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
 












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4.4. Removal and installation of the engine

In order to avoid unauthorized operation of safety cushions get to work not less than 10 minutes later after shutdown of the rechargeable battery.


Removal of the engine is made after preliminary separation of transmission from it.


Scheme of the organization of a suspension bracket of the power unit

 

 PERFORMANCE ORDER

  1. Switch off ignition.
  2. Open a cowl.
  3. Disconnect a negative wire from the battery.
  4. Carefully mark all subjects to a detachment lines of communication (electrical wiring plaits, vacuum and air hoses, driving cables, fuel lines and tubes of a cooling path).
  5. Dump pressure in a power supply system (see Check of compression pressure in cylinders).
  6. Remove a cowl.
  7. Empty the cooling system and remove a radiator (see the Head of the Cooling system and heating).
  8. Take off belts of the drive of auxiliary units, the generator and assembly of the fan of the cooling system (see the Head of the Cooling system and heating).
  1. Remove the steering pump and the K/V compressor — without disconnecting hydraulic / refrigerator lines, shift components aside and fix them by a wire.
  1. Make a detachment of all lines of communication impeding the implementation of the procedure.
  2. The car also establish to Poddomkratta it on props (see the illustration Scheme of an Institution of Props for fixing of the car in the lifted situation). Remove protection of a case.
  3. Disconnect reception pipes of system of production of the fulfilled gases from a final collector of the engine.
  4. Disconnect from transmission of the line of cooling of ATF, driving drafts and an electrical wiring. Take the probe of measurement of the ATF level.
  5. Mark the provision of a connecting flange of the driveshaft of rather main transfer of the back bridge. Also mark heads of fixing bolts — at assembly they have to be rolled strictly on the former places. Turn out fixing bolts and remove the driveshaft. At once to a zakuporta an opening under installation of a shaft in transmission in order to avoid hit in dirt.
  6. Remove a starter.
  7. Turn out bolts of fastening of the hydrotransformer to a driving disk. Prop up transmission a cart jack and remove the bearing beam laid under it. Disconnect a basic arm of transmission from the engine block.
  8. You will hang out the engine from above on the winch.
  9. Turn out fixing bolts, carefully separate transmission from the engine and take it from under the car (see the Head the Transmission line).
  10. Give nuts of fastening of support of an engine mount to a frame (see the illustration Scheme of the Organization of a Suspension Bracket of the Power Unit).
  11. Lift the engine and take it from the car.


Installation

Installation is made as it should be, the return to an order of dismantle of components — track that all fixture was tightened with the required effort.

Having finished installation, make necessary adjustments of driving cables and levels of working liquids.


"on the page back
4.3. Diagnostics of a condition of the engine with use of the vacuum gage
on the following page"
4.5. Removal and installation of the inlet pipeline




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