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 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
      Check and adjustment of gaps of valves
      Replacement of maslootrazhatelny caps and klapanny springs with plates
      Removal, check of a condition and installation of a chain and asterisks 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
   + 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 and installation of the inlet pipeline

Start procedure performance only after final cooling of the power unit.

Top section of the inlet pipeline (the delivery chamber)

 PERFORMANCE ORDER

1. Dump pressure in a power supply system (see. Head of the Power supply system and release).
2. Disconnect a negative wire from the battery.

If the stereosystem established on the car is equipped with a security code before disconnecting the battery make sure that have the correct combination for audiosystem input in action!

3. Remove an inlet air line (see. Head of the Power supply system and release).

4. Remove ignition coils (see. Head engine Electric equipment). Mark and disconnect fixed on the delivery chamber and the throttle case hoses and electroconducting plaits.

1 — the Hose of the vacuum amplifier of brakes
2 — ignition Coils
3 — Elektroprovodka of the IAC/electromagnetic valve of the valve of turns of fast idling
4 — the TPS/datchik-switch of a closed position of a butterfly valve
5 — a PCV valve Hose
6 — gas Cables / темпостата
7 — Branch pipes сапунов
8 — electroconducting Plaits
9 — Hoses of an okhladitelny path

5. Remove directing tube of EGR and basic arms of the top section of the inlet pipeline from a back part of the top delivery chamber.

Access to directing tube of EGR and arms of the pipeline is extremely limited.

6. Operating as it should be, the return shown on an illustration, weaken bolts of fastening of the top section of the inlet pipeline. Remove the top delivery chamber together with the case of a throttle connected to it.

7. Before installation of the top section carefully smooth out interfaced surfaces of the pipeline and the top delivery chamber. Having completely removed from surfaces traces of old laying and hermetic, wipe their rags moistened in solvent.
8. Put on hairpins of the inlet pipeline new sealing laying (a label forward), then plant from above on the bottom section of the pipeline the top delivery chamber and, moving in strictly certain order, tighten fixing bolts with demanded effort. Further installation is made as it should be the return to an order of dismantle of components.

Bottom section of the inlet pipeline

 PERFORMANCE ORDER

1. Remove the top section of the pipeline.
2. Mark and disconnect all disturbing to dismantle of the bottom section hoses and electroconducting.
3. Remove from the pipeline the fuel highway with injection injectors (see. Head of the Power supply system and release).

4. Operating as it should be, the return shown on an illustration, in stages (on 1/4 turns for an approach) weaken bolts/nut of fastening of the pipeline so that there was a possibility of their reversing manually.

5. If the pipeline "became attached" and does not give in to separation from heads of cylinders, обстучите its hammer through wooden whetstone.

 At all do not hook the pipeline the lever under an interfaced surface.

6. Carefully smooth out interfaced surfaces of the pipeline and heads of cylinders, having completely removed from them traces of a material of old laying and hermetic and having wiped then the rags moistened in acetone.
7. Establish new laying and the pipeline, - track correctness of placement of components on fixing hairpins. Screw nuts.

8. In strictly certain order in some stages tighten pipeline fixture with demanded effort.

Efforts of a tightening of nuts differ from efforts of a tightening of bolts.

9. Further installation is made as it should be the return to an order of dismantle of components. Do not forget to fill system of cooling and to replace impellent oil (see. Head of Control and routine maintenance).
10. Start the engine and check it on existence of signs of leakages of the fuel, cooling liquid and depression losses.