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:

Cylinder head - removal and refitting
Carburettor engines Removal Note: The cylinder head must only be removed when the engine is cold. New cylinder head bolts and a new gasket must be used on refitting. 1 Disconnect the battery ear ...

Load apportioning valve (anti-lock braking system) - removal and refitting
Note: Before starting work, refer to the warning at the beginning of Section 3 concerning the dangers of hydraulic fluid. Removal 1 Raise the car on a hoist or drive the rear of the car up on ram ...

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 ...