Carburettor - removal and refitting

Fuel and exhaust systems - carburettor models / Carburettor - removal and refitting

Removal
1 Disconnect the battery earth lead.

2 Remove the air cleaner unit.

3 Disconnect the accelerator cable from the carburettor.

4 Disconnect the wiring from the following, as applicable:
a) Fuel cut-off solenoid b) Bypass air cut-off valve c) Part throttle channel heater d) Automatic choke control unit e) Earth point
5 Drain off half the engine coolant then disconnect the coolant hoses from the automatic choke unit and the expansion element (where applicable) (see illustrations).

13.5a Pierburg/Solex 2E3 carburettor, manifold and associated components

13.5b Pierburg/Solex 2E2 carburettor, manifold and associated components

6 Disconnect the fuel supply and return hoses at the carburettor/fuel reservoir, as necessary, and plug or clamp the hoses to prevent fuel leakage. Note the connections in case of confusion when refitting.

7 Disconnect the vacuum hoses and note their connections.

8 Unscrew the through-bolts or retaining nuts, as applicable, and carefully remove the carburettor from the inlet manifold (see illustration).

13.8 Carburettor securing bolts (arrowed) – Pierburg/Solex 2E3

9 To remove the intermediate flange from the manifold, undo the four nuts on the manifold underside and lift the flange clear.

Refitting
10 Refitting is a reversal of the removal procedure. Ensure that the inlet manifold, intermediate flange and carburettor mating faces are clean and use new gaskets.

11 On completion, top-up the cooling system, restart the engine and check for fuel and coolant leaks.

12 Adjust the carburettor as necessary.