10A-103
ENGINE AND CYLINDER BLOCK ASSEMBLY
Engine - gearbox assembly: Removal - Refitting
K4M
10A
-the rubber pad mounting from the suspended en-
gine mounting on the gearbox.
aRemove the right-hand suspended engine mounting
(see 19D, Engine mounting, Right-hand sus-
pended engine mounting: Removal - Refitting,
page 19D-13) .
aLift the vehicle to remove the "engine and gearbox"
assembly.
REFITTING
I - REFITTING PREPARATION OPERATION
aFor standard engine replacement (see Standard re-
placement) (Technical Note 6023A, 10A, Engine
and peripherals).
II - REFITTING OPERATION
aPosition the "engine and gearbox" assembly in the
body.
aRefit the right-hand suspended engine mounting
(see 19D, Engine mounting, Right-hand sus-
pended engine mounting: Removal - Refitting,
page 19D-13) .
aRefit the rubber pad mounting from the suspended
engine mounting on the gearbox.
aTorque tighten the rubber pad mounting bolts for
the suspended engine mounting on the gearbox
(21 N.m).
aRefit the suspended engine mounting rubber pad.
aTorque tighten:
-the bolts of the suspended mounting rubber
pad (62 N.m),
-the suspended engine mounting shaft nut (62
N.m).
III - FINAL OPERATION
aRemove the.
aRemove the blanking plugs.
aConnect:
-the union of the brake servo vacuum pipe,
-the « compressor - condenser » connecting pipe,-the « compressor - intermediate pipe » connecting
pipe,
-the pressure sensor connector,
aConnect the hose on the coolant pump inlet pipe.
aFit the hose clip on the coolant pump inlet pipe using
the (Mot. 1448).
aRefit the earth nuts.
aClip:
-the relay plates on the engine compartment con-
nection unit,
-the fuse holders.
aConnect the fuses.
aRefit the engine compartment connection unit on the
body.
aConnect the connector to the engine compartment
connection unit.
aRefit the engine compartment connection unit cover.
aClip:
-the wiring on the engine cooling fan assembly,
-the cooling radiator top and bottom hoses on the
engine cooling fan assembly.
aConnect:
-the engine cooling fan assembly resistor connec-
tor,
-the engine cooling fan assembly connector.
aRemove the blanking plug from the fuel supply pipe
opening and the injector rail fuel opening.
aReconnect the fuel supply pipe.
aClip the fuel supply pipe in place.
aConnect:
-the fuel vapour absorber bleed solenoid valve con-
nector,
-the fuel vapour absorber bleed solenoid valve pipe.
aFit the gearbox control cables.
aClip the manual gearbox control cables onto:
-the gear selectors,
-the cable sleeve stops.
aRemove the blanking plug from the hydraulic clutch
control pipe opening and the opening of the clutch
thrust bearing.
aConnect the hydraulic clutch control pipe.
aClip the hydraulic clutch control pipe on the gearbox. Note:
Check no component obstructs the movement of
the body around the engine - gearbox assembly.
11A-107
TOP AND FRONT OF ENGINE
Camshaft: Removal - Refitting
K9K
11A
REMOVAL
I - REMOVAL PREPARATION OPERATION
aPosition the vehicle on a two-post lift (see Vehicle:
Towing and lifting) (02A, Lifting equipment).
aRemove the front engine cover.
aDisconnect the battery (see Battery: Removal - Re-
fitting) (80A, Battery).
aRemove:
-the air filter unit (see 12A, Fuel mixture, Air filter
unit: Removal - Refitting, page 12A-13) ,
-the windscreen wiper arms (see Windscreen wip-
er arm: Removal - Refitting) (85A, Wiping -
Washing),
-the scuttle panel grille (see Scuttle panel grille:
Removal - Refitting) (56A, Exterior equipment),
-the scoop under the scuttle panel grille (see Scoop
under the scuttle panel grille: Removal - Refit-
ting) (56A, Exterior equipment),
-the front right-hand wheel (see Wheel: Removal -
Refitting) (35A, Wheels and tyres),
-the front right-hand wheel arch liner (see Front
wheel arch liner: Removal - Refitting) (55A, Ex-
terior protection),
-the front bumper (see Front bumper: Removal -
Refitting) (55A, Exterior protection),
-the halogen headlights (see Halogen headlight:
Removal - Refitting) (80B, Headlights),
-the front upper cross member (see Front upper
cross member: Removal - Refitting) (42A, Upper
front structure),
-the lower engine tie-bar (see 19D, Engine mount-
ing, Lower engine tie-bar: Removal - Refitting,
page 19D-18) ,
-the right-hand suspended engine mounting (see
19D, Engine mounting, Right-hand suspended
engine mounting: Removal - Refitting, page
19D-13) ,
-the accessories belt (see 11A, Top and front of
engine, Accessories belt: Removal - Refitting,
page 11A-3) ,-the crankshaft accessories pulley (see 11A, Top
and front of engine, Crankshaft accessories
pulley: Removal - Refitting, page 11A-20) ,
-the camshaft position sensor (see 13B, Diesel in-
jection, Camshaft position sensor: Removal -
Refitting, page 13B-14) ,
-the timing belt (see 11A, Top and front of engine,
Timing belt: Removal - Refitting, page 11A-27) ,
-the rocker cover (see 11A, Top and front of en-
gine, Rocker cover: Removal - Refitting, page
11A-66) ,
-the vacuum pump (see Vacuum pump: Removal
- Refitting) (37A, Mechanical component controls).
