Carburetor — removal, overhaul and installation (models with a 2.4 l engine) (VW Lt 28)

12. Perform the procedures described in chapter 3, Section 9.

13. Remember that you are dealing with 2 fuel lines, the downstream and the downstream (see photo).

Photo 6B.13. Inlet and outlet fuel hoses on a 2B6 carburetor (shown by arrows).

Before disconnecting the fuel hoses, they must be marked accordingly.

Carburetor - overhaul

Photo 6B.14. Carburetor mounting bolts to manifold (shown by arrows).

15. The design of the carburetor is shown in the figure 13.34.

Figure 13.34. Disassembled 2V6 carburetor (section 6B): 1 - Idle air/fuel jet, chamber 1; 2 - Auxiliary fuel/air jet; 3 - Connection point of the fuel supply line; 4 - Top cover; 5 - Main jet (chamber 1); 6 - Float chamber needle valve; 7 - Float; 8 - Axis; 9 - Choke block cover; 10 - Air damper release block; 11 - Spray tube; 12 - Carburetor body; 13 - O-ring with circular cross-section; 14 - Adjusting screw; 15 - Quantity screw; 16 - O-ring with circular cross-section; 17 - Air bypass cut-off valve; 18 - O-ring with circular cross-section; 19 - Air jet of the transition system; 20 - Idle air/fuel jet, chamber 2; 21 - Pump lever; 22 - Pump feed adjusting nut; 23 - Main jet (chamber 2); 24 - Gasket; 25 - Pump thrust; 26 - Support ring; 27 - Pump piston; 23 - Pump cuff; 29 - Fuel jet of the transition system; 30 - Pump spring; 31 - Vacuum block, chamber 2; 32 - Bracket; 33 - Gasket; 34 - Throttle valve basic adjustment stop screw; 35 - Lower part of the carburetor; 36 - Quality screw.

16. The carburetor can be disassembled into 3 main units (see chapter 3, section 10).

Figure 13.35. Position of jets in the top cover of the 2V6 carburetor (section 6B): 1 and 2 - Auxiliary fuel/air jet; 3 - Air jet with emulsion tube - chamber 1 (the jet cannot be removed); 4 - Idle air/fuel jet - chamber 1; 5 - Idle air/fuel jet - chamber 2; 6 - Air jet with emulsion tube - chamber 2 (the jet cannot be removed); 7 - Air jet of the transition system.