Inlet manifold - removal and refitting
Removal
1.2 litre models
1. The manifold may be removed with or without the carburettor. In either case and follow the steps preparing for carburettor removal.
2. Disconnect the brake servo vacuum hose.
3. Remove the three screws which secure the manifold to the cylinder head (see illustration).

Three screws (arrowed) securing inlet manifold - 1.2 litre models
4. Remove the manifold and recover the gasket.
1.3, 1.4 and 1.6 litre models
5. Drain the cooling system.
6. Remove the alternator.
7. Release the coolant pipe from the inlet manifold and clutch housing.
8. On 1.3 models, disconnect the coolant temperature gauge lead.
9. Refer to Section 18 and either remove the carburettor, or follow the steps preparing for carburettor removal.
10. Disconnect the brake servo vacuum hose.
11. Remove the securing nuts and withdraw the manifold. Recover the gasket.
Refitting
12. Refit in the reverse order to removal, using a new gasket. Tighten the manifold nuts progressively to the specified torque. On 1.3, 1.4 and 1.6 litre models refill the cooling system and adjust the alternator drivebelt.
Test yourself
A quick Opel Corsa quiz: every answer comes with an explanation and a link to the manual page.