Service of the Infiniti QX4 since 1996 of release
1. Introduction
2. Maintenance instruction
3. Routine maintenance
4. Engine
4.1. Specifications
4.2. Check of compression pressure in cylinders
4.3. Diagnostics of a condition of the engine with use of the vacuum gage
4.4. Removal and installation of the engine
4.5. Removal and installation of the inlet pipeline
4.6. Replacement of a belt of the GRM drive
4.7. Removal, check of a state and installation of a head of cylinders
4.8. Replacement of a forward epiploon of a bent shaft
4.9. Removal, check of a state and installation of components of the valvate mechanism
4.10. Replacement of epiploons of camshafts
4.11. Replacement of a back epiploon of a bent 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 recovery repair of the engine
4.15. An order of dismantling of the engine by preparation it to capital repairs
4.16. Dismantling and check of a condition of a head of cylinders and components of the valvate mechanism
4.17. Recommendations about service of valves
4.18. Assembly of a head of cylinders
4.19. Removal of conrod and piston assemblies
4.20. Removal of a bent 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 conrod and piston group
4.25. Check of a condition of a bent shaft
4.26. Check of a state and selection of inserts of radical and conrod bearings of a bent shaft
4.27. Engine assembly order
4.28. Installation of piston rings
4.29. Installation of a bent shaft and check of working gaps of radical bearings
4.30. Installation of conrod and piston assemblies and check of size of working gaps in conrod bearings of a bent shaft
4.31. Trial start and a running in of the engine after capital repairs
5. Cooling system and heating
6. Feed and control systems
7. Systems of start and charge
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 inserts of bearings. Mark inserts by means of an adhesive tape on compliance to the beds ( bearing No., a block / cover) and put them aside.
  2. Scratch out all traces of material of old laying from the interfaced surface of the block. Try not to leave zadir.
  3. Remove all covers and carving caps of oil galleries from the block. Caps are usually tightened very hardly therefore, quite perhaps, 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 bring him in a workshop of car service for steam cleaning or heat treatment.
  5. After return of the block from a workshop once again carefully clean all oil openings and galleries - for this purpose special cylindrical brushes of a special form are issued (ask in shops of automobile accessories). Wash out cavities and channels warm water — continue washing until from the opposite side of the block clear water does not begin to follow. Carefully dry up the block, then slightly oil all pierced surfaces liquid for protection them from corrosion. In the presence of access to a source of compressed air use it for acceleration of process of drying of the block and a purge of remote cavities and channels.

During the work with 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 brush cleaning by hot water with soap. It is not necessary to try to save time at the expense of the negligent relation to cleaning of the block. Regardless of the chosen way, track care of a clearing of remote cavities, channels and openings. In conclusion dry the block and oil the pierced surfaces liquid 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 dynamometer key to really developed efforts of tightening of fixture at assembly of the engine. Whenever possible, blow then the banished openings 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 noncongealable sealant a carving of new caps and a zakuporta them openings of oil galleries. Track durability of tightening of caps.
  5. If you are not going to start immediately assembly of the engine, place the block in a big plastic bag for protection of its pollution.


"on the page back
4.20. Removal of a bent shaft
on the following page"
4.22. Check of a condition of the block of the engine