II - OPERATION FOR REMOVAL OF PART
CONCERNED
aMark the position of the camshaft bearings.
aRemove:
-the camshaft bearing bolts,
-the camshaft bearings,
-the camshaft, Tightening torquesm
bolts of the camshaft
bearings10 N.m
113563
113565
11A-114
TOP AND FRONT OF ENGINE
Cylinder head: Removal - Refitting
K9K
11A
REMOVAL
I - REMOVAL PREPARATION OPERATION
aPosition the vehicle on a two-post lift (see Vehicle:
Towing and lifting) (02A, Lifting equipment).
aRemove the front engine cover.
aDisconnect the battery (see ) (80A, Battery).
aRemove:
-the windscreen wiper arms (see Windscreen wip-
er arm: Removal - Refitting) (85A, Wiping -
Washing),
-the scuttle panel grille (see Scuttle panel grille:
Removal - Refitting) (56A, Exterior equipment),
-the scoop under the scuttle panel grille (see Scoop
under the scuttle panel grille: Removal - Refit-
ting) (56A, Exterior equipment),-the front wheels (see Wheel: Removal - Refitting)
(35A, Wheels and tyres),
-the front wheel arch liners (see Front wheel arch
liner: Removal - Refitting) (55A, Exterior protec-
tion),
-the front bumper (see Front bumper: Removal -
Refitting) (55A, Exterior protection),
-the halogen headlights (see Halogen headlight:
Removal - Refitting) (80B, Headlights),
-the front upper cross member (see Front upper
cross member: Removal - Refitting) (42A, Upper
front structure),
-the accessories belt (see 11A, Top and front of
engine, Accessories belt: Removal - Refitting,
page 11A-3) ,
-the timing belt (see 11A, Top and front of engine,
Timing belt: Removal - Refitting, page 11A-27) .
aDrain the cooling system (see 19A, Cooling, Cool-
ing system: Draining - Refilling, page 19A-9) .
aRemove:
-the nut from the dipstick guide,
-the dipstick guide.
aDisconnect:
-the injector connectors,
-the heater plug connectors ,
-the connectors to the high pressure pump,
-injector rail pressure sensor connector,
-the accelerometer connector.
aRemove the nut from the engine wiring channel.
aMove aside the engine wiring.
aDisconnect the fuel inlet and return pipes from the
high pressure pump. Special tooling required
Mot. 1202-01Clip pliers for hose clips
(large size).
Mot. 1202-02Clip pliers for hose clips
(small size)
Mot. 1448Remote operation pliers for
hose clips .
Equipment required
cylinder head bolt tightening gauge (angular mea-
suring type)
Tightening torquesm
cylinder head bolts (ini-
tial torque)25 N.m
cylinder head bolts270˚ ±± ± ±
10˚
IMPORTANT
Wear goggles with side protectors for this opera-
tion.
IMPORTANT
Wear leaktight gloves (Nitrile type) for this opera-
tion.
WARNING
To avoid any corrosion or damage, protect the
areas on which fuel is likely to r un.
IMPORTANT
Dur ing this operation, be sure to:
-refrain from smoking or bringing red hot objects
close to the working area,
-be careful of fuel splashes when disconnecting
the union.
11A-115
TOP AND FRONT OF ENGINE
Cylinder head: Removal - Refitting
K9K
11A
aFit blanking plugs to the fuel pipes and the high pres-
sure pump (see 13B, Diesel injection, Diesel in-
jection: Precautions for the repair, page 13B-1) .
aRemove the air filter unit (see 12A, Fuel mixture,
Air filter unit: Removal - Refitting, page 12A-13) .
aUnclip:
-the breather pipe on the gearbox,
-the wiring on the engine lifting eye on the gearbox
side.
aMove aside the engine wiring.
aDisconnect the brake servo pipe from the vacuum
pump.
aRemove the cooling hose clip from the EGR cooler
using the (Mot. 1202-01) or (Mot. 1202-02) or (Mot.
