Fuel system (1.6 and 1.8 litre (R6A type) CVH) - depressurisation

Remember to depressurise the fuel system before loosening any connections.

Refer to the precautions in Section 1 before proceeding. The fuel system will remain pressurised after the engine is switched off.

1 Disconnect the battery negative lead.

2 Remove the air cleaner assembly.

3 Position a suitable container (or a sufficient quantity of absorbent cloth) beneath the fuel inlet connection on the CFI unit.

4 Use an open-ended spanner on the flats of the inlet union screwed into the CFI unit, to prevent it from turning while the inlet pipe union is loosened (see illustration). Allow all pressure/fuel seepage to dissipate before fully unscrewing the union if it is to be disconnected, or tightened if another part of the system is to be worked on.

4.4 CFI unit fuel inlet union (arrowed)
4.4 CFI unit fuel inlet union (arrowed)

5 The system will remain depressurised until the fuel pump is primed prior to starting the engine. Remove the container or cloth, as applicable, on completion.

Fuel filter - renewal

Refer to Chapter 1, Section 41.

    See also:

    Pistons and connecting rods - removal and refitting
    Note: New connecting rod bolts and a new oil pick-up pipe gasket must be used on refitting. Removal 1 Remove the sump and the cylinder head. 2 Unscrew the two securing bolts, and remove the oil p ...

    General information and precautions
    General information The system is best described by dividing it into four separate sub-systems: air, fuel, engine management (EEC IV system), and ignition. Air system The air system consists of ...

    Weber 2V carburettor - adjustment
    Idle speed and mixture adjustment 1 Refer to Chapter 1. Fast idle speed (XR3 models) 2 Remove the air cleaner as described in Section 2. 3 Have the engine at normal operating temperature, with ...