Service Infiniti QX4 since 1996 of release
1. Introduction
2. The maintenance instruction
3. Routine maintenance
4. The engine
4.1. Specifications
4.2. Check компрессионного pressure in cylinders
4.3. Diagnostics of a condition of the engine with vacuum gauge application
4.4. Removal and engine installation
4.5. Removal and installation of the inlet pipeline
4.6. Replacement of a belt of drive ГРМ
4.7. Removal, check of a condition and installation of a head of cylinders
4.8. Replacement of a forward epiploon of a cranked shaft
4.9. Removal, check of a condition and installation of components клапанного the mechanism
4.10. Replacement of epiploons of camshafts
4.11. Replacement of a back epiploon of a cranked shaft
4.12. Removal and pallet installation картера
4.13. Removal, service and installation of the oil pump
4.14. Alternative variants of schemes of regenerative repair of the engine
4.15. An order of dismantling of the engine by its preparation for major repairs
4.16. Dismantling and check of a condition of a head of cylinders and components клапанного the mechanism
4.17. Recommendations about service of valves
4.18. Assemblage of a head of cylinders
4.19. Removal of shatunno-piston assemblages
4.20. Removal of a cranked shaft
4.21. Cleaning of the block of the engine
4.22. Check of a condition of the block of the engine
4.23. Хонингование mirrors of cylinders
4.24. Check of a condition of components of shatunno-piston group
4.25. Check of a condition of a cranked shaft
4.26. Check of a condition and selection of loose leaves radical and шатунных bearings of a cranked shaft
4.27. An engine assembly order
4.28. Installation of piston rings
4.29. Installation of a cranked shaft and check of working backlashes of radical bearings
4.30. Installation of shatunno-piston assemblages and check of size of working backlashes in шатунных bearings of a cranked shaft
4.31. Trial start and обкатка the engine after major repairs
5. Cooling and heating systems
6. Power supply systems and managements
7. Start and charge systems
8. A transmissionnaja line
9. Brake system
10. A suspension bracket and a steering
11. A body
12. An electric equipment
 






Статья о том, как выбрать стабилизатор напряжения

Статья о том, как выбрать стабилизатор напряжения.

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4-22-proverka-sostoyaniya-bloka-dvigatelya.html

4.22. Check of a condition of the block of the engine

Preliminary the block should be carefully cleared (Cleaning of the block of the engine) see.

 PERFORMANCE ORDER

  1. Make external survey of the block about revealing of traces of corrosion, cracks and other damages. Check up a carving condition болтовых apertures. It will be reasonable to make also testing of the block for presence of the latent cracks in the conditions of a workshop of car-care centre with application of the special diagnostic equipment. In case of revealing of defects the block is subject to regenerative repair or replacement.
  2. Check up a condition of mirrors of cylinders.
  3. Estimate sizes taking place конусности and ovality of cylinders:
    • Measure diameter of each of cylinders in top (directly under border of step deterioration), the central and bottom sections in a plane of a parallel axis of a cranked shaft;
    • Now measure diameters at the same three levels, but in a plane, a perpendicular axis of the block;
    • The size конусности the cylinder is defined by a difference between results of measurements in the top and bottom sections. As ovality is called the difference of diameters in a parallel and perpendicular axis of a cranked shaft in each of planes;
  1. Operating in the described manner, serially check up all cylinders.
  1. Standard diameters of cylinders can have insignificant disorder for the purpose of which indemnification pistons of several standard dimensional groups are issued, — group number is beaten out on a surface of the block near to each cylinder, and also on the piston bottom, behind a forward label.
  1. At installation of pistons of the standard size track conformity of their dimensional groups to dimensional groups of corresponding cylinders. At installation шатунных assemblages pistons should appear are developed by forward labels on the bottoms forward on the engine.
  1. At revealing of appreciable defects or a deviation of results of measurements from standard requirements, the block of cylinders is subject to regenerative machining in the conditions of a car-care centre workshop. If in the course of regenerative repair has been made расточка cylinders, the engine should be completed by new pistons corresponding repair (with excess) the size.
  2. If the condition of mirrors of cylinders during check performance is found satisfactory at simultaneous observance of standard requirements to the form of cylinders and landing backlashes in them of pistons (Check of a condition of components of shatunno-piston group see), necessity in проточке cylinders disappears. Will execute only хонингование their mirrors (Honingovanie of mirrors of cylinders see) enough.
  1. Check up planeness of a surface of the block interfaced to a head (measurement should be made in three directions: on an axis of the block and its two diagonals. Compare result of measurements to requirements of Specifications, in case of need give the block in проточку.


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4.21. Cleaning of the block of the engine
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4.23. Хонингование mirrors of cylinders