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12ENGINE
2
OVERHAUL GASKET - EXHAUST MANIFOLD
Service repair no - 30.15.12.01
Remove
NOTE: The following procedure covers
both EU3 and non EU3 engines
NOTE: EU3 engine illustrated.
1.Remove 3 bolts securing heater pipe to cylinder
head and turbocharger heat shield.
2.Remove heater pipe.
3.Remove bolt and remove turbocharger heat
shield.
4.Remove and discard 2 Allen screws securing
EGR pipe to exhaust manifold.
5.Remove banjo bolt securing oil feed pipe to
turbocharger and discard sealing washers.
6.Loosen turbocharger drain hose union at
cylinder block.
7.Remove 10 nuts and remove exhaust manifold
and turbocharger.
8.Remove manifold gasket.Refit
1.Clean exhaust manifold mating faces.
2.Position exhaust manifold to cylinder head using
new gasket and fit manifold nuts.
3.Working from the centre outwards, fit and tighten
nuts to25 Nm (18 lbf.ft).
4.Clean turbocharger drain and feed hose unions.
5.Fit turbocharger oil drain hose to cylinder block
and tighten union to48 Nm (35 lbf.ft).
6.Fit new sealing washers to turbocharger oil feed
pipe, fit banjo bolt and tighten to25 Nm (18
lbf.ft).
7.Position EGR pipe to exhaust manifold. Fit new
Allen screws and tighten to10 Nm (7 lbf.ft).
8.Position turbocharger heat shield.
9.Position heater pipe to cylinder head and tighten
bolts to25 Nm (18 lbf.ft).
10.Position exhaust manifold heatshield and tighten
M6 bolts to9 Nm (7 lbf.ft)and M8 bolt to25
Nm (18 lbf.ft).
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12ENGINE
20
OVERHAUL GASKET - ENGINE SUMP
Service repair no - 12.60.38.01
Remove
1.Remove 2 bolts securing centrifuge oil drain pipe
to sump, remove and discard gasket.
2.Using sequence shown and noting their fitted
positions, remove 20 bolts securing sump to
cylinder block.
3.Remove sump, remove and discard gasket.
CAUTION: Do not lever between sump and
cylinder block.Refit
1.Clean sump and mating faces, ensure bolt holes
in cylinder block are clean and dry.
2.Using suitable solvent, remove all traces of
sealant from joint faces of timing chain cover and
crankshaft rear oil seal housing.
3.Clean centrifugal filter oil drain pipe and mating
faces.
4.Apply a bead of sealant, Part No. STC 3254 to
joint faces of timing chain cover and crankshaft
rear oil seal housing.
CAUTION: Assembly and bolt tightening
must be completed within 20 minutes of
applying sealant.
5.Position new sump gasket.
CAUTION: Gasket must be fitted dry.
6.Position sump, fit and lightly tighten bolts
ensuring they are in their original fitted positions.
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ENGINE
21
OVERHAUL
7.Using sequence shown, tighten sump bolts to25
Nm (18 lbf.ft).
8.Fit new centrifuge oil drain pipe gasket.
CAUTION: Gasket must be fitted dry.
9.Fit centrifuge oil drain pipe, fit bolts and tighten
to10 Nm (7 lbf.ft).SEAL - CRANKSHAFT - REAR
Service repair no - 12.21.20.01
Remove
1.Remove flywheel.See Repair.
2.Remove sump gasket.See this Section.
3.Remove 5 bolts securing crankshaft rear oil seal
housing to cylinder block.
4.Remove and discard crankshaft rear oil seal and
housing.
NOTE: Dowel located.
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19FUEL SYSTEM
4
REPAIR ELEMENT - FUEL FILTER
Service repair no - 19.25.07
Remove
1.Release fixings and remove battery cover.
2.Disconnect battery negative lead.
3.Raise rear of vehicle.
WARNING: Support on safety stands.
4.Release fixing and remove fuel filter cover.
5.Clean area around fuel filter.
6.Disconnect multiplug from filter element.
7.Remove fuel filter element.
Refit
8.Clean fuel filter and mating face.
9.Fit new fuel filter element and connect multiplug.
10.Position fuel filter cover and secure with fixing.
11.Remove stand(s) and lower vehicle.
12.Reconnect battery negative lead.
13.Fit and secure battery cover.COOLER - FUEL
Service repair no - 19.25.30
Remove
1.Remove 3 bolts and remove engine acoustic
cover.
2.Remove battery cover.
3.Disconnect battery negative lead.
4.Drain cooling system.See COOLING
SYSTEM, Adjustment.
5.Release 3 clips and disconnect 3 coolant hoses
from fuel cooler.
6.Release 2 fuel hoses from fuel cooler.
CAUTION: Plug the connections.
7.Release vacuum pipe clip from fuel cooler.
8.Remove 4 bolts securing fuel cooler to inlet
manifold and remove cooler.
Refit
9.Clean fuel hose connections.
10.Position fuel cooler to inlet manifold. Apply
Loctite 242 to bolts and tighten to18 Nm (13
lbf.ft).
11.Connect fuel hoses.
12.Connect coolant hoses, secure with clips.
13.Secure vacuum hose to fuel cooler.
14.Refill cooling system.See COOLING SYSTEM,
Adjustment.
15.Fit engine acoustic cover and secure with bolts.
16.Reconnect battery negative lead.
17.Fit battery cover.
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FUEL SYSTEM
5
REPAIR TURBOCHARGER
Service repair no - 19.42.01
Remove
1.Remove battery cover.
2.Disconnect battery negative lead.
3.Remove 3 bolts and remove engine acoustic
cover.
4.Release clip and disconnect breather hose from
camshaft cover.
5.Release clips and disconnect air flow meter from
air filter.
6.Disconnect multiplug from air flow meter.
7.Loosen clip screw and remove air inlet hose
from turbocharger.
8.Remove 3 bolts and remove exhaust manifold
heat shield.
9.Release clip and disconnect vacuum hose from
turbocharger wastegate.
10.Loosen clip screw and release air outlet hose
from turbocharger.
11.Remove turbocharger oil feed banjo bolt and
discard sealing washers.
12.Remove 3 nuts and release exhaust front pipe
from turbocharger and discard gasket.
13.Remove 3 nuts securing turbocharger to exhaust
manifold.
14.Loosen and unscrew turbocharger drain pipe
union from cylinder block.
15.Remove turbocharger and discard gasket.
16.Remove 2 bolts and remove turbocharger oil
drain pipe. Discard gasket.
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19FUEL SYSTEM
6
REPAIR Refit
17.Clean turbocharger and oil drain pipe mating
faces.
18.Using a NEW gasket, fit turbocharger drain pipe
and tighten bolts to10 Nm (7 lbf.ft).
19.Using a new gasket fit turbocharger to exhaust
manifold and tighten nuts to30 Nm (22 lbf. ft).
20.Position oil drain pipe to cylinder block and
tighten union.
21.Using new gasket, align exhaust front pipe and
tighten nuts to30 Nm (22 lbf.ft)
22.Fit banjo bolt to oil feed pipe using new sealing
washers and tighten to25 Nm (18 lbf.ft).
23.Position air outlet hose to turbocharger and
tighten clip screw.
24.Position and secure vacuum hose to
turbocharger wastegate.
25.Position exhaust manifold heat shield and
tighten M6 bolts to9 Nm (7 lbf.ft)and M8 bolt to
