Renault F4R - Page 447

12B-11
TURBOCHARGING
Turbocharger: Removal - Refitting
K9K, and 830 or 832
12B
a Remove:
-the turbocharger nuts (1) ,
-the turbocharger,
-the turbocharger seal.
REFITTING
I - REFITTING PREPARATION OPERATION
a
a parts always to be replaced: seal between ex-
haust manifold and turbocharger (10,09,01,07).
a Use ABRASIVE PADS to clean the joint faces:
- the exhaust manifold,
- of the turbocharger if reused.
a Use SURFACE CLEANER (see Vehicle: Parts
and ingredients for the repairwork) (04B, Consu-
mables - Products) and CLEAN CLOTHS to clean
and degrease the joint faces:
- the exhaust manifold,
- of the turbocharger if reused.
a When replacing the turbocharger studs, torque tigh-
ten:
- the turbocharger studs on the exhaust manifold
(9 Nm),
- the turbocharger stud on the turbocharger (9
Nm).
II - REFITTING OPERATION FOR PART
CONCERNED
a Refit:
-a new seal between the exhaust manifold and the
turbocharger on the exhaust manifold,
- the turbocharger.
a Torque tighten the turbocharger nuts (28 Nm).
a Connect the turbocharger pressure regulating valve
control hose.
III - FINAL OPERATION
a Refit:
- the turbocharger oil supply pipe (see 12B, Turbo-
charging, Turbocharger oil pipe: Removal - Re-
fitting, page 12B-22) ,
-the turbocharger air outlet pipe (see 12B, Turbo-
charging, Intercooler air inlet pipe: Removal -
Refitting, page 12B-41) ,
- the turbocharger oil return pipe (see 12B, Turbo-
charging, Turbocharger oil pipe: Removal - Re-
fitting, page 12B-22) ,
- the catalytic converter (see 19B, Exhaust, Cataly-
tic converter: Removal - Refitting, page 19B-17)
.
K9K, and 830
136391
WARNING
Ensure that no foreign bodies enter the turbine or
compressor during the refitting operation.
Check that the turbocharger oil return pipe is not
partially or completely blocked by scale. Check
that there are no leaks. If there are, replace the
part.
WARNING
Following a turbocharger fault, check that the
intercooler and air circuit assembly are not full of
oil. If they are, remove them and clean them with
a cleaning tray or station and dry them with a
compressed air gun.