Volkswagen Polo 3 with 1994 for 2001 of release.
1. The general data
2. The engine
2.1. Removal and engine installation
2.2. Dismantling and engine assemblage
2.3. A head of the block of cylinders and valves
2.4. Pistons and rods
2.5. The block of cylinders
2.6. A cranked shaft and radical bearings
2.7. A drive газораспределительного the mechanism
2.7.1. Removal and installation of a gear belt
2.7.2. Check and adjustment газораспределительного the mechanism
2.7.3. Removal and camshaft installation (on the established engine)
2.8. System of release of the fulfilled gases (ОГ)
3. Greasing system
4. Cooling system
5. Systems of injection of fuel
6. Ignition system
7. Coupling
8. A mechanical transmission
9. A drive of wheels
10. A steering without the amplifier
11. A steering with the hydraulic amplifier
12. A forward suspension bracket
13. A back suspension bracket
14. Brake system
15. An electric equipment
16. Heating and ventilation system
17. An automatic transmission
18. Appendices


2.7. A drive газораспределительного the mechanism

The camshaft located from above is put in action by means of the gear belt established on gear pulleys of a camshaft, to a pulley of a cranked shaft and the water pump. Mechanism details timing are shown on fig. 25. Apparently from drawing, the gear belt is completely closed. The one to whom engines of old models Polo are familiar, knows that the tension of a gear belt was regulated by displacement of the water pump. Now the gear belt has received the own tension device.

Fig. 25. Details on the face party of the engine: 1 — the top casing of a gear belt; 2 — a gear belt; 3 — bolts, 20 Нм; 4 — a protective casing of a gear belt for a pump pulley; 5 — a bolt, 80 Нм; 6 — a gear pulley of a camshaft; 7, 8 — bolts, 10 Нм; 9 — a casing of a gear belt (inside); 10 — a sealing ring of round section; 11 — the water pump; 12 — the device of a tension of a belt; 13 — a nut, 20 Нм; 14 — the assembly console; 15 — a gear pulley of a cranked shaft; 16 — a bolt, 40 Нм + 90 ; 17 — a pulley of a cranked shaft; 18 — a bolt, 20 Нм; 19 — поликлиновой a belt; 20 — a bolt, 90 Нм + 120 ; 21 — the bottom casing of a gear belt

Installation of a gear cranked shaft is necessary for carrying out as follows:
- For pulley fixing in a trailer neck of a cranked shaft there is шпоночная a flute;
- On an inside of a distributive gear wheel is шпонка. If the belt is not damaged, term of its service of 100 000 km.
The belt should be regulated at its removal or replacement. If the dismantled belt is planned for using again it should not contact to plastic lubricant and oil.
The belt cannot be bent, as on it there will be breaks.

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2.6.5. A flywheel
On the following page
2.7.1. Removal and installation of a gear belt