Fuel pump - testing, removal and refitting

Fuel and exhaust systems - carburettor models / Fuel pump - testing, removal and refitting

Testing
1 Pump location is dependent on engine type and is as follows:
a) 1.05 and 1.3 litre engines - The pump is located on the right-hand side of the engine, forward of the carburettor (see illustration). Mounted on the cylinder head, it is driven indirectly from the camshaft.

5.1 Fuel pump location - 1.3 litre

b) 1.6 and 1.8 litre engines - The pump is located on the side of the cylinder block, next to the oil filter mounting bracket. It is driven direct from the intermediate shaft.

2 If the pump is suspected of malfunctioning, disconnect the supply pipe from the carburettor (air cleaner removed) and the LT lead from the coil positive terminal. Ensure that there is fuel in the tank. Turn the engine on the starter while holding a wad of rag near the fuel pipe. If the pump is operating correctly, well defined spurts of fuel should be ejected from the pipe.

3 If the pump is malfunctioning then it must be renewed, as it is not possible to service or repair it. However, prior to removal of the pump, check the in-line filter for blockage.

Removal
4 To remove the fuel pump, first identify the hoses for position then disconnect them from the pump (see illustrations).

5.4a Fuel line attachments – 1.05 and 1.3 litre

5.4b Fuel pump and line connections – 1.6 and 1.8 litre

5 Using a suitable splined or Allen key, unscrew the pump retaining bolts and withdraw the unit from the cylinder head or cylinder block (as applicable). Remove the sealing ring and, if applicable, note the earth lead location.

6 Clean the mating faces of the pump and cylinder head or cylinder block/seal flange.

Refitting
7 Refitting is a reversal of the removal procedure. Renew the seal ring and, where crimped type hose clips were used, change them to screw type clips.

8 On completion, check all hose connections with the engine running and look for any sign of fuel leakage.