Infiniti QX4 service since 1996 of release
1. Introduction
2. Maintenance instruction
3. Routine maintenance
4. Engine
4.1. Specifications
4.2. Check of kompressionny pressure in cylinders
4.3. Diagnostics of a condition of the engine with use of the vacuum gage
4.4. Removal and engine installation
4.5. Removal and installation of the inlet pipeline
4.6. Replacement of a belt of a drive of GRM
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 of the klapanny mechanism
4.10. Replacement of epiploons of camshafts
4.11. Replacement of a back epiploon of a cranked shaft
4.12. Removal and installation of the pallet of a case
4.13. Removal, service and installation of the oil pump
4.14. Alternative versions of schemes of regenerative repair of the engine
4.15. An order of dismantling of the engine by its preparation for major maintenance
4.16. Dismantling and check of a condition of a head of cylinders and components of the klapanny mechanism
4.17. Recommendations about service of valves
4.18. Assembly of a head of cylinders
4.19. Removal of shatunno-piston assemblies
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. Honingovaniye of 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 of radical and shatunny bearings of a cranked shaft
4.27. Engine assembly order
4.28. Installation of piston rings
4.29. Installation of a cranked shaft and check of working gaps of radical bearings
4.30. Installation of shatunno-piston assemblies and check of size of working gaps in shatunny bearings of a cranked shaft
4.31. Trial start and an engine running in after major maintenance
5. Cooling and heating systems
6. Power supply systems and managements
7. Start and charge systems
8. Transmission line
9. Brake system
10. Suspension bracket and steering
11. Body
12. Electric equipment
 








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4-1-specifikacii.html

4.1. Specifications

Separate parameters are specified also in the text of Head and in case of obligation of their performance are allocated with a bold print.


Scheme of an arrangement of cylinders

 

Characteristic

Value

Designation

VG33E

Type

Petrol, 4-тактный, 6-cylinder (  V6 x 60 °), DOHC

Arrangement

Forward, longitudinal

GRM drive

Zubchatoremenny transfer

Number of valves on the cylinder

4

Working volume of cylinders, cm 3

3275

The developed capacity, h.p.

168 (125) at 4800 rpm

Torque, Nanometer

266 at 2800 rpm

Diameter of cylinders, mm

91.5

Course of pistons, mm

83.0

Ignition order (see an illustration the Scheme of an arrangement of cylinders)

1-2-3-4-5-6

Kompressionnoye pressure in cylinders, kgf/cm 2

  • Nominal rate

12.1

  • Minimum admissible value

9.0

  • The maximum admissible difference between cylinders

1.0

Extent of compression

8.9:1

Power supply system

The distributed consecutive injection (SFI)


Oil pump

Characteristic

Value

Pressure of oil, kgf/cm 2

  • On single turns

0.6

  • At turns 2000 in a minute

4.2 — 4.6

Gap between teeths of external and internal gear wheels, mm

  • Limiting admissible working value

0.180

Gap between an external gear wheel and the case of the pump, mm

  • Nominal rate

0.114 — 0.200

Axial люфт gear wheels in the case, mm

  • External gear wheel

0.050 — 0.109

  • Internal gear wheel

0.050 — 0.090

Gap of landing of a ledge of an internal gear wheel in a nest of the case, mm

0.045 — 0.091


Head of cylinders


Head molding

Characteristic

Value

Adjusting height of a head, mm (see. Removal, check