Downloaded from www.Manualslib.com manuals search engine TURBOCHARGING
Turbocharger
12
12-6
REFITTING
For refitting operations, use the same procedure as for
removal in reverse.
IMPORTANT: you must change the copper gasket at
the turbo oil inlet connection.
IMPORTANT:
Before starting the engine disconnect the pressure
regulator manifold on the high pressure pump.
Then run the starter motor until the oil pressure
warning light goes out (wait a few seconds).
Reconnect the regulator, preheat and start the engine.
Run the engine at idling speed and check that there
are no leaks at the oil connections.
Erase the fault and check the turbocharging pressure
solenoid valve sensor.
16869S
Special precautions
!Before refitting, make sure that the lubrication is
correct for the turbocharger bearings. To do this
activate the starter motor having first
disconnected the high pressure manifold regulator
(do not start the engine) (erase the computer
memory). Sufficient oil should arrive via the oil
pressure pipes (place a container below). If this is
not the case, change the lubrication pipe.
!Ensure that no foreign bodies enter the turbine or
compressor during the refitting operation.
!If there has been a fault in the turbocharger, check
that the air-air exchanger is not full of oil.
If the air-air exchanger is full of oil, it must be
removed, flushed with a cleaning agent and then
left to drain properly.
!Check that the turbocharger oil return pipe is not
partially or completely blocked by scale. Check
also that it is perfectly tight. If not, replace it.
Downloaded from www.Manualslib.com manuals search engine DIESEL EQUIPMENT
Pressure regulator
13
13-39
Pressure regulator
TIGHTENING TORQUES (In daN.m or/and °)
Regulator bolt 0.9 ± 0.1
IMPORTANT: before any intervention, connect
the after-sales diagnostic tool, query the injection
computer and check that the injection rail is not
under pressure. Take note of the fuel temperature.
PRESSURE REGULATOR (2)
REMOVAL
Disconnect the battery.
Remove the regulator connector.
Remove the retaining bracket for the diesel
temperature sensor.
Unscrew the regulator mounting bolts.
Remove the regulator by turning in an anticlockwise
direction (do not use any tools as a lever when
removing the pump regulator).REFITTING
Change the seals.
Dampen the seals with clean diesel.
Replace the regulator in the pump by turning it in an
anticlockwise direction (do not use any tools as a lever
when replacing the pump regulator).
Fit the mounting bolts then tighten to torque.
Connect the connector. YOU SHOULD FOLLOW THE CLEANNESS
INSTRUCTIONS CLOSELY.
After any intervention, check that there are no leaks in the diesel circuit.
Start the engine at idling speed until the fan starts up, then accelerate
several times under no load.
