The carburetor is equipped with two main dosing systems: the 1st and 2nd chambers, the idling system of the 1st chamber with a transition system, the transition system of the 2nd chamber, the blocking of the 2nd chamber, the power mode economizer, the econostat, the diaphragm accelerator pump, automatic mixed starter (bimetallic spring and electric heating). The pneumatic actuator of the air damper and the electric heating device of the inlet pipeline are used. The carburetor is equipped with a pneumatic throttle actuator of the first chamber, which controls its movement at idle and forced idle, as well as a pneumatic actuator of the throttle valve of the second chamber. In the forced idle mode, the forced idle economizer is activated.
Disassembly and assembly of the 2EZ carburetor is carried out similarly to the disassembly of the previously described carburetors. The difference lies in the removal of the two vacuum chambers. The design of the carburetor is shown in fig. 141 and 142, and the position of the jets in fig. 143 and 144.
Pic. 141. Carburetor cover PIERBURG 2ЕЗ: 1 - idle air jet and emulsion tube, 2 - power economizer tube, 3 - vacuum limiting device, 4 - starting device cover, 5 - fuel filter, 6 - needle valve, 7 - main fuel jet of the first chamber, 8 - main fuel jet of the second chamber, 9 - gasket
Pic. 142. Carburetor body PIERBURG 2ЕЗ: 1 - distributor; 2 - vacuum chamber of the throttle valve actuator of the second chamber; 3 - mixture enrichment valve at partial engine load; 4 - adjusting screw «quick» idle move; 5 - accelerating pump; 6 - gasket; 7 - limiter bolt; 8 - quantity adjusting screw with drive tube; 9 - adjusting bolt for the quality of the mixture; 10 - solenoid valve for stopping the supply of the mixture; 11 - to the temperature controller in the air filter; 12 - to the vacuum ignition timing controller
Pic. 143. Jets in the carburetor cover 2EZ: 1 - idle air jet; 2 - compensation air jet with emulsion tube FOR the first chamber (cannot be removed); 3 - compensation air jet with emulsion tube FOR the second chamber (cannot be removed); 4 - atomizer; A=1 mm
Pic. 144. The location of the jets at the bottom of the carburetor cover 2EZ: 1 - fuel jet of the main metering system of the first chamber; 2 - fuel jet of the main metering system of the second chamber; 3 - economizer tube; 4 - tube of the transition system of the second chamber
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