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
 











2-7-2-proverka-i-regulirovka-gazoraspredelitelnogo-mekhanizma.html

2.7.2. Check and adjustment газораспределительного the mechanism

The gear pulley of a camshaft and pulley of a cranked shaft have on one operating label.
Marks of a pulley of a cranked shaft are on an underside of a pulley and have the form of the ground off tooth. Before installation of a gear belt a cranked shaft to turn until a label In, specified in fig. 83, it will not be combined with marks on a cover of a forward cuff. However at проворачивании a cranked shaft it is necessary to operate very cautiously that pistons have not hit about valves. Thus position of a camshaft which is still free at present is in addition regulated. Any of pistons should not be in ВМТ.
Marks on a camshaft pulley are presented in the form of a point which position should be verified in A.Pri's point проворачивании a camshaft it is necessary to avoid impact of valves and pistons.
At installation of a gear belt it is necessary to execute the following:
- To turn a cranked shaft before label position In;
- To turn a camshaft until the label And on lateral aspect of a pulley of a camshaft will not be combined with the marks specified in fig. 83. For проворачивания a camshaft to establish a face head in a bolt of a gear wheel of a camshaft and to turn a camshaft very slowly;

Fig. 83. Combination of labels on a pulley of a camshaft And and to a pulley of a cranked shaft In for adjustment газораспределительного the mechanism




- After combination of operating labels to establish a gear belt on the distributive pulleys, a leading pulley of the water pump and the tension device. If the former belt is established, to observe the direction of its rotation marked earlier.
At screwing up of a tension roller it is necessary to use fig. 84. Шлиц in a basic plate 1 it is necessary to establish over a fixing bolt 2;

Fig. 84. A tension of a gear belt: 1 — a basic plate; 2 — a bolt; 3 — the index




- To pull a gear belt, rotating a tension roller in a direction specified by an arrow. Thus into a roller it is inserted face шестигранный a key. The roller is turned until the index 3 will not be combined with a flute in a basic plate (an arrow on fig. 84);
- To tighten a nut of a tension roller the moment 20 Нм;
- To turn the engine on two complete revolutions and to check up combination of two operating labels at the moment of a finding of the piston of the first cylinder in ВМТ. Otherwise works it is necessary to make a fresh start, without forgetting, however, thus about possible impact of pistons and valves;
- To fix bolts the top and bottom parts of protective guards of a gear belt;
- To establish ременный a pulley of a cranked shaft and to tighten its bolt the moment 20 Нм;
- To establish and pull поликлиновой a belt as it is described in подразд. 4.3.3. After installation to fix bolts a belt casing;
- To check up the moment of ignition and in case of need to adjust it.

The note
The resulted description provides installation of a gear belt according to the instruction, and also its correct tension, however does not contain instructions by the principle of action of the semi-automatic adaptation established by the instruction for a tension of a gear belt.

It can be supervised as follows:
- After installation and a tension of a gear belt to turn a cranked shaft on two complete revolutions until the engine again does not leave in ВМТ;
- To press with effort a thumb a gear belt in a place specified in fig. by 85 arrow. Labels on a tension roller (the left arrow) should depart from each other every which way;

Fig. 85. Check of the device of a tension of a gear belt




- To clean a finger from a gear belt and to check up, whether the tension roller in initial position has come back.



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2.7.1. Removal and installation of a gear belt
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2.7.3. Removal and camshaft installation (on the established engine)