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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4.5. Removal and installation of the inlet pipeline

 PERFORMANCE ORDER

  1. Dump pressure in a power supply system (see. Check of kompressionny pressure in cylinders).
  2. Empty cooling system (see. Head Routine maintenance).
  3. Disconnect from a collector of the inlet pipeline cables of a drive of a butterfly valve and темпостата.
  4. Remove an air line sleeve.
  5. Remove disturbing to access to the inlet pipeline lines of communication:
    • Electroconducting of valve IACV ААС, sensor of provision of a butterfly valve (TPS), sensor switch of extreme provisions of a butterfly valve, coil of ignition, powerful transistor, electromagnetic EGRC valve and sensor of temperature of EGR;
    • The hoses of an okhladitelny path brought to a collector;
    • Hoses of a heating path;
    • PCV hose (from the right head of cylinders);
    • Vacuum hoses of a coal adsorber, GTTs and pressure regulator;
    • Hose of a purge of a coal adsorber;
    • EGR tube;
    • Grounding tires;
  6. Turn out fixing bolts and remove a collector of the inlet pipeline with sealing laying.
  1. Disconnect from the fuel highway submitting and returnable gasoline pipe lines, disconnect electroconducting from all injectors and remove the fuel highway.
  1. Operating in strictly certain order, release bolts of fastening of the inlet pipeline.

  1. Finally turn out fixing bolts and remove the pipeline.
  2. In case of need remove from a collector of the inlet pipeline the throttle case.


Installation

Installation is made as it should be, the return to an order of dismantle of components — do not forget to make replacement of all sealing and insulating elements. Track, that all fixture was tightened with demanded effort.

The tightening of bolts of fastening of the inlet pipeline is made evenly as it should be, the return to an order of their easing.



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4.4. Removal and engine installation
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4.6. Replacement of a belt of a drive of GRM