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:

Ignition system component check (Every 24 000 miles (40 000 km) or 2 years)
1 Before disturbing any part of the ignition system, disconnect the battery negative lead. 2 Identify and clearly mark all HT leads before disconnecting them from the spark plugs. 3 Refer to the a ...

Pistons and connecting rods - removal and refitting
Removal 1 Remove the sump and the cylinder head. 2 Check the big-end bearing caps for identification marks and if necessary use a centre-punch to identify the caps and corresponding connecting ro ...

Hydraulic unit (ABS) - removal and refitting
Note: A new gasket must be used between the hydraulic unit and the bulkhead on refitting. Caution: Refer to the precautions in Section 1. Removal 1 Disconnect the battery negative lead. 2 Depre ...