4.3.15. Replacement of a belt of a drive of the gas-distributing mechanism and its tension roller

According to the manufacturer recommendation it is necessary to replace a belt of a drive of the gas-distributing mechanism through each 40 000 km of run or each 4 years of operation (that will come earlier). Besides, replace a belt of a drive of the gas-distributing mechanism if at survey you find:

– oil traces on any surface of a belt;

– wear tracks of a gear surface, a crack, подрезы, folds and otsloyeny fabrics from rubber;

– cracks, folds, deepenings or cambers on an external surface of a belt;

– a razlokhmachivaniye or stratification on face surfaces of a belt.

Prevention With traces of engine oil on any its surface it is necessary to replace a belt, as oil quickly destroys rubber. On a belt (usually this violation of tightness of epiploons of cranked and distributive shaft) it is necessary to eliminate the reason of hit of oil immediately.

Note Work carry out on a viewing ditch, a platform or whenever possible on the lift.

It be required to you: keys «on 10», «on 13», «on 19», a big screw-driver.

1. Remove the air filter for simplification of access (see. «Removal and installation of the air filter»).

2. Remove the top cover of a drive of the gas-distributing mechanism (see. «Check and adjustment of a tension of a belt of a drive of the gas-distributing mechanism»).

3. Remove the right forward wheel.

4. Establish the piston of the 1st cylinder in the provision VMT of a step of compression (see. «Installation of the piston of the first cylinder in the provision VMT of a step of compression»).

5. Remove a belt of a drive of the pump of the hydraulic booster of a steering (see. «Replacement of a belt of a drive of the pump of the hydraulic booster of a steering»).

6. Remove a belt of a drive of the generator and the conditioner compressor (see. «Replacement of a belt of a drive of the generator and conditioner compressor»).

7. Remove from a cranked shaft a pulley of a drive of belts of the generator, the compressor of the conditioner and the pump of the hydraulic booster of a steering and the bottom cover of a drive of the gas-distributing mechanism (see. «Check and adjustment of a tension of a belt of a drive of the gas-distributing mechanism»).

8. A key «on 13» weaken an inhaling of two bolts of fastening of an arm of a tension roller.	9. Shift a tension roller against the stop to the left.

10. Remove a belt from a gear pulley of the water pump and a tension roller...	11.... and from gear pulleys of cranked and distributive shaft.

12. Finally turn out bolts of fastening of an arm of a tension roller and remove an arm assembled with a roller.

13. Check a condition of a tension roller. If it rotates with jammings, and in the bearing is found raised люфт, replace a roller.

Good advice Replace a tension roller of a belt of a drive of the gas-distributing mechanism at each replacement of a belt.

14. Establish a tension roller as it should be, the return to removal.

15. Check coincidence of adjusting labels of cranked and distributive shaft (see. «Installation of the piston of the first cylinder in the provision VMT of a step of compression»).

16. Put on a belt a gear pulley of a cranked shaft and on a pulley of the water pump. A back branch of a belt get for a tension roller and, pulling a forward branch, put on a belt a camshaft pulley.

17. Adjust a belt tension (see. «Check and adjustment of a tension of a belt of a drive of the gas-distributing mechanism»).

18. Screw in a shaft of a cranked shaft a bolt of fastening of a pulley and turn for a bolt a cranked shaft on two turns. Check coincidence of adjusting labels of cranked and distributive shaft. At discrepancy repeat belt installation.

19. Establish the removed details as it should be, the return to removal.

20. Adjust a tension of a belt of a drive of the pump of the hydraulic booster of a steering (see. «Check and adjustment of a tension of a belt of a drive of the pump of the hydraulic booster of a steering»).