Fuel pump — description, maintenance, inspection, removal and installation (Opel Ascona C)

Contents: Carburetor models ⬇ Injector models ⬇

Carburetor models

1. The fuel pump is located on the camshaft housing and is driven by a rod from the eccentric cam on the camshaft (see photo).

Photo 5.1. Fuel pump (engine 1.3).

2. The pump installation location is slightly different for 1.3 and 1.6 engines.

3. The fuel pump is a disposable semi-hermetic pump and cannot be repaired.

4. At a given frequency (see section "Routine maintenance") the pump mesh filter should be cleaned. To do this, remove the screw securing the pump cover.

5. Remove the lid, turn it over and remove the rubber sealing ring and mesh filter (see photo).

Photo 5.5. Fuel pump cover with filter and sealing ring.

6. Wipe the cover and wash the mesh filter in clean gasoline. The filter must be replaced at specified intervals.

7. Install the filter and sealing ring back into the cover. Place the cover on the pump and secure it with the screw. Be careful not to overtighten the screw.

8. If fuel does not reach the carburetor and it is known for sure that the fuel tank is not empty, the operation of the pump should be checked.

9. Disconnect the low voltage wire connecting the distributor to the ignition coil (so that there is no spark on the spark plugs).

10. Turn the key in the ignition switch so that the starter makes a few revolutions and watch how fuel flows from the open end of the fuel hose. The fuel must flow in regular, strong bursts. If this is not the case, the fuel pump is faulty and needs to be replaced.

11. To remove the pump, disconnect and plug the fuel hoses. Loosen and remove the bolts securing the pump and remove it from the camshaft housing (see photo).