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:

Auxiliary warning system components - removal and refitting
General 1 This system monitors the fluid levels and front brake pads for excessive wear. In the event of a fluid level dropping below the specified level, or the brake pads wearing down to the mi ...

Temperature gauge sender removal and refitting
Removal 1 On SOHC models, the temperature gauge sender is located on the front left-hand side of the cylinder head, just in front of the inlet manifold. On CVH models, the sender is located on th ...

Ignition system component check (Every 6000 miles or 6 months)
1 Where applicable, remove the distributor cap and thoroughly clean it inside and out with a dry lint-free cloth. Examine the four HT lead segments inside the cap. If the segments appear badly bur ...