Manifolds, exhaust and emission control systems

All models utilise a light alloy inlet manifold which on carburettor models is coolant heated to improve the atomisation of the fuel/air mixture.

The exhaust manifold is of cast iron construction and incorporates a heated air box as part of the air inlet system on carburettor models.

See also:

Crankshaft and main bearings - removal and refitting
1.8 litre (R2A type) Removal 1 With the engine removed from the vehicle, remove the timing belt, crankshaft sprocket and thrustwasher. 2 Remove the pistons and connecting rods. If no work is to ...

Heated Exhaust Gas Oxygen (HEGO) sensor - removal and refitting
Note: A new sealing ring will be required on refitting. Removal 1 Apply the handbrake, then jack up the front of the vehicle and support it on axle stands (see “Jacking and Vehicle Support”). 2 ...

Fuel system - depressurising
Warning: The fuel system will remain pressurised after the engine is switched off. Comply with all relevant safety precautions during this operation and refer to the “Safety first!” Section at th ...