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:

Pistons and connecting rods - removal and refitting
1.8 litre (R2A type) Removal 1 With the engine removed from the vehicle, remove the sump and the cylinder head. 2 Check the big-end caps for identification marks and if necessary use a centre-pun ...

Cylinder head - removal and refitting (engine removed)
Note: The cylinder head bolts must always be renewed after slackening, and a new cylinder head gasket and camshaft cover gasket must be used on refitting. If the engine has recently run, the cylin ...

Fuel pump - removal and refitting
Caution: Refer to the precautions in Section 1 before proceeding. Mechanical pump Note: A new gasket must be used when refitting the pump. 1 Disconnect the battery negative lead. 2 For improved ...