Renault Duster 2007 - Page 357

19B-12
EXHAUST
Catalytic converter: Removal - Refitting
K9K, and 796
19B
REFITTING
I - REFITTING PREPARATION OPERATION
a
a Use ABRASIVE PADS (see Vehicle: Parts and
consumables for the repair) (04B, Consumables -
Products) to clean the joint face of:
-the intermediate pipe,
-the catalytic converter in case of reuse,
-the turbocharger.
a Use SURFACE CLEANER and CLEAN CLOTHS
(see Vehicle: Parts and consumables for the re-
pair) (04B, Consumables - Products) to degrease
the joint face of:
-the intermediate pipe,
-the catalytic converter in case of reuse,
-the turbocharger.
a Always replace the exhaust flange sealing ring.
a parts always to be replaced: seal between turbo-
charger and catalytic converter
II - REFITTING OPERATION
a
a Fit:
-a new seal between the turbocharger and the cata-
lytic converter,
- the catalytic converter on the turbocharger.
a Pretighten in order:
- the bolt and nut of the upstream strut on the en-
gine,
- the downstream strut bolt and nut on the gearbox,
- the upstream strut bolts on the catalytic converter,
- the downstream strut bolt on the catalytic convert-
er,
- the catalytic converter nuts on the turbocharger.
a Torque tighten in order:
- the catalytic converter nuts on the turbocharger
(28 N.m),
- the upstream strut bolts on the engine (44 N.m),
- the downstream strut bolt and nut on the gear-
box (21 N.m),
- the upstream strut bolts on the catalytic con-
verter (26 N.m),
- the downstream strut bolt on the catalytic con-
verter (21 N.m).
a Make sure there is no contact between the catalytic
converter and the turbocharger oil return pipe.
a Proceed in the reverse order to removal.
a Torque tighten the exhaust flange bolts (21 N.m).
III - FINAL OPERATION
a Check:
- that all the exhaust pipe heat shields are in place
and properly attached,
- that there is no contact with the underbody.
a Start the vehicle.
WARNING
To ensure proper sealing, the gasket surfaces
must be clean, dry and not greasy (avoid any fin-
ger marks).
109399
Note:
If a stud loosens during this operation, coat it
with HIGH STRENGTH THREAD LOCK (see
Vehicle: Parts and consumables for the
repair) (04B, Consumables - Products).
Torque tighten the turbocharger output studs
(9 N.m).