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:

Throttle housing - removal and refitting
Note: During manufacture the throttle plate is adjusted so that it is fractionally open, to avoid the possibility of it jamming shut, and it must not be repositioned. Idle speed adjustment is prov ...

Engine/manual gearbox assembly - removal and separation
Note: A suitable hoist and lifting tackle will be required for this operation. 1.8 litre (R2A type) Removal 1 Proceed as described in Section 8, paragraphs 1 to 15 inclusive. 2 Working inside th ...

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