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:

Engine Coolant Temperature (ECT) sensor - removal and refitting
Removal 1 The ECT sensor is screwed into the inlet manifold. 2 Disconnect the battery negative lead. 3 Partially drain the cooling system as described in Chapter 1. 4 Disconnect the sensor wirin ...

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 ...

Rear hub bearings - renewal
1 Raise and support the rear of the vehicle on stands (see “Jacking and Vehicle Support”). Remove the roadwheel and release the handbrake. 2 On fuel-injected models and Van versions undo the reta ...