Mazda 3 since 2003
1. Operation and maintenance of the car
2. Engine
2.1. General description of new engines of the L8, LF and L3 models
2.1.1. Mechanical part of engines
2.1.1.1. Cover of a head of the block of cylinders
2.1.1.2. Head of the block of cylinders
2.1.1.3. Laying of a head of the block of cylinders
2.1.1.4. Block of cylinders
2.1.1.5. Bent shaft and radical bearing
2.1.1.6. Balancing block
2.1.1.7. Principle of operation of the balancing block
2.1.1.8. Damper of tortional fluctuations of a bent shaft
2.1.1.9. Forward cover of the engine
2.1.1.10. Piston
2.1.1.11. Piston rings and piston finger
2.1.1.12. Rod and conrod bearing
2.1.1.13. The valvate mechanism – general information
2.1.1.14. Camshaft
2.1.1.15. Camshaft asterisk
2.1.1.16. Asterisk of a bent shaft
2.1.1.17. Gas distribution mechanism drive chain
2.1.1.18. Natyazhitel of a gas distribution mechanism drive chain
2.1.1.19. The valve, a valvate spring, a maslootrazhatelny cap, the directing valve plug
2.1.1.20. Valve pusher
2.1.2. Mechanism of change of phases of gas distribution
2.1.3. Lubrication system
2.1.4. Cooling system
2.1.5. Fuel system
2.1.6. System of production of the fulfilled gases and system of decrease in toxicity
2.1.7. Electric equipment of engines
2.2. Mechanical part of engines
2.3. Appendix 1
2.4. Appendix 2
2.5. Appendix 3
2.6. The Z6 engine – a mechanical part
2.7. Lubrication system
2.8. Cooling system
2.9. System of an admission
2.10. Fuel system
2.11. System of production of the fulfilled gases and system of decrease in toxicity
2.12. System of ignition
2.13. Control system
2.14. Tables
3. Transmission
4. Running gear
5. Steering mechanism
6. Brake system
7. Onboard electric equipment
8. Body
 








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2-1-1-19-klapan-klapannaya-pruzhina-maslootrazhatelnyjj-kolpachok-napravlyayushhaya-vtulka-klapana.html

2.1.1.19. The valve, a valvate spring, a maslootrazhatelny cap, the directing valve plug

Fig. 2.27. Valve components: 1 – valve cracker; 2 – top plate of a valve spring; 3 – valvate spring; 4 – maslootrazhatelny kopachok; 5 – the directing valve plug; 6 – valve


Valves are manufactured of heat resisting steel. Each cylinder has two inlet and two final valves. Inlet and final valves have the nitridden surfaces for increase in resistance to attrition. A valvate spring – variable outer diameter. characteristics of a spring are improved due to reduction of the size of the top saddle. The directing plug of the valve is manufactured of the alloyed alloy for increase in resistance to attrition. The saddle of the valve is combined with the lower saddle of a valvate spring to simplify knot and to improve its maintainability (fig. 2.27).

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2.1.1.18. Natyazhitel of a gas distribution mechanism drive chain
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2.1.1.20. Valve pusher