Removal and installation, dismantling and assembly of a head of cylinders. Nissan Micra (since 2002 of release)
Service and to Nissan Micra car repairs (since 2002 of release)
1. Introduction
2. Governing bodies and operation receptions
3. Settings and routine maintenance of the car
4. Engine
4.1. General information and preparatory operations
4.2. Check of kompressionny pressure
4.3. Engine check by means of the vacuum gage
4.4. Check of pressure of impellent oil
4.5. Replacement of belts of a drive of auxiliary units and intermediate rollers of belts
4.6. Removal and installation of the inlet pipeline
4.7. Removal and installation of a final collector, catalytic converter and lambda probe
4.8. Removal and installation of the pallet of a case and maslozabornik
4.9. Removal and installation of a cover of a head of cylinders
4.10. Removal, check and installation of camshafts
4.11. Check and adjustment of klapanny gaps
4.12. Removal and installation of a chain of a drive of GRM
4.13. Removal and installation of epiploons of a cranked shaft
4.14. Removal and installation, dismantling and assembly of a head of cylinders
4.15. Removal and installation of the power unit
4.16. Service of the oil pump
4.17. Dismantling and assembly of the block of cylinders
5. Systems of cooling of the engine, heating, ventilation and air conditioning
6. A power supply system and production of the fulfilled gases
7. Systems of electric equipment of the engine
8. Manual box of gear shifting and coupling
9. Automatic transmission
10. Power shafts, rotary fists and stupichny assemblies
11. Brake system
12. Suspension bracket and steering
13. Body
14. Onboard electric equipment
15. Electric equipment schemes
 







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4.14. Removal and installation, dismantling and assembly of a head of cylinders

Removal and installation

Fixture of a head of cylinders


 PERFORMANCE ORDER

  1. Dump pressure in a power supply system (see. Undressed Sbrasyvaniye pressure in a power supply system).
  2. Empty cooling system (see. The section Replacement of cooling liquid).
  3. Remove the following components:
  1. Turn out bolts of fastening of a head of cylinders in sequence, return specified illustrations.
  1. Remove laying of a head of cylinders.
  1. Measure diameter of a carving of bolts of fastening of a head of cylinders in the places specified illustrations and subtract from bigger value the smaller. If the result exceeds 0.12 mm, replace a bolt.

If the minimum diameter of d2 not minimum, use instead of d2 the minimum diameter.


  1. Evenly put hermetic on the places specified illustrations and establish new laying of a head of cylinders.
  1. Establish a head of cylinders and tighten bolts of its fastening in the sequence specified an illustrations, and in the sequence stipulated in Specifications.


Previously grease a carving and the bottom edges of heads of bolts with impellent oil. At an otdavaniye of bolts at the second stage turn out them in return sequence. Auxiliary bolts (No. No. 11-13) should be tightened only after a final tightening of the main bolts.

  1. Further installation is made in sequence, return to an order of dismantle of components.

Dismantling and assembly

Since dismantling and assembly of a head of cylinders are typical procedures for all cars, the illustrations explaining assembly of a head of cylinders, and some features are given only.

Components of assembly of a head of cylinders

1 — the Spark plug
2 — valve Crackers
3/5 — the Top/bottom plate of a klapanny spring
4 — Klapannaya a spring
6 — Maslootrazhatelny a cap

7 — the Directing plug
8 — the Head of cylinders
9/12 — the Saddle of the inlet/final valve
10/11 — the Inlet/final valve
13 — the spark plug Plug

 PERFORMANCE ORDER

  1. At installation of a maslootrazhatelny cap of the valve observe the sizes specified an illustrations.
  1. At installation of the plug of a spark plug clear interfaced surfaces of old hermetic and put hermetic on the area specified illustrations. The height (H) of a vystupaniye of the plug should make 41 ÷ 42 mm.
  1. After dismantling of a head of cylinders check its parameters and parameters of klapanny mechanisms, being guided by Specifications. If necessary replace defective saddles and directing valves, valves or a head of cylinders assembled with the top support of camshafts. The deformed head of cylinders is not subject to a pro-point.



4.13. Removal and installation of epiploons of a cranked shaft

4.15. Removal and installation of the power unit