Service of Nissan Sunny from 1991 to 1997 release in n-14 body.
1. Maintenance instruction
2. Maintenance
3. Engines
3.1. 1,4 and 1,6 liters petrol engine
3.2. 2,0 liters petrol engine
3.3. Diesel engine
3.3.1. Technical characteristics
3.3.2. Gear belt
3.3.3. Replacement of laying of a head of cylinders
3.3.4. Valves
3.3.5. Replacement of maslootrazhatelny caps of a core of the valve
3.3.6. Check of the directing valves
3.3.7. Grinding in of a saddle of the valve
3.3.8. Processing of a head of cylinders / valves
3.3.9. Check / adjustment of gaps of valves
3.3.10. Check of a compression
3.3.11. Maple belt
3.3.12. Malfunctions of the engine
3.3.13. Engine lubrication system
3.3.14. Oil contour
3.3.15. Removal and installation of the pallet of a case
3.3.16. Oil pump
3.3.17. Cooling system
3.3.18. Injection device
3.3.19. Spark plugs
3.3.20. Power supply system
3.3.21. Check / replacement of the valve of interruption in supply of fuel
3.3.22. Speed of idling and maximum speed
3.3.23. Nozzles
3.3.24. Beginning of giving of the fuel pump of high pressure
3.3.25. Operation during the winter period
3.3.26. Specifications of a power supply system of the diesel
3.3.27. Useful tips for owners of the diesel car
4. Cooling system
5. System of heating and ventilation
6. Fuel and exhaust system
7. System of launch of the engine
8. Coupling
9. Transmissions
10. Half shafts
11. Brakes
12. Suspension brackets and steering
13. Body
14. Electric equipment
 







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3.3.6. Check of the directing valves

At repair work on a head of cylinders with leaky valves it is not enough to process or replace valves and saddles. Besides it is necessary to check wear of the directing valves. Check is especially important for engines with a big run. Worn-out guides do not guarantee the central landing of valves and lead to a big consumption of oil. If wear is too big, guides of valves should be replaced (it is carried out in a workshop).

PERFORMANCE ORDER
1. Remove the valve.
2. Clear a valve guide a cylindrical brush.
3. Enter the valve into a guide from the combustion chamber and measure a side play moving the valve here and there. The side play of the valve should be measured parallel to the corresponding yoke since in this direction the greatest wear is shown.
4. For check apply a steel ruler. Practically there should be no gap. Boundary value: 0,2 mm.
5. If there is a micrometer and нутрометр, it is possible to measure the actual gap between a guide and a core of the valve.
6. If necessary replace a guide (it is carried out in a workshop).

Prevention

Do not establish a guide of the same diameter again at all.



Valve guide
The required value
Border
Admission
0,02 – 0,05 mm
0,10 mm
Release
0,04 – 0,07 mm
0,10 mm


3.3.5. Replacement of maslootrazhatelny caps of a core of the valve

3.3.7. Grinding in of a saddle of the valve