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 (engine removed)
Note: Up to early 1984, splined type cylinder head bolts were used, and from early 1984, size T55 Torx bolts were used. Torx type bolts must always be renewed after slackening. The two types of bo ...

Idle Speed Control Valve (ISCV) - removal, cleaning and refitting
Removal 1 Disconnect the battery negative lead. 2 Disconnect the valve wiring plug (see illustration). 12.2 Idle speed control valve - 1.6 EFI engine A Wiring plug B Securing bolts 3 Unscrew t ...

Carburettor (Weber 2V TLD) - removal and refitting
Caution: Refer to the precautions in Section 1 before proceeding. Note: A new gasket must be used when refitting the carburettor. A tachometer and an exhaust gas analyser will be required to chec ...