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:

Spark plug renewal - RS Turbo models (Every 6000 miles or 6 months)
1 The correct functioning of the spark plugs is vital for the correct running and efficiency of the engine. It is essential that the plugs fitted are appropriate for the engine, and the suitable t ...

Instrument panel - removal and refitting
Models up to 1992 1 Disconnect the battery negative lead. 2 Remove the securing screws and unclip the lower and upper steering column shrouds. 3 Where applicable, remove the instrument panel illu ...

Throttle valve control motor (1.6 and 1.8 litre (R6A type) CVH) - removal and refitting
1.6 litre 1 Disconnect the battery negative lead. 2 Remove the air cleaner. 3 Disconnect the wiring connectors from the throttle valve control motor, and the throttle position sensor, pulling on ...