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
2.2. Mechanical part of engines
2.2.1. Engines of the L8 and LF models
2.2.2. Verification of the contents of CO/CH in the fulfilled gases
2.2.3. Measurement of a compression in engine cylinders
2.2.4. Check of a belt of the drive of auxiliary units
2.2.5. General information and safety measures at removal of the power unit
2.2.6. Removal of sealant
2.2.7. Removal and installation of the power unit
2.2.8. Check of the executive mechanism of change of phases of gas distribution (L3)
2.2.9. Removal and installation of the executive mechanism of change of phases of gas distribution (L3)
2.2.10. Gas distribution mechanism drive chain
2.2.11. Removal and installation of the operating oil valve (OCV) (L3)
2.2.12. Check of the operating oil valve (OCV) (L3)
2.2.13. Check of operation of the spool-type valve (OCV) (L3)
2.2.14. The general repair operations on the power unit
2.2.15. Check of a head of the block of cylinders
2.2.15.1. Check of the directing valve plug
2.2.15.2. Measurement of length of the valve
2.2.15.3. Measurement of diameter of a core of the valve
2.2.15.4. Measurement of internal diameter of the directing valve plug
2.2.15.5. Measurement of height of a vystupaniye of the directing valve plug
2.2.15.6. Replacement of the directing valve plug
2.2.15.7. A press fitting of the directing valve plug
2.2.15.8. Check and repair of a saddle of the valve
2.2.15.9. Check of a valvate spring
2.2.15.10. Check of a cam-shaft
2.2.15.11. Measurement of diameter of a neck of a cam-shaft
2.2.15.12. Measurement of a radial gap of a neck of a cam-shaft
2.2.15.13. Measurement of an axial gap of a neck of a cam-shaft
2.2.15.14. Check of a pusher of the valve
2.2.15.15. Check of the block of cylinders
2.2.15.16. Valve check of a maslorazbryzgivayushchy nozzle
2.2.15.17. Check of the piston
2.2.15.18. Check of a bent shaft
2.2.15.19. Measurement of size of a beating of a bent shaft
2.2.15.20. Measurement of diameters of necks of a bent shaft
2.2.15.21. Measurement of a radial gap in radical bearings of a bent shaft
2.2.15.22. Check of a side gap of a rod
2.2.15.23. Measurement of a radial gap of a rod
2.2.15.24. Check of bolts
2.2.16. Assembly of the block of cylinders (beginning)
2.2.17. Assembly of the block of cylinders (termination)
2.2.18. Assembly of a head of the block of cylinders
2.2.19. Assembly of the drive of the mechanism of gas distribution
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
 








2-2-15-proverka-golovki-bloka-cilindrov.html

2.2.15. Check of a head of the block of cylinders





Использование красителя при проверке блока цилиндров
Fig. 2.136. Use of dye when checking the block of cylinders


Execute check of a surface of a head of the block of cylinders by method of color contrast. Using the getting dye, check existence of cracks in combustion chambers, inlet and final channels and for surfaces of a gas joint (fig. 2.136).
In the presence of cracks, replace a head of the block of cylinders or make it (with the subsequent grinding).
Check depth of saddles of valves, radial and axial gaps of bearings of a cam-shaft (see further).

Измерение коробления головки блока цилиндров
Fig. 2.137. Measurement of a buckling of a head of the block of cylinders


Measure a head of the block of cylinders in six directions for identification of a buckling (fig. 2.137).
If deformation exceeds a maximum, replace a head of the block of cylinders.
Maximum buckling: 0,10 mm.
Maximum grinding: 0,15 mm.

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2.2.14.5. Dismantling of the block of cylinders (termination)
following page"
2.2.15.1. Check of the directing valve plug