Nissan Maxima QX

since 1993 of release

Repair and car operation



Nissan Maxima QX
+ Nissan Maxima brand Cars
+ Maintenance instruction
+ Settings and routine maintenance
- Engine
   + SOHC Engines
   + DOHC Engines
   - General major maintenance of the engine
      General information
      Check of pressure of oil
      Check of kompressionny pressure in cylinders
      Diagnostics of a condition of the engine with use of the vacuum gage
      Alternative versions of schemes of regenerative repair of the engine
      Removal of the power unit from the car - preparation and precautionary measures
      Removal and engine installation
      Order of dismantling of the engine by its preparation for major maintenance
      Dismantling of a head of cylinders
      Cleaning and check of a condition of a head of cylinders
      Service of valves
      Assembly of a head of cylinders
      Removal of shatunno-piston assemblies
      Removal of a cranked shaft
      Cleaning of the block of the engine
      Check of a condition of the block
      Honingovaniye of mirrors of cylinders
      Check of a condition of components of shatunno-piston group
      Check of a condition of a cranked shaft
      Check of a condition and selection of loose leaves of radical and shatunny bearings of a cranked shaft
      Check of a condition of camshafts, pushers of valves and bearings
      Engine assembly order
      Installation of piston rings
      Installation of a cranked shaft and check of working gaps of radical bearings
      Installation of a back epiploon of a cranked shaft
      Installation of shatunno-piston assemblies and check of size of working gaps in shatunny bearings of a cranked shaft
      Trial start and engine running in after major maintenance
+ Systems of cooling, heating
+ Power supply system and release
+ engine Electric equipment
+ Control systems of the engine
+ Transmission
+ Coupling and power shafts
+ Brake system
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment
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Service of valves

In view of complexity of kind of work and need of use of the special equipment, performance of service of valves, directing plugs and saddles it will be most correct to charge them to the car-care center personnel.

By own strengths of the owner of the car such procedures, as head dismantling, primary cleaning and check of a condition of components of the klapanny mechanism can be made. Thus rather fair idea of volume of subjects to works is usually made and the approximate list of necessary replaceable components can be prepared. Then it is necessary to collect and deliver a head for professional service in a car-care center workshop.

Experts of a workshop will remove valves and klapanny springs from a head and will make necessary regenerative repair or replacement of worn-out components (valves, their saddles, directing plugs, springs, plates of springs and crackers of cutting locks). Replacement of maslootrazhatelny caps is without fail made. After assembly of components the adjusting height of klapanny springs will be checked. In case of need experts will make a head pro-point for the purpose of restoration of planeness of its interfaced surfaces.

After completion of professional repair of a head its condition usually corresponds to a condition of the new. Before installation on the engine be not too lazy to clean carefully once again a head, having completely removed from all her cavities and channels metal sawdust, traces of an abrasive and other small production garbage. All channels and openings blow the compressed air (do not forget to put on goggles).