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:

Exhaust manifold nut check - RS Turbo models (Every 6000 miles or 6 months)
Check the tightness of the exhaust manifold securing nuts using a torque wrench. ...

Exhaust system check (Every 12 000 miles or 12 months)
With the vehicle raised on a hoist or supported on axle stands (see “Jacking and Vehicle Support”), check the exhaust system for signs of leaks, corrosion or damage and check the rubber mountings ...

Water pump - removal and refitting
OHV engines Note: A new gasket and suitable jointing compound must be used on refitting. Removal 1 Drain the cooling system as described in Chapter 1. 2 Slacken the three water pump pulley reta ...