Nissan Maxima QX

since 1993 release

Repair and operation of the car

Nissan Maxima QX
+ Cars of the Nissan Maxima brand
+ Maintenance instruction
+ Settings and routine maintenance
- Engine
   + SOHC engines
   + DOHC engines
   - General capital repairs of the engine
      General information
      Check of pressure of oil
      Check of compression pressure in cylinders
      Diagnostics of a condition of the engine with use of the vacuum gage
      Alternative versions of schemes of recovery repair of the engine
      Removal of the power unit from the car - preparation and precautionary measures
      Removal and installation of the engine
      Order of dismantling of the engine by preparation it to capital repairs
      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 conrod and piston assemblies
      Removal of a bent 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 conrod and piston group
      Check of a condition of a bent shaft
      Check of a state and selection of inserts of radical and conrod bearings of a bent shaft
      Check of a condition of camshafts, pushers of valves and bearings
      Engine assembly order
      Installation of piston rings
      Installation of a bent shaft and check of working gaps of radical bearings
      Installation of a back epiploon of a bent shaft
      Installation of conrod and piston assemblies and check of size of working gaps in conrod bearings of a bent shaft
      Trial start and running in of the engine after capital repairs
+ Cooling systems, 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

Trial start and running in of the engine after capital repairs

At primary start of the engine after completion of its recovery repair near at hand without fail it is necessary to have the class B fire extinguisher!

PERFORMANCE ORDER

1. After installation of the power unit on the car, check levels of motive oil and cooling liquid in it.
2. By the turned-out candlelight and temporarily disconnected systems of ignition and food (see the Section Check of Compression Pressure in cylinders), turn the engine, having lifted oil pressure in it so that there was an operation of the corresponding control lamp on an instrument guard of the car.
3. Screw spark plugs, connect VV of a wire and restore functioning of systems of ignition and food (see the Section Check of Compression Pressure in cylinders).
4. Start the engine. Start can happen to the small delay necessary for rise in pressure of fuel, however no special difficulties should arise.

At emergence of flashes in the case of a throttle check correctness of adjustments of valvate gaps and a corner of an advancing of ignition.

5. After start it is necessary to warm up the engine up to the normal working temperature, in the course of a warming up checking it for existence of signs of leak of oil, cooling liquid and ATF. Let's the engine work within 15 minutes on single turns that is especially important after replacement of conrod bearings.
6. Kill the engine, and double-check levels of oil and cooling liquid in it.
7. Now it is possible to start trial runs and a running in of the engine. Remove the car to the area where intensity of traffic is minimum and sharply disperse it to the speed of 50 ÷ 80 km/h (30 ÷ 50 miles/h). Then dump speed to 50 km/h, having completely closed for this purpose a butterfly valve. Repeat the procedure 10 ÷ 12 of times, - the arising cyclic loadings will help shrinkage of piston rings in relation to walls of cylinders. Again check the engine for leaks.
8. The first 800 km (500 miles) of a run try to operate the engine in the sparing mode, regularly and often checking at the same time the level of engine oil. The raised oil consumption in the period of a running in of the engine is the normal phenomenon.
9. Approximately through 800 ÷ 1 000 km (500 ÷ 600 miles) of a run replace motive oil and an oil filter.
10. The following several hundreds of kilometers of a run the car can be operated in the normal mode.
11. Through 3200 km (2000 miles) replace motive oil and an oil filter again. Now the engine can be considered rolled finally.