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
 












4-21-chistka-bloka-dvigatelya.html

4.21. Cleaning of the block of the engine

 PERFORMANCE ORDER

  1. Remove assembly of covers of radical bearings and take from the beds in covers and the block loose leaves of bearings. Mark loose leaves by means of an adhesive tape on compliance to the beds ( bearing No., a block / cover) and put them aside.
  2. Scratch out from an interfaced surface of the block all traces of a material of old laying. Try not to leave задиров.
  3. Remove from the block all covers and carving caps of oil galleries. Caps are usually tightened very hardly therefore, quite probably, they should be drilled with the subsequent restoration of a carving in an opening. At assembly of the block of a cap it is necessary to replace new.
  4. At strong external pollution of the engine it is necessary to deliver it in a car-care center workshop for steam cleaning or heat treatment.
  5. After block return from a workshop once again carefully clean all oil openings and galleries - for this purpose special cylindrical brushes of a special form (ask in shops of automobile accessories) are issued. Wash out cavities and channels warm water — continue washing until from the opposite side of the block pure water will not start to follow. Carefully dry up the block, then slightly grease all pierced surfaces with liquid oil for protection them from corrosion. In the presence of access to a source of the compressed air use it for acceleration of process of drying of the block and a purge of remote cavities and channels.

At work with the compressed air do not forget to put on goggles!

  1. At strong pollution or a zashlakovyvaniye of the block it is necessary to resort to shchetochny cleaning by hot water with soap. It is not necessary to try to save time at the expense of the negligent relation to block cleaning. Regardless of the chosen way, track care of pro-cleaning of remote cavities, channels and openings. In summary dry the block and grease the pierced surfaces with liquid oil for protection them from corrosion.
  2. Banish all carving openings in the block a tap of the corresponding size for the purpose of a guarantee of compliance of indications of the indicator of a dinamometrichesky key to really developed efforts of a tightening of fixture at engine assembly. Whenever possible, blow then the banished openings the compressed air, having removed from them all small garbage and shaving. Having finished processing of openings, walk a lerka by a carving part of bolts.
  3. Establish to the place of a cover of radical bearings, having by hand tightened their fixture.
  4. Grease with not stiffening hermetic a carving of new caps and закупорьте them openings of oil galleries. Track durability of a tightening of caps.
  5. If are not going to start immediately engine assembly, place the block in a big plastic bag for protection of its pollution.


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4.20. Removal of a cranked shaft
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4.22. Check of a condition of the block of the engine