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
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Removal and installation of covers of heads of cylinders

REMOVAL

 PERFORMANCE ORDER

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!


Cover of a forward head of cylinders

 PERFORMANCE ORDER

1. Remove ventilating hoses and a cover of bobbin assemblies.

2. Remove ignition coils (see. Head engine Electric equipment).

3. Operating as it should be the return shown on an illustration, turn out bolts of fastening of a cover of a head of cylinders.

4. Uncover.

For office to the "become attached" cover обстучите its hammer through wooden whetstone. At all do not hook a cover the lever under an interfaced surface!


Cover of a back head of cylinders

 PERFORMANCE ORDER

1. Remove the top section of the inlet pipeline (the delivery chamber) (see. Section Removal and installation of the inlet pipeline).
2. Remove from a back cover of assembly of coils of ignition (see. Head engine Electric equipment).
3. Having released fixing collars, disconnect from a cover ventilating hoses.
4. Disconnect a hose of PCV and the electroconducting disturbing to removal of a cover.

5. Operating as it should be the return shown on an illustration, turn out bolts of fastening of a cover of a head of cylinders.

6. Uncover.

For office to the "become attached" cover обстучите its hammer through wooden whetstone. At all do not hook a cover the lever under an interfaced surface!

INSTALLATION

Both covers

 PERFORMANCE ORDER

1. Interfaced surfaces of heads of cylinders and their covers should be absolutely pure and dry. By means of a scraper remove all traces of old hermetic and fragments of the destroyed laying, then wipe surfaces the rags moistened in acetone. Presence on interfaced surfaces of traces of oil can lead to development of leaks.
2. In case of need banish a carving of fixing bolts a suitable lerka, restoring the damaged rounds and deleting a rust and traces of old hermetic. A tap of the corresponding size banish carving openings in a head.

3. Check a condition of the heads of cylinders of sealing washers of directing tubes of spark plugs planted in covers, in case of need make replacement.

4. Fill a flute on an interfaced surface of a cover with RTV hermetic, also impose hermetic in corners of joints of a cover with a cover of forward bearings of camshafts. Lay over hermetic new sealing laying. Let's to hermetic dry up and fix a little thereby laying on a cover.
5. Accurately press a cover to a head of cylinders and screw fixing bolts.

6. Moving in strictly certain order, in three-four stages tighten bolts with demanded effort.

7. Further assembly is made as it should be, the return to an order of dismantle of components.
8. Start the engine and check it on existence of signs of development of leaks.