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
3.3. The diesel engine
3.3.1. Technical characteristics
3.3.2. A gear belt
3.3.3. Replacement of a lining of a head of cylinders
3.3.4. Valves
3.3.5. Replacement маслоотражательных caps of a core of the valve
3.3.6. Check of directing valves
3.3.7. Grinding in of a saddle of the valve
3.3.8. Processing of a head of cylinders / of valves
3.3.9. Check / adjustment of backlashes of valves
3.3.10. Compression check
3.3.11. A klinovyj belt
3.3.12. Malfunctions of the engine
3.3.13. System of greasing of the engine
3.3.14. Oil a contour
3.3.15. Removal and pallet installation картера
3.3.16. The oil pump
3.3.17. Cooling system
3.3.18. The injection device
3.3.19. Spark plugs
3.3.20. The power supply system
3.3.21. Check / replacement of the valve of a stopping delivery of fuel
3.3.22. Number of turns of idling and the maximum number of turns
3.3.23. Atomizers
3.3.24. The beginning of giving of the fuel pump of a high pressure
3.3.25. Operation during the winter period
3.3.26. Specifications of the power supply system of a diesel engine
3.3.27. A good advice for owners of the diesel car
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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3.3.9. Check / adjustment of backlashes of valves

For indemnification of various thermal expansions in the distributive mechanism there should be a backlash.

At too small backlash phases timing change, compression is worse, capacity of the engine falls, engine work is non-uniform. In extreme cases valves can be damaged, or saddles and valves can scorch.

At too big backlash there are strong mechanical noise, phases timing change, the engine because of not enough filling of cylinders gives smaller capacity, engine work is non-uniform.

Adjustment of valves only then reaches desirable result if valves faultlessly condense, have no inadmissible люфта in directing and the ends of cores are not brought down.

The backlash of valves is necessary for checking and regulating after repair, at occurrence of noise in the distribution mechanism. Within the limits of maintenance service to check a backlash of valves it is not required. The diesel engine of 2,0 l has hydraulic pushers which automatically choose a backlash of valves. At these engines the backlash of valves is not regulated. At unusual noise in the mechanism of valves it is necessary to check up hydropushers (it is carried out in a workshop).

The backlash of valves should be checked or be regulated on the heated-up engine, however it can be regulated and on the cold engine. In this case it should be checked up on the heated-up engine.

Check conditions

PERFORMANCE ORDER
1. Start the engine and warm up, while the temperature of a cooling liquid on will reach 80 –90 With.
2. Stop the engine.
3. For simplification of work remove капильные candles.
4. Unscrew a cover of a head of cylinders.
5. Establish a transmission in neutral position, tighten a manual brake.
6. Establish the piston of 1st cylinder in position ВМТ.
7. Simultaneously in position ВМТ there is 4th piston. Cylinders are considered from right to left. The cylinder 1 is on the party клинового an engine belt.


3.3.8. Processing of a head of cylinders / of valves

3.3.10. Compression check