Service of Nissan Sunny from 1991 to 1997 release in n-14 body.
1. Maintenance instruction
2. Maintenance
3. Engines
4. Cooling system
5. System of heating and ventilation
6. Fuel and exhaust system
6.1. Carburetor engines
6.2. Engines with system of injection of fuel
6.3. System of food / production of the fulfilled gases
6.4. System of decrease in toxicity of the fulfilled gases
6.4.1. Models with 1,4 and 1,6 liter engines
6.4.2. Models with 1,6 and 2,0 liter engines
6.4.2.1. System of decrease in emission of crankcase gases
6.4.2.2. Catalytic converter
6.4.2.3. The control system over release of vapors of fuel from fuel system
6.4.2.4. System of recirculation of exhaust gases
6.4.2.5. System of thermal neutralization
6.4.2.6. System of an admission of air in a final collector
6.4.2.7. System of decrease in toxicity of exhausts
6.4.2.7.1. System of decrease in toxicity of exhausts (idling mode)
6.4.2.7.2. Damper of a butterfly valve
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
 







6-4-2-7-2-dempfer-drosselnojj-zaslonki.html

6.4.2.7.2. Damper of a butterfly valve


Check

Lower a damper rod deep into of a damper of a butterfly valve and check that the rod fell slowly, then, release a rod and check that it quickly returned to a starting position. If is not present, the damper of a butterfly valve needs to be replaced.

Replacement

PERFORMANCE ORDER
1. On models with the carburetor engine turn off two fixing screws and remove a damper of a butterfly valve sideways of the carburetor.
2. On models with electronic injection of fuel turn off a fixing nut and remove a damper of a butterfly valve from a fixing arm of the case of a butterfly valve.
3. Installation is carried out upside-down removals. Upon completion of installation start the engine and warm up it up to the normal working temperature. Having left the engine to work in the idling mode, ask the assistant to press slowly a pedal of an accelerator and you watch a damper of a butterfly valve. Note the speed of operation of the engine at which the adjusting screw will concern the end of a rod of a damper. It has to happen at 2500±200 rpm. If adjustment is necessary, turn off a lock-nut and turn the adjusting screw as it is necessary. Again check the speed at which the adjusting screw concerns a damper rod, and tighten a lock-nut when the screw is correctly adjusted.


6.4.2.7.1. System of decrease in toxicity of exhausts (idling mode)

7. System of launch of the engine