db57d230

2.1.2. Gear belt

1 – bolt, 20–27 N • m;
2 – tension mechanism spring;
3 – roller of a tension of a gear belt;
4 – free party of a gear belt;
5 – bolt, 80–100 N • m;
6 – camshaft pulley;
7 – adjusting pin;
8 - party of a tension of a gear belt;
9 – an adjusting tag (index) on a forward cover;
10 – an adjusting tag on a pulley of a bent shaft;
11 - pulley of a bent shaft.

Removal

PERFORMANCE ORDER
1. Weaken a bolt of fastening of a pulley of the water pump.
2. Weaken a bolt of fastening of the generator.
3. Remove a pulley of the water pump and a belt.
4. Remove a pulley of a bent shaft.
5. Remove a casing of a gear belt.
6. Move a roller of a tension of a gear belt to the water pump and temporarily enshrine it in this provision.
7. Turn out a bolt of fastening of a pulley of the camshaft.
8. Remove a camshaft pulley.
9. Take off a gear belt.

Prevention

Note the direction of rotation of a gear belt for repeated installation it in initial situation.


10. Turn out a bolt of fastening of a pulley of a bent shaft. Remove a pulley of a bent shaft and the plug.
11. Shoot a video of the mechanism of a tension of a gear belt.

Check

Prevention

Strongly do not bend a gear belt and do not change the direction of its rotation. Do not allow oil and lubricant to contact with a gear belt as it will lead to its destruction.


PERFORMANCE ORDER
1. Check a gear belt for absence of damage, wear, stratification, cracks on teeths and in the basis of teeths, and also for defects at end faces and a reverse side of a belt.
2. With the following defects replace a gear belt.

Description
Defect
1. The rigid return surface gear a remnyapoverkhnost has a glossy appearance. Rigidity of a surface such is that the nail does not leave marks on a belt
2. Cracks on the return surface of a gear belt
3. Cracks or stratification of a gear belt
4. Strongly worn-out a zubyaiznoshena side of tooth, at the same time fibers, a cord and the rubber basis become visible
5. Teeths (the last stage) are strongly worn-out the side of tooth Is worn-out, at the same time attritions become visible and tooth thickness is reduced
6. Cracks in the basis of teeths
7. Lack of tooth
8. Strong wear of one party of a belt  
9. Cracks on lateral face of a gear belt  

Pulleys and roller of the mechanism of a tension of a gear belt

PERFORMANCE ORDER
1. Check pulleys of distributive and cranked shaft, a roller of the mechanism of a tension and a single pulley for lack of uneven wear, cracks and damages.
2. Check ease and smoothness of rotation of a roller of the mechanism of a tension and single pulley, and also lack of extraneous noise at rotation.

Installation of the mechanism of a tension of a gear belt

PERFORMANCE ORDER
1. Temporarily enshrine the mechanism of a tension of a gear belt in the taken-away provision as it is possible closer to the water pump.
2. After installation of the mechanism of a tension adjusting tags on pulleys of distributive and cranked shaft have to be combined with indexes.
Turn a bent shaft of the engine so that the piston of the first cylinder was installed in VMT in a compression step.

PERFORMANCE ORDER

Prevention

Make sure that the plug is installed correctly, at the same time the facet has to be from the forward party of the engine.


1. At installation of a pulley of the camshaft the adjusting pin has to enter a pulley opening.
2. Establish a gear belt so that to exclude its sagging from a tension.

Installation

PERFORMANCE ORDER
1. Install the plug and a pulley of a bent shaft as shown in the drawing. Pay attention to the direction of their installation.

Inhaling moment: 140–150 N • m

2. Establish a pulley of the camshaft and fix by a bolt, having tightened it the required moment.

Inhaling moment: 80–100 N • m

3. Combine adjusting tags on pulleys of distributive and cranked shaft with indexes, at the same time the piston of the first cylinder has to be installed in VMT in a compression step.
4. At installation of the mechanism of a tension of a gear belt first of all install the tension mechanism, a spring and the expansion plug. Temporarily tighten bolts. Then, temporarily squeeze the tension mechanism, having inserted a bolt into the extended opening. Establish the back end of a flat spring opposite to a forward cover, as shown in the drawing.
5. Fix the tension mechanism which is taken away to the water pump.
6. Establish a gear belt on a pulley of a bent shaft.
7. Establish a gear belt on a camshaft pulley, at the same time be convinced that its sagging from a tension is excluded.
8. Weaken bolts 1 and 2 fastenings of the mechanism of a tension in the sequence shown in the drawing, at the same time the spring of the mechanism of a tension of a gear belt will be unclenched.
9. Tighten bolts 1 and 2 fastenings of the mechanism of a tension in the same order.
10. Turn clockwise a bent shaft of the engine on two whole revolutions and combine a tag on a pulley of a gear belt of a bent shaft with the index on the block of cylinders of the engine. Check that a tag on a pulley of the camshaft were combined with the index on a cover of a head of cylinders.

Prevention

Do not turn a bent shaft of the engine counterclockwise.


11. In the same order weaken bolts 1 and 2 fastenings of the mechanism of a tension of a gear belt.
12. Tighten bolts 1 and 2 fastenings of the mechanism of a tension in the same order.

Inhaling moment: 20–27 N • m

13. Repeatedly check a tension of a gear belt. When pressing the tense branch of a gear belt with effort of 49 N the gear belt has to cave in to the center of a head of a bolt of fastening of the mechanism of a tension.
14. Establish casings of a gear belt.

Inhaling moment: 10–12 N • m
15. Establish a pulley of a bent shaft.
16. Establish poliklinovy a belt of the drive of the fan and adjust its tension.
17. Establish a pulley of the water pump.
18. Establish poliklinovy a belt and adjust its tension.