Service Infiniti QX4 since 1996 of release
1. Introduction
2. The maintenance instruction
3. Routine maintenance
4. The engine
4.1. Specifications
4.2. Check компрессионного pressure in cylinders
4.3. Diagnostics of a condition of the engine with vacuum gauge application
4.4. Removal and engine installation
4.5. Removal and installation of the inlet pipeline
4.6. Replacement of a belt of drive ГРМ
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 клапанного the mechanism
4.10. Replacement of epiploons of camshafts
4.11. Replacement of a back epiploon of a cranked shaft
4.12. Removal and pallet installation картера
4.13. Removal, service and installation of the oil pump
4.14. Alternative variants of schemes of regenerative repair of the engine
4.15. An order of dismantling of the engine by its preparation for major repairs
4.16. Dismantling and check of a condition of a head of cylinders and components клапанного the mechanism
4.17. Recommendations about service of valves
4.18. Assemblage of a head of cylinders
4.19. Removal of shatunno-piston assemblages
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. Хонингование 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 radical and шатунных bearings of a cranked shaft
4.27. An engine assembly order
4.28. Installation of piston rings
4.29. Installation of a cranked shaft and check of working backlashes of radical bearings
4.30. Installation of shatunno-piston assemblages and check of size of working backlashes in шатунных bearings of a cranked shaft
4.31. Trial start and обкатка the engine after major repairs
5. Cooling and heating systems
6. Power supply systems and managements
7. Start and charge systems
8. A transmissionnaja line
9. Brake system
10. A suspension bracket and a steering
11. A body
12. An electric equipment
 












4-13-snyatie-obsluzhivanie-i-ustanovka-maslyanogo-nasosa.html

4.13. Removal, service and installation of the oil pump

The oil pump is established in a forward part of the engine and equipped built in редукционным by the valve. The perepusknoj valve is built in in transitive a flange located on the block of cylinders of the oil filter and access to it opens after removal of the last.


Removal and dismantling

 PERFORMANCE ORDER

  1. Merge impellent oil.
  2. Empty a radiator of system of cooling (Routine maintenance see the Head).
  3. Remove an air inlet sleeve
  4. Remove the fan of system of cooling with a casing.
  5. Remove top and bottom радиаторные hoses.
  6. Remove the pallet картера (Removal and pallet installation картера see).
  7. Remove a belt of drive ГРМ (Replacement of a belt of drive ГРМ see).
  8. Remove the oil pump.
  9. Remove from the pump a cover with a sealing lining and take from the gear wheel case.
  10. Turn out a stopper редукционного the valve and take from a nest in the pump case клапанные a spring and плунжер. Check up a spring on presence of deformations, and плунжер — on presence of scratches and задиров. Defective components are subject to replacement.


Condition check

 PERFORMANCE ORDER

  1. Carefully wash out components of pump assemblage in solvent.
  1. Measure size of working backlashes of gear wheels of the pump. Compare results of measurements to requirements of Specifications. If the size of backlashes falls outside the limits admissible values, replace gear wheels or pump assemblage.

    A — Measurement of backlashes between tops of teeths of gear wheels and between an external gear wheel and the case
    B — Measurement of size axial люфта gear wheels
    C — Measurement of a backlash of landing of an acting part of an internal gear wheel in the pump case

A.

B.

C.
  1. Establish gear wheels in the case of the pump and fill cavities between their teeths technical vaseline (as initial filling at primary start).


Assemblage and installation

 PERFORMANCE ORDER

  1. Establish in pump assemblage a new forward epiploon of a cranked shaft (Replacement of a forward epiploon of a cranked shaft see).
  2. Grease components of pump assemblage with pure impellent oil and plant in the case the complete set of gear wheels and components редукционного the valve.
  3. Establish into place a cover and fill in in the pump impellent oil.
  4. Establish the pump on the engine, — do not forget to change a sealing lining. Establish маслозаборную a tube (also with a new sealing ring).
  5. Grease screws of fastening of a cover of the pump with antitaking hermetic. Establish a cover, screw screws and tighten them with demanded effort. Establish in the case of the pump a spring and плунжер редукционного the valve. Having replaced a sealing washer, screw a stopper and strongly tighten it.


On page back
4.12. Removal and pallet installation картера
On the following page
4.14. Alternative variants of schemes of regenerative repair of the engine