetic valve останова the engine;
– remove the case of the air filter;
– remove a vekhny casing of the engine (AFN engine);

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 metal spring brackets and plastic percussion caps or bolts 9 (fig. 3.64) of fastening of the top cover of a drive of GRM and remove the top cover 10 or 20;
– remove a belt of a drive of auxiliary units;
– unscrew bolts of fastening of a pulley of the water pump and remove a pulley;
– establish the cylinder No. 1 piston in VMT of a step of compression (see подразд. 3.3.3);
– unscrew bolts of 4 fastenings of a pulley of a cranked shaft and remove a pulley 2;
– unscrew bolts of fastening and remove brackets of fastening of the bottom cover of 1 or 19th drive of GRM.
AAZ engine:

Fig. 3.63. Latching of a pulley of TNVD: 1–a stopping core; 2–gear pulley of TNVD; 3–forward arm of fastening of TNVD


– check reliability of fixing of a pulley of TNVD a stopping core 1 (see fig. 3.63 );
– unscrew external bolts of fastening of a pulley of TNVD on a half of turn;

       PREVENTION
Do not turn on the central bolt of a pulley of TNVD as it will change installation of the moment of injection of fuel.

– weaken a tension of a gear belt 6 (see fig. 3.64 ) GRM drive, having unscrewed a bolt of the 8th fastening of a tension roller.
Other engines:
– unscrew a bolt of the 8th fastening of a tension roller and remove a tension roller 7 gear belts of a drive of GRM.
All engines:
– note a marker the direction of movement of a gear belt 6 of a drive of GRM in case it will repeatedly establish;
– remove a gear belt 6 of a drive of GRM.
After removal examine a gear belt. In the presence of wear, stratification and other damages it is necessary to replace a belt. In the presence of engine oil on a belt it is necessary to find a place of leak and to eliminate this leak.
Installation of a gear belt of a drive of GRM is carried out in the following order:

Fig. 3.65. Removal of a gear pulley from an adjusting cone of a camshaft: 1–bolt of fastening of a gear pulley of a camshaft; 2–gear pulley of a camshaft; 3–drift


– weaken a bolt 1 (fig. 3.65) of fastening of a gear pulley of a camshaft on a turn half;
– remove a gear pulley 2 camshafts from an adjusting cone of a camshaft 4, by means of a drift passed through an opening in a back cover of a drive of GRM;
– establish a gear belt 6 (see fig. 3.64 ) on a gear pulley 18 cranked shaft, a gear pulley of 15 TNVD and a gear pulley 2 (see fig. 3.65 ) a camshaft;
– establish a gear belt 6 the flat party on a pulley 16 intermediate shaft and a tension roller 7.
All engines, except AAZ
– establish directing roller of a gear belt on a back cover of a drive of GRM and tighten a bolt of its fastening;
AAZ engine
– tighten external bolts of fastening of a gear pulley of TNVD;
All engines:
– remove stopping core 1 (see fig. 3.63 ) TNVD pulley;
– be convinced that the right leading branch of a gear belt of a drive GRM passing through pulleys of TNVD and an intermediate shaft, is tense, and the conducted branch of a belt from a tension roller — sags;
– pull a gear belt of a drive of GRM povroty a tension roller clockwise and tighten a bolt of fastening of a tension roller or on the engine with the semi-automatic mechanism of a tension of a gear belt turn a tension roller 7 before combination of labels 8 on a roller and a nave of the mechanism of a tension;
– check a tension of a gear belt, having turned its branch between gear pulleys of a camshaft and TNVD. The belt should turn on a corner 90 °. If it turns on a smaller corner, it is necessary to weaken its tension if on bigger — to pull a belt;
– tighten a bolt of fastening of a gear pulley of a camshaft the moment of 45 N · m;

Fig. 3.62. Adaptation installation for camshaft latching: 1–the adaptation for camshaft latching; 2–camshaft


– remove the adaptation 1 (see fig. 3.62 ) for camshaft latching;

Fig. 3.61. Combination of adjusting labels of a flywheel and coupling case


Fig. 3.5. Provision of adjusting labels of a gear pulley of a camshaft of the SOHC engines, corresponding VMT of the piston of the first cylinder: 1–head of the block of cylinders; 2–gear pulley; 3–cover of a head of the block; And – an adjusting label


Fig. 3.67. Combination of labels on a gear pulley and an arm of fastening of TNVD


– check combination of all adjusting labels: a flywheel (see fig. 3.61 ), a gear pulley of a camshaft (see fig. 3.5 ) and a gear pulley of TNVD (fig. 3.67) ;
– turn a cranked shaft on two complete revolutions clockwise and repeatedly establish the cylinder No. 1 piston in VMT of a step of compression, be convinced that the stopping core 1 (see fig. 3.63 ) can be freely established in an opening of a gear pulley of TNVD;
– check and adjust if necessary a tension of a gear belt of a drive of GRM;
– establish bottom 1 or 19 (see fig. 3.64 ) and the top 10 or 20th covers of a drive of GRM;
– establish a pulley of the water pump and tighten bolts of its fastening;
– establish a pulley 2 cranked shaft and tighten bolts of its 4 fastenings;
– establish a belt 3 drives of auxiliary units and adjust its tension;
– connect the contact socket of the electromagnetic valve останова the engine;
– check installation of the moment of injection of fuel.







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