Nissan Sunny service from 1991 to 1997 of release in n-14 body.
1. Maintenance instruction
2. Maintenance
3. Engines
4. Cooling system
5. Heating and ventilation system
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 karterny gases
6.4.2.2. Catalytic converter
6.4.2.3. The monitoring system over allocation паров fuels from fuel system
6.4.2.4. System of a retsirkulyatsiya 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. Butterfly valve damper
7. System of start-up of the engine
8. Coupling
9. Transmissions
10. Semi-axes
11. Brakes
12. Suspension brackets and steering
13. Body
14. Electric equipment
 







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6.4.2.7.2. Butterfly valve damper


Check

Lower a damper rod deep into 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, it is necessary to replace a damper of a butterfly valve.

Replacement

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


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

7. System of start-up of the engine