Exhaust Manifold Replace Opel Antara I

Exhaust Manifold Replace

Remove

1. Disconnect the negative battery cable.
2. Disconnect the front heated oxygen sensor connector.

3. Remove the exhaust manifold heat shield retaining bolts.
4. Remove the exhaust manifold heat shield.

5. Remove the primary catalytic converter-to-exhaust front pipe retaining nuts.
6. Remove the exhaust front pipe mounting bracket bolt and nut.

7. Remove the exhaust manifold retaining nuts in the sequence shown.
8. Remove the exhaust manifold.
9. Remove the exhaust manifold gasket.
10. Clean the sealing surfaces of the exhaust manifold and the cylinder head.

Install

1. Install a new exhaust manifold gasket.
2. Install the exhaust manifold.
3. Install the exhaust manifold retaining nuts and tighten in the sequence shown.

Tighten

Tighten the exhaust manifold retaining nuts to 22 N•m (16 lb-ft).

4. Install the exhaust front pipe-to-primary catalytic converter. Refer to Exhaust Front Pipe Replace .

Tighten

Tighten the primary catalytic converter-to-exhaust front pipe retaining nuts to 40 N•m (30 lb-ft).

Tighten the exhaust front pipe mounting bracket bolt and nut to 40 N•m (30 lb-ft).

5. Install the exhaust manifold heat shield.

Tighten

Tighten the exhaust manifold heat shield bolts to 15 N•m (11 lb-ft).

6. Connect the front heated oxygen sensor connector.
7. Connect the negative battery cable.