5.18.8. Removal and installation of throttle knot

Can be signs of not completely closed butterfly valve the increased frequency of rotation of a bent shaft idling and the increased fuel consumption, but not completely opening — the engine does not develop full capacity.
At these malfunctions at first try to adjust the drive of a butterfly valve or replace a cable (see. "Check and adjustment of a cable of the drive of a butterfly valve"). If it does not result in positive result, replace throttle knot.
It will be required to you: a face key (head) "on 13", the screw-driver with a crosswise edge.

Prevention
It is forbidden to turn out screws 2 fastenings of a butterfly valve. If then they are badly wrapped and zakontrena, the turned-out screw can get to the cylinder of the engine and put it out of action. The provision of a butterfly valve is adjusted at the plant therefore the adjusting screw of 1 butterfly valve is not recommended to be touched.

1. Merge liquid from the engine cooling system (see. "Replacement of cooling liquid").

Note
At the known skill cooling liquid can be not merged. On the cooled-down engine pit excessive pressure in the engine cooling system, having turned off, and then having twirled a stopper of a broad tank. Prepare the traffic jams suitable by the size which muffle hoses at once after a detachment them from throttle knot. Loss of cooling liquid at such way will be insignificant.

2. Disconnect a wire from the minus plug of the rechargeable battery.
3. Open a cowl and remove a decorative casing of the engine (see. "Removal and installation of a decorative casing of the engine").
4. Having wrung out clamps, disconnect blocks of plaits of wires from the sensor of provision of a butterfly valve …
5. … and idling regulator.
6. Disconnect the airbringing sleeve from throttle knot (see. "Cleaning of system of ventilation of a case").
7. Weaken fastening of a collar of the first hose of heating of the case of throttle knot …
8. … also remove a hose.
9. Weaken fastening of a collar of the second hose of heating of the case of throttle knot …
10. … also remove a hose.
11. Weaken a fastening collar …
12. … also disconnect a hose of a small branch of system of ventilation of a case from the union of throttle knot.
13. Weaken a collar of fastening of a hose of a purge of an adsorber …
14. … also remove a hose.
15. Disconnect a cable of the drive of a butterfly valve from the sector of throttle knot (see. "Check and adjustment of a cable of the drive of a butterfly valve").
16. Turn off two nuts of fastening of throttle knot …
17. … also remove throttle knot from hairpins of an inlet collector.
18. If when replacing throttle knot on new knot the regulator of idling and the sensor of provision of a butterfly valve are not installed, rearrange them from old knot.
For this purpose unscrew two screws of their fastening.

Note
Replace the damaged porolonovy ring established under the sensor of provision of a butterfly valve.

19. Clear the polluted throttle knot liquid for cleaning of carburetors, previously having removed from it the sensor and the regulator. Clear also polluted regulator and the sensor (it is forbidden to use solvents for cleaning).
20. Establish throttle knot and all removed details as it should be, the return to removal.
21. Adjust the drive of a butterfly valve (see. "Check and adjustment of a cable of the drive of a butterfly valve").