Chevrolet Lanos (since 2004 of release)
1. The car device
2. Recommendations about operation
3. Malfunctions in a way
4. Maintenance service
5. The engine
5.1. Features of a design
5.2. Compression check in cylinders
5.3. Removal and installation of mudguards of the engine
5.4. Replacement of support of a suspension bracket of the power unit
5.5. Installation of the piston of the first cylinder in position ВМТ of a step of compression
5.6. Removal, installation and дефектовка a flywheel
5.7. Replacement of details of consolidation of the engine
5.8. A head of the block of cylinders
5.8.1. Removal, дефектовка and camshaft installation
5.8.2. Replacement of hydrojacks of backlashes in the mechanism of a drive of valves
5.8.3. Possible malfunctions of hydrojacks of backlashes in the mechanism of a drive of valves, their reasons and ways of elimination
5.8.4. Dismantling, repair and assemblage of a head of the block of cylinders
5.8.5. Grinding in of valves
5.9. Removal and engine installation
5.10. Engine repair
5.11. Greasing system
5.12. Cooling system
5.13. System of release of the fulfilled gases
5.14. The engine power supply system
5.15. System of catching of steams of fuel
5.16. System рециркуляции the fulfilled gases
6. Transmission
7. A running gear
8. A steering
9. Brake system
10. An electric equipment
11. A body
12. Wheels and tyres
13. Purchase of spare parts
14. A trip on HUNDRED
15. Winter operation of the car
16. Preparation for checkup
17. Councils to the beginning mechanic
18. Appendices
19. Electric equipment schemes
 








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5.8.1. Removal, дефектовка and camshaft installation

The camshaft is established in the separate case fixed on a head of the block of cylinders by the same bolts, as a head on the block. Therefore for camshaft replacement it is required to turn out these bolts and to remove from a head of the block the camshaft case.
It be required to you: the same tools, as for removal of a belt of a drive газораспределительного the mechanism (Replacement and adjustment of a tension of a belt of a drive газораспределительного the mechanism see «and replacement of its tension roller»), a back cover of a drive газораспределительного the mechanism (Removal and installation of the oil pump »see«), a cover of a head of the block of cylinders («Replacement of a lining of a cover of a head of the block of cylinders» see), and also a face head «on 13», keys «on 12», «on 14», «on 19», динамометрический a key.
1. Establish the piston of the first cylinder in position ВМТ of a step of compression (Installation of the piston of the first cylinder in position ВМТ of a step of compression »see«).
3. Turn out three bolts of fastening of an arm of the coil of ignition to the camshaft case …
4. … also remove an arm.

    
THE NOTE
Under an arm of fastening of the coil of ignition the rubber sealing ring is established. Strongly pressed out, hardened or torn ring replace.

5. Loosen the a collar of fastening of a bringing hose of system of ventilation картера the engine …
6. … also disconnect a hose from a branch pipe of the case of a camshaft.
7. Uncover heads of the block of cylinders («Replacement of a lining of a cover of a head of the block of cylinders» see).
8. Loosen the an inhaling of two bolts of fastening of a persistent flange of a camshaft.
9. Loosen the a tension also remove a drive belt газораспределительного the mechanism from a gear pulley of a camshaft (Replacement and adjustment of a tension of a belt of a drive газораспределительного the mechanism and replacement of its tension roller »see«).
10. Remove a gear pulley of a camshaft («Replacement of an epiploon of a camshaft» see).
11. Remove a back cover of a drive газораспределительного the mechanism (Removal and installation of the oil pump »see«).

Fig. 5.4. Sequence of an inhaling of bolts of fastening of a head of the block of cylinders

12. Turn out ten bolts of fastening of a head of the block of cylinders to the block in sequence, return shown on fig. 5.4, in three steps: turn out bolts on a half-turn, turn out bolts for a half-turn, definitively turn out bolts.

    
THE PREVENTION
Bolts of fastening of a head of the block of cylinders it is possible to turn on only on the cold engine.

13. Take bolts and remove the camshaft case.
14. Turn out definitively two bolts of fastening of a persistent flange of a camshaft, shift a camshaft back and remove a flange.
15. Take out a camshaft from the case, shifting it back.

    
THE PREVENTION
At extraction of a camshaft from the case be cautious: do not damage sharp edges of cams of a surface of support under camshaft necks.

16. Examine a camshaft. On шпоночной to a flute and a carving on a shaft sock there should not be damages and deterioration, and in проточке under a persistent flange — traces of excessive deterioration and забоин. Surfaces of basic necks and cams should be well polished, without damages. If there are traces of jammings, an overheat, deep risks or steps from deterioration, replace a shaft.

    
THE PREVENTION
Polishing of cams of a camshaft for elimination of step deterioration is forbidden, as at change of the sizes of a profile of cams phases timing will be broken.

17. Measure diameters of basic necks of camshafts and their bearings, calculate backlashes in bearings of the shaft, defined by a difference between diameters of their bearings in a head of cylinders and diameters of necks (tab. 5.1). At the deterioration exceeding admissible, replace a camshaft as repolishing of necks for the repair size is not provided.

Table 5.1 Maximum permissible diameters of necks and backlashes in camshaft bearings

18. Establish a camshaft extreme necks on two prisms placed on a testing plate, and measure by the indicator palpation of average necks. At palpation more than 0,02 mm or несоосности necks replace a shaft as its editing is not supposed.

    
THE PREVENTION
At installation of a new camshaft levers of valves replace new. Before the first start-up of the engine and for improvement of conditions extra earnings are recommended to be added in engine oil противозадирную an antifrictional additive.

19. Establish the camshaft greased with engine oil in its case and fix a persistent flange.
20. Establish the camshaft case on a head of the block of cylinders and fix the case and a block head on the block of cylinders («Replacement of a lining of a head of the block of cylinders» see, with. 79).

    
NOTES
Lining of a head of the block of cylinders necessarily replace new.
Before installation put hermetic on all surface привалочной to a surface of the case of a camshaft to a head of the block of cylinders.

21. Establish a back cover of a drive газораспределительного the mechanism, a gear pulley of a camshaft and a drive belt газораспределительного the mechanism (Removal and installation of the oil pump »see«).
22. Adjust a tension of a belt of a drive газораспределительного the mechanism (Replacement and adjustment of a tension of a belt of a drive газораспределительного the mechanism and replacement of its tension roller »see«).
23. Establish all earlier removed details in an order, the return to removal.
24. Adjust a tension of belts of a drive of the generator and the pump of the hydraulic booster of a steering (Check and adjustment of a tension of a belt of a drive of the generator and the pump of the hydraulic booster of a steering »see«), and also the conditioner compressor (Check and adjustment of a tension of a belt of a drive of the compressor of the conditioner »see«).

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5.8. A head of the block of cylinders
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5.8.2. Replacement of hydrojacks of backlashes in the mechanism of a drive of valves











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