Opel Corsa B 1993–2000 Service and Repair Manual: Carburettor - description

1. Several types and makes of carburettor are fitted to the vehicles covered by this manual.

All are of the downdraught type.

2. The 32 TL carburettor fitted to the 1.2 engine is a fixed jet, single barrel instrument. The 35 PDSI and 1B1 fitted to low compression versions of the 1.3 engine are similar.

3. The 2E3 carburettor fitted to normal compression versions of the 1.3 engine is a fixed jet, twin barrel instrument. Opening of the throttle valves is sequential; the primary throttle valve is opened mechanically, but the secondary throttle valve is opened by vacuum developed in both venturis. Primary and secondary transition systems, and a part load enrichment valve, ensure efficient operation under all speed and load conditions.

4. The GM Varajet ll carburettor fitted to 1.6 models is also a twin barrel type, but the main fuel jet is controlled by a tapered needle valve.

The design is well proven and has been used on several earlier models.

5. All carburettors have a bypass system for providing idle mixture, and an accelerator pump for mixture enrichment when the throttle is opened rapidly.

6. When an automatic choke is fitted, the choke cover is heated electrically when the engine is running; as the cover warms up, the choke is released. On the 2E3 carburettor the choke cover is also heated by engine coolant.

Both types of automatic choke need to be 'primed' by depressing and releasing the accelerator pedal before starting the engine from cold.

    Choke cable - removal, refitting and adjustment
    Removal 1. Disconnect the battery earth lead. 2. Tap out the small pin which secures the choke control knob to the cable end fitting. Unscrew and remove the knob. 3. Undo the retaining ring or ...

    32 TL carburettor - adjustments
    Note: Under normal operating conditions only the carburettor idle adjustments will need attention. Checking and adjustment of the following settings is not a routine operation and should only be n ...

    See also:

    Opel Corsa Owners Manual. Engine coolant temperature, Preheating and diesel particle filter
    Engine coolant temperature illuminates red. Illuminates when the engine is running Stop, switch off engine. Caution: Coolant temperature too high. Check coolant level. If there ...