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:

Final drive oil level check (Every 12 000 miles (20 000 km) or 12 months)
1 Check the final drive oil level as follows. 2 Position the vehicle over a pit, or raise it at front and rear on ramps or axle stands. The vehicle must be level. 3 Wipe clean around the final dri ...

Rear roadspring (Van models) - removal and refitting
Removal 1 To remove the single leaf type rear roadspring from the Van, raise the rear of the vehicle and support it securely under the body members (see “Jacking and Vehicle Support”). Support th ...

Exhaust gas oxygen (HEGO) sensor (2.0 litre DOHC/1.6 & 1.8 litre (R6A type) CVH) - removal and refitting
Note: Do not touch the tip of the HEGO sensor as this will drastically shorten its service life. Note: A new sealing ring should be used on refitting. Removal 1 Ensure that the engine and the ex ...