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 renewal (Every 36 000 miles (60 000 km) or 3 years)
Caution: Before proceeding, note the precautions given in Chapter 3, Section 1. 1 Disconnect the battery negative lead. 2 It is preferable to drain the cooling system with the engine cold. If thi ...

Battery - testing and charging
Note: Refer to the precautions at the end of Section 1 before proceeding. Standard and low maintenance battery - testing 1 If the car covers a small annual mileage it is worthwhile checking the s ...

Weber 2V carburettor - adjustment
Idle speed and mixture adjustment 1 Refer to Chapter 1. Fast idle speed (XR3 models) 2 Remove the air cleaner as described in Section 2. 3 Have the engine at normal operating temperature, with ...