1448).
aDisconnect the cooling hose from the EGR cooler.
aSeparate the clip on the cooling hose of the coolant
pump inlet pipe using the tool (Mot. 1202-01) or
(Mot. 1202-02) or (Mot. 1448).
aDisconnect the cooling hose from the coolant pump
inlet pipe.
aRemove the heater matrix cooling hose clip from the
water chamber using the (Mot. 1202-01) or (Mot.
1202-02) or (Mot. 1448).
aDisconnect:
-the heater matrix cooling hose from the water
chamber,
-the coolant temperature sensor connector.
aRemove the catalytic converter (see 19B, Exhaust,
Catalytic converter: Removal - Refitting, page
19B-12) .aRemove:
-the oil return pipe bolts (1) from the turbocharger,
-the oil return pipe by detaching it from the cylinder
block,
-the rocker cover (see 11A, Top and front of en-
gine, Rocker cover: Removal - Refitting, page
11A-66) ,
-the two high pressure pipes between the rail and
injector at the timing end (see 13B, Diesel injec-
tion, High pressure pipe between rail and injec-
tor: Removal - Refitting, page 13B-39) ,
-the timing end bracket bolt from the air filter box,
-the timing end bracket from the air filter box.
112327
11A-117
TOP AND FRONT OF ENGINE
Cylinder head: Removal - Refitting
K9K
11A
aIf necessary, carry out a complete check of the cylin-
der head (see Cylinder head: Check) .
II - REFITTING OPERATION FOR PART
CONCERNED
aBring the pistons to mid-stroke position to prevent
them from coming into contact with the valves during
the tightening of the cylinder head.
aRefit:
-a new cylinder head gasket,
-the cylinder head.
Cylinder head tightening procedure
aRefit the cylinder head bolts.
aFit the cylinder head bolts, without tightening them.
aTighten to torque and in order the cylinder head
bolts (initial torque) (25 N.m).
aCheck that the cylinder head bolts are tightened to
25 Nm.
aAngle tighten the cylinder head bolts (270˚ ±± ± ±
10˚) in
order using a cylinder head bolt tightening gauge
(angular measuring type).
III - FINAL OPERATION
aRefit:
-the timing end bracket on the air filter box.
-the timing end bracket bolt on the air filter box,-the two high pressure pipes between the rail and
injector at the timing end (see 13B, Diesel injec-
tion, High pressure pipe between rail and injec-
tor: Removal - Refitting, page 13B-39) ,
-the rocker cover (see 11A, Top and front of en-
gine, Rocker cover: Removal - Refitting, page
11A-66) ,
-the oil return pipe fitted with new seals, fitting it into
the cylinder block (see 12B, Turbocharging, Tur-
bocharger oil pipe: Removal - Refitting, page
12B-12) .
aRefit the catalytic converter (see 19B, Exhaust,
Catalytic converter: Removal - Refitting, page
19B-12) .
aConnect:
-the coolant temperature sensor connector,
-the heater matrix cooling hose to the water cham-
ber.
aFit the clip on the heater matrix cooling hose onto
the water chamber using the (Mot. 1202-01) or
(Mot. 1202-02) or (Mot. 1448).
aConnect the coolant pump inlet pipe cooling hose.
aFit the cooling hose clip at the coolant pump inlet
pipe end using the (Mot. 1202-01) or (Mot. 1202-02)
or (Mot. 1448).
aConnect the EGR cooler cooling hose.
aFit the cooling hose clip at the EGR cooler end using
the (Mot. 1202-01) or (Mot. 1202-02) or (Mot.
1448).
aConnect the brake servo pipe onto the vacuum
pump.
aFit the engine wiring.
aClip:
-the breather pipe onto the gearbox,
-the wiring on the engine lifting eye on the gearbox
side.
aRefit the air filter unit (see 12A, Fuel mixture, Air fil-
ter unit: Removal - Refitting, page 12A-13) .
aRemove the blanking plugs from the fuel pipes and
high pressure pump.
aConnect the fuel inlet and return pipes to the high
pressure pump.
aFit the engine wiring.
aConnect:
-the accelerometer connector,
-injector rail pressure sensor connector, WARNING
In order to ensure that the bolts are correctly
tightened, use a syringe to remove any oil which
may be in the cylinder head mounting holes.
