Tightening torques | |
Exhaust manifold studs | 8 Nm |
Nuts of hairpins of fastening of a final collector | 23 Nm |
Mounting bolt (6) strut on the cylinder block | 21 Nm |
stud nut (7) exhaust manifold brace | 21 Nm |
Exhaust manifold lower heat shield mounting bolts | 12 Nm |
Upstream oxygen sensor | 45 Nm |
Bolts of fastening of a flange of the final pipeline | 21 Nm |
Removing
Place the car on a two post lift.
Disconnect the battery.
Remove:
- intake silencer,
- air filter housing.
Remove the nuts (1) exhaust pipe flange.
Move the exhaust pipe back.
Disconnect connector (2) upstream oxygen sensor.
Remove:
- upstream oxygen sensor with tool (Mot. 1495-01).
- upper heat shield (3) exhaust manifold.
Remove brace (4) between the exhaust manifold and the cylinder block.
Remove:
- exhaust manifold nuts.
- an exhaust manifold.
On the workbench remove:
- bolts (5) mounting the lower exhaust manifold heat shield,
- lower exhaust manifold heat shield.
Installation
Parts that must be replaced:
- Exhaust manifold gasket.
- O-ring between exhaust manifold and catalytic converter.
Wipe with surface cleaner:
- exhaust manifold mating surface (in case of reuse),
- mating surface of the cylinder head.
Note: If the stud was loose when removed, apply a high strength threadlocker to the stud.
Install the exhaust manifold.
Torque tighten the exhaust manifold stud nuts in the order shown (23 Nm).
Torque tighten the exhaust manifold mounting studs (8 Nm).
Install a strut between the exhaust manifold and the cylinder block.
Torque tighten in the following order:
- fastening bolt (6) strut on the cylinder block (21),
- fastening stud nut (7) exhaust manifold brace (21).
Install the upper exhaust manifold heat shield.
Torque tighten the exhaust manifold lower heat shield mounting bolts (12 Nm).
Install the upstream oxygen sensor with the tool (Mot. 1495-01).
Torque tighten the upstream oxygen sensor (45 Nm).
Connect the upstream oxygen sensor connector.
Wrap bolts of fastening of a flange of the final pipeline.
Torque tighten the exhaust pipe flange mounting bolts (21 Nm).
Install:
- air filter housing,
- intake silencer.
Connect the battery.