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:

    Fuel pressure regulator - removal and refitting
    Removal 1 Remove the CFI unit as described in Section 8. 2 Remove the four screws securing the regulator housing to the CFI unit, then carefully lift off the housing and recover the ball, cup, la ...

    Crankcase emission control filter renewal - CVH engines (Every 24 000 miles or 2 Years)
    Carburettor and Central Fuel Injection (CFI) engines 1 Where fitted, the crankcase ventilation filter is located in the base of the air cleaner. 2 The filter can be renewed by pulling it out of t ...

    Initial start-up after overhaul or major repair
    1 Make a final check to ensure that everything has been reconnected to the engine and that no rags or tools have been left in the engine bay. 2 Check that oil and coolant levels are correct. 3 S ...