19712
12B-16
TURBOCHARGING
Turbocharger oil pipe: Removal - Refitting
C44, and K9K
12B
REMOVAL
I - REMOVAL PREPARATION OPERATION
aPosition the vehicle on a two-post lift (see Vehicle:
Towing and lifting) (02A, Lifting equipment).
aRemove the front engine cover.
aDisconnect the battery (see Battery: Removal - Re-
fitting) (80A, Battery).
1 - Turbocharger oil supply pipe
aRemove:
-the windscreen wiper arms (see Windscreen wip-
er arm: Removal - Refitting) (85A, Wiping -
Washing),
-the scuttle panel grille (see Scuttle panel grille:
Removal - Refitting) (56A, Exterior equipment),
-the scoop under the scuttle panel grille (see Scoop
under the scuttle panel grille: Removal - Refit-
ting) (56A, Exterior equipment),
-the air filter box (see 12A, Fuel mixture, Air filter
unit: Removal - Refitting, page 12A-13) ,
-the exhaust gas recirculation solenoid valve (see
14A, Antipollution, Exhaust gas recirculation
solenoid valve: Removal - Refitting, page 14A-
10) .
2 - turbocharger oil return pipe
aRemove the catalytic converter (see 19B, Exhaust,
Catalytic converter: Removal - Refitting, page
19B-12) .II - OPERATION FOR REMOVAL OF PART
CONCERNED
1 - Turbocharger oil supply pipe
aRemove the bolt (1) of the turbocharger oil supply
pipe from the turbocharger.
aUndo the nut (2) of the turbocharger oil supply pipe
on the cylinder head.
aRemove the nut of the turbocharger oil supply pipe
on the cylinder head.
aRemove the turbocharger oil supply pipe. Special tooling required
Mot. 1746Offset wrench for tightening
High Pressure pump pipes.
Tightening torquesm
nut of the oil supply pipe
on the cylinder head35 Nm
bolt of the turbocharger
oil supply pipe on the
turbocharger14 Nm
turbocharger oil return
pipe bolts12 N.m
127900
127898
13A-1
FUEL SUPPLY
Diesel supply circuit: Operating diagram
K9K
13A
The diesel fuel supply system includes a diesel injec-
tion computer and various sensors.
120417
(1) Fuel tank
(2) Dipstick
(3) Electrical diesel fuel reheater
(4) Man ual priming pump
(5) Diesel filter
(6) High pressure pump
(7) Fuel fl ow actuator
(8) Injector rail
(9) Injector rail pressure sensor
(10) Diesel injector
(11) Venturi
IMPORTANT
Loosening a high pressure pipe union when the
engine is running is strictly prohibited.
WARNING
It is forbidden:
-to dismantle the interior of the pump or injectors.
-to remove the pressure sensor from the fuel rail
(because of circuit contamination problems). If the
pressure sensor fails, the pressure sensor, the rail
and the five high pressure pipes must be replaced,
-to dismantle the flow regulator solenoid valve and
the pressure regulator solenoid valve on the high
pressure pump.
13A-2
FUEL SUPPLY
Manual priming pump: Removal - Refitting
K9K
13A
PARTS AND CONSUMABLES FOR THE
REPAIR WORK
aCONSUMABLES:
-cleaning cloths.
a
REMOVAL
I - REMOVAL PREPARATION OPERATION
aPosition the vehicle on a two-post lift (see Vehicle:
Towing and lifting) (MR 411, 02A, Lifting equip-
ment).
aRemove the front engine cover.II - OPERATION FOR REMOVAL OF PART
CONCERNED
aDetach the fuel pipe from the body.
aDisconnect the electric diesel fuel heater fuel pipe
union (1) .
aUnclip the fuel pipe. IMPORTANT
During this operation, be sure to:
-refrain from smoking or bringing red hot objects
close to the working area,
-be careful of fuel splashes when disconnecting
the union.
IMPORTANT
Wear goggles with side protectors for this opera-
tion.
IMPORTANT
Wear latex gloves during the operation.
IMPORTANT
Consult the safety and cleanliness advice and
operation recommendations before carrying out
any repair (see 13B, Diesel injection, Diesel
injection: Precautions for the repair, page
13B-1) .
WARNING
To avoid any corrosion or damage, protect the
areas on which fuel is likely to run.
WARNING
Prepare for the flow of fluid, and protect the sur-
rounding components.
120049
WARNING
To prevent impur ities from entering the circuit,
plugs must be fitted to the openings of all the fuel
circuit components exposed to the open air.
WARNING
Keep the pipe unions away from contaminated
areas.