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
      General information
      Preparatory actions and the list of repair procedures which can be executed without engine extraction from the car
      Reduction of the piston of the first cylinder in the provision of the top dead point (VMT)
      Removal and installation of covers of heads of cylinders
      Removal, check of a condition and installation of assembly of yokes
      Replacement of maslootrazhatelny caps and klapanny springs with plates
      Removal and installation of a gas-distributing belt and cogwheels of a drive of GRM
      Removal and installation of camshafts and pushers of valves
      Removal and installation of the inlet pipeline
      Removal and installation of final collectors
      Removal and installation of heads of cylinders
      Removal and installation of a pulley of a cranked shaft
      Replacement of a forward epiploon of a cranked shaft
      Removal and installation of the pallet of a case of the engine
      Removal, check of a condition and installation of the oil pump
      Removal and flywheel installation / driving disk
      Replacement of a back epiploon of a cranked shaft
      Check of a condition and replacement of support of a suspension bracket of the power unit
   + DOHC Engines
   + General major maintenance of the engine
+ 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
9a1e70e9



Removal, check of a condition and installation of the oil pump

REMOVAL

 PERFORMANCE ORDER

1. Remove a gas-distributing belt and cogwheels of a drive of GRM (see. Section Removal and installation of a gas-distributing belt and cogwheels of a drive of GRM). Remove the case pallet (see. Section Removal and installation of the pallet of a case of the engine).
2. Remove an adjusting level of the generator and turn out a bolt of fastening of a level to the oil pump (see. Head engine Electric equipment).

3. To Otboltita assembly of the steering pump (see. Head the Suspension bracket and a steering) also shift it aside, without disconnecting hydraulic lines. Remove an arm of fastening of the steering pump.

4. Turn out bolts of fastening of the oil pump to the engine block.

Tube of a maslozabornik with a nozzle of the filter can be left connected to the pump. One of bolts of fastening of assembly of the pump is turned out at a stage described in paragraph 2, the long bolt of fastening of an adjusting level of the generator.

5. For the purpose of destruction of a layer of hermetic обстучите pump assembly by a hammer through wooden whetstone.
6. Having pulled outside, remove the pump from the engine block.
7. Scratch out from interfaced surfaces of the pump and the engine block all traces of hermetic and fragments of a material of old laying, then wipe surfaces the rags moistened in acetone.

CHECK

 PERFORMANCE ORDER

1. By means of a big screw-driver with a cross-shaped sting turn out screws of fastening of a back cover of the oil pump.

2. Wash out all components in solvent, then check them on existence of signs of excessive wear and mechanical damages.

3. Remove a cap and take components of the reduktsionny valve. Estimate a condition of a sliding surface of the valve and its spring. In case of detection of defects replace components in a set.

1 — the Cap
2 — the Washer
3 — the Spring
4 — the Valve

4. By means of measuring щупа lezviyny type define sizes of working gaps of gear wheels of the pump. The following gaps are subject to check:

a) Axial люфт landings of an internal gear wheel in the pump case;
b) Axial люфт landings of an external gear wheel in the pump case;
c) A gap between a forming surface of an external gear wheel and the pump case;
d) A gap between teeths of an external gear wheel and a crescent partition;
e) A gap between teeths of an internal gear wheel and a crescent partition;
Compare results of measurements to requirements of Specifications. In case of need make pump replacement assembled.

5. Fill the pump technical vaseline. Establish into place a cover and tighten screws of its fastening with demanded effort. Establish into place components of the reduktsionny valve, screw and tighten a cap.

6. Having replaced a sealing ring, connect to pump assembly a tube of a maslozabornik. Tighten bolts of fastening of a tube with demanded effort.

INSTALLATION

 PERFORMANCE ORDER

1. Grease an interfaced surface of the pump with RTV hermetic.

2. Installation of components is made as it should be, the return to an order of their dismantle. Do not forget to replace sealing laying.

Lyski naves of an internal gear wheel of the pump should enter into gearing with reciprocal лысками on a pin of a cranked shaft. Track, that all fixture was tightened with demanded effort.