Removal and installation of the silencer and catalytic converter

Removal and installation of the silencer and catalytic converter

We remove the silencer and catalytic converter in the event of burn-through or when dismantling assemblies that require these parts to be removed.

Tools required: hammer, 10 and 13 mm spanners, pliers, WD-40 penetrating fluid.

We place the vehicle over the inspection pit or on the lift.

Important: we apply WD-40 penetrating fluid or brake fluid to the threaded parts of the bolts and nuts.

Replacement of the exhaust gas catalytic converter

Attachment of the catalytic converter to the turbine pipe adapter — Fig. 1. Attachment of the catalytic converter to the turbine pipe adapter.

We slacken the nut of the clamp securing the catalytic converter inlet pipe to the turbine pipe adapter.

Slackening of the clamp nut — Fig. 2. Slackening of the clamp nut.

It is more convenient to slacken this nut from the engine bay side.

Slackening of the nuts securing the catalytic converter pipe to the silencer — Fig. 3. Slackening of the nuts securing the catalytic converter pipe to the silencer.

We slacken the two nuts securing the catalytic converter pipe to the silencer.

We separate the flanges and withdraw the sealing ring.

Slackening of the nut securing the catalytic converter bracket — Fig. 4. Slackening of the nut securing the catalytic converter bracket.

We slacken the nut of the bolt securing the catalytic converter bracket to the bracket on the gearbox.

We remove the catalytic converter.

Important: we install the catalytic converter in the reverse order.

Replacement of the silencer

Suspension of the silencer on the frame brackets — Fig. 5. Suspension of the silencer on the frame brackets.

The silencer is suspended on the frame brackets by means of two clamps.

Attachment of the clamp through rubber cushions — Fig. 6. Attachment of the clamp through rubber cushions.

Each clamp is secured through two rubber cushions.

Slackening of the nuts securing the silencer to the catalytic converter pipe — Fig. 7. Slackening of the nuts securing the silencer to the catalytic converter pipe.

We slacken the two nuts securing the silencer to the catalytic converter pipe.

Slackening of the nuts of the clamp clamping bolts — Fig. 8. Slackening of the nuts of the clamp clamping bolts.

We slacken the nuts of the clamping bolts and withdraw the bolts.

Removal of the silencer — Fig. 9. Removal of the silencer.

We remove the silencer.

Removal of the sealing ring — Fig. 10. Removal of the sealing ring.

We remove the sealing ring.

Silencer mounting clamps on the bracket — Fig. 11. Silencer mounting clamps on the bracket.

If necessary, we remove the silencer mounting clamps from the bracket.

Removal of the rubber cushion from the bracket — Fig. 12. Removal of the rubber cushion from the bracket.

We slide the cushion off the bracket and remove it. We also remove the other cushions.

Slackening of the bolts securing the bracket to the side member — Fig. 13. Slackening of the bolts securing the bracket to the side member.

We unscrew the two bolts securing the bracket to the side member and remove the bracket.

Removed bracket — Fig. 14. Removed bracket.

Important: we install all removed parts in the reverse order.

Important: we lubricate the threaded parts of the bolts and nuts with graphite grease.