Service Nissan Sunny with 1991 on 1997 of release in a body n-14.
1. The maintenance instruction
2. Maintenance service
3. Engines
3.1. The petrol engine in volume of 1,4 and 1,6 litres
3.2. The petrol engine in volume of 2,0 litres
3.2.1. Kinds of repair of the engine without dismantle from the car
3.2.2. Dismantle and engine major repairs
3.2.2.1. Engine major repairs
3.2.2.2. Dismantle of the power unit
3.2.2.3. The power unit from a manual transmission
3.2.2.4. The power unit with automatic transmission
3.2.2.5. A head of the block of cylinders
3.2.2.6. A head of cylinders and valves
3.2.2.7. The piston in gathering with a rod
3.2.2.8. Коленвал
3.2.2.9. The block of cylinders and коленвал
3.2.2.10. Shatunno-piston group
3.2.2.11. Radical and шатунные bearings
3.2.2.12. Piston rings
3.2.2.13. Start-up of the engine after major repairs
3.3. The diesel engine
4. Cooling system
5. Heating and ventilation system
6. Fuel and an exhaust system
7. System of start-up of the engine
8. Coupling
9. Transmissions
10. Semiaxes
11. Brakes
12. Suspension brackets and a steering
13. A body
14. An electric equipment
 




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3.2.2.5. A head of the block of cylinders

Dismantling


The prevention

In points of repair the manufacturer in spare parts delivers new and repair heads of the block of cylinders. That for dismantling and check procedures the specialised tool is required, and spare parts to find sometimes hardly, acquisition of a new head of the block, than dismantling, check and repair of a head were in operation is represented to more expedient.


PERFORMANCE ORDER
1. Remove a head of the block of cylinders.
2. Remove soaking up and final collectors if these details are not removed yet (see subsection 6.1.12 and subsection 6.1.13).
3. Remove levers of a drive of valves and hydroregulators.
4. Turn away bolts and remove from a head of cylinders branch pipes of system of cooling.
5. Compress a spring of the first valve by means of the adaptation and remove crackers. Cautiously release a valve spring, remove a spring plate, a spring and a basic washer. Remove flat-nose pliers маслосъемные caps from directing plugs.
6. If at compression of the adaptation the plate of a spring of the valve does not depart and does not release crackers slightly knock on the adaptation directly over a plate a hammer with soft brisk that will facilitate plate removal.
7. Get the valve from a head of cylinders from outside combustion chambers.
8. The valve should be stored together with crackers, a spring, a plate of a spring and a basic washer. Also it is necessary to mark valves to establish on a former place, except for in what strong deterioration because of which valve replacement is required is found out.
9. If valves are established again place them in the separate polyethylene bag supplied with corresponding number. Keep in mind that valve N1 is near to a chain cover газораспределительного the mechanism.

Assemblage

PERFORMANCE ORDER
1. Establish a basic washer of a spring, then dip маслосъемный a cap into fresh oil for the engine. Cautiously dress a cap on a core of the valve and on the plug. Do not damage caps at clothing on a valve core.
2. On directing plug a cap напрессуйте with the help оправки.
3. Grease cores of valves with fresh oil for the engine and establish valves in corresponding directing plugs on a head of cylinders, observing an order of initial installation. New valves should be established in those saddles to which they have been ground in.
4. Establish a spring on a basic washer, сориентировав so that densely wound coils of a spring have been turned downwards.
5. Establish a spring plate.
6. Compress springs and insert crackers into a flute on a valve core. Release a spring of the valve and remove the adaptation. Similarly establish crackers of other valves.

The prevention

To keep crackers in flutes of the valve during adaptation removal, fix crackers, having put on them a point консистентную greasing.


7. After installation of all valves turn a head of cylinders and besiege details клапанного the mechanism easy blows of a hammer through the wooden prorate on a core of each valve.
8. Check up cleanliness of demountable surfaces of a head of cylinders and a branch pipe of system of cooling. Put on these surfaces a strip of hermetic and establish a branch pipe, reliably having tightened bolts.
9. Now it is possible to collect a head of cylinders with other details.


3.2.2.4. The power unit with automatic transmission

3.2.2.6. A head of cylinders and valves