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


Removal and installation of covers of heads of cylinders



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. Mark and disconnect candle wires.
4. Remove the ignition distributor (see. Head engine Electric equipment).
5. Remove the top section of the inlet pipeline (the delivery chamber) (see. Section Removal and installation of the inlet pipeline).
6. Release and shift a fixing collar, then disconnect from a cover of a head of cylinders a ventilating hose (a branch pipe сапуна).
7. Disconnect all other hoses and the plaits of electroconducting disturbing to removal of a cover.

8. Turn out fixing bolts and remove the washers established under their heads.

9. Uncover heads of cylinders.

If the cover "became attached" and does not give in to separation from a head of cylinders, is accurate обстучите it on perimeter a hammer through wooden whetstone. In especially hard cases the layer of the dried-up hermetic can be cut by a shpatlevochny knife, - by no means try to hook a cover the lever got under its interfaced surface as damage of the last can lead to development of leaks.



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. Fill a flute on an interfaced surface of a cover with RTV hermetic, then lay over hermetic new sealing laying. Let's to hermetic dry up and fix a little thereby laying on a cover.
4. Accurately press a cover to a head of cylinders and screw fixing bolts.
5. In three-four stages tighten bolts with demanded effort.
6. Further assembly is made as it should be, the return to an order of dismantle of components.
7. Start the engine and check it on existence of signs of development of leaks.