Details of the carburetor 1B3
- 1 - heating element;
- 2 - carburetor body;
- 3 - sealing ring;
- 4 - quality adjusting screw (composition) mixtures;
- 5 - solenoid valve;
- 6 - economizer power modes;
- 7 - adjusting screw for the amount of the mixture;
- 8 - accelerating pump;
- 9 - valve seat;
- 10 - spring;
- 11 - piston cuff;
- 12 - accelerator pump piston;
- 13 - piston guide;
- 14 - gasket;
- 15 - float axis;
- 16 - float;
- 17 - main fuel jet;
- 18 - carburetor cover;
- 19 - econostat fuel jet;
- 20 - idle fuel jet;
- 21 - pneumatic actuator of the air damper;
- 22 - needle valve;
- 23 - automatic starting device;
- 24 - gasket;
- 25 - cover;
- 26 - accelerator pump sprayer;
- 27 - spring;
- 28 - ball valve sprayer;
- A - starting clearance of the air damper
Order of execution
1. Disconnect the accelerator pump drive lever.
2. Unscrew the screws securing the carburetor cover to the body and remove the cover. Remove gasket.
3. Remove the float shaft, remove the float and remove the needle valve.
4. Unscrew the main fuel jet.
5. Unscrew the idle fuel jet and the econostat fuel jet.
6. Remove the automatic starter by unscrewing the mounting bolts.
7. Take out the accelerator pump.
8. Unscrew the solenoid valve.
9. Remove heating element.
10. Unscrew the accelerator pump nozzle. Remove spring and ball valve.
11. Unscrew the mixture quality adjustment screw and the mixture quantity adjustment screw.
12. Remove the power mode economizer by unscrewing the mounting bolts.
13. Wash all parts and assemblies of the carburetor in gasoline. In the presence of abundant resinous deposits on the parts, wash them in acetone or thinner for nitro paints. It is forbidden to clean the jets with a wire, even a soft one, so as not to disturb the calibration. Blow out the washed parts and channels of the carburetor with compressed air. Replace torn gaskets and sealing rings, as well as failed parts.
14. Assemble the carburetor in reverse order.
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