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
 












4-23-khoningovanie-zerkal-cilindrov.html

4.23. Honingovaniye of mirrors of cylinders

Before assembly of the engine the honingovaniye of mirrors of cylinders for the purpose of achievement of the correct landing to them of piston rings providing due tightness of combustion chambers is without fail carried out.

In the absence of near at hand necessary tools or unwillingness to independently carry out a honingovaniye, work for quite moderate payment can be charged to experts of a workshop of car service.

Before starting a honingovaniye, establish into place assembly of covers of radical bearings (without inserts) and tighten fixing bolts with the required effort.

Two types of khans for processing of mirrors of cylinders are issued: хон like "the bottle brush" and, more traditional, superficial хон in the form of a nozzle with the sprung grinding stones. Both tools provide necessary quality of processing of mirrors of cylinders though use of the first is more preferable to the inexperienced mechanic. Also enough rags, special honingovochny or just liquid lubricating oil, and also the electric drill as the drive for honingovochny nozzles will be required.

Act in the following order.

 PERFORMANCE ORDER

  1. Clamp хон in an electric drill cartridge, reduce the sprung grinding stones / rods of the brush of a nozzle and fill the last in the cylinder.

Do not forget to put on goggles or a front guard!

  1. Plentifully moisten a mirror of the processed cylinder with oil, include a drill and begin to make a nozzle back and forth motions in the cylinder. Speed of vertical movement of a hon has to provide drawing on a surface of a mirror of the cylinder of a mesh pattern with the angle of crossing of the parties of a cell about 60 °. Do not feel sorry for oil and try not to remove more material from a surface of walls of the cylinder, than it is really necessary for achievement of the required result.

Manufacturers of piston rings can impose own requirements to the angle of crossing of the parties of a cell of a mesh pattern, - attentively study the instruction on packing of a remnabor.

  1. Do not take хон from the cylinder to a full stop of a drill! Continue to make back and forth motions by a nozzle until it does not stop rotating. After a stop of a drill squeeze grinding stones and take хон from the cylinder. When using of the khan like "bottle brush" wait for a full stop of a drill, then take a nozzle, continuing to rotate manually a cartridge in the normal direction.
  2. Wipe with rags a mirror of the cylinder and you pass to a following honingovaniye.

Upon completion of processing, use a file for removal of facets from the upper edges of cylinders — this processing is made with the purpose there were no difficulties with gas station in cylinders of pistons with the rings which are put on them. Observe extreme care — do not scratch a file a cylinder mirror.

In conclusion all block has to be washed carefully out by warm solution of soap water.

Cylinders can be considered washed out when after carrying out on a mirror the gray raid does not remain the white rags moistened with oil on it. Do not forget to clean a cylindrical brush all oil openings and channels, then wash out the block a water stream under a pressure.

After washing carefully dry the block and oil the pierced surfaces for protection them from corrosion. Prior to assembly of the engine wrap the block in a pure plastic bag.


"on the page back
4.22. Check of a condition of the block of the engine
on the following page"
4.24. Check of a condition of components of conrod and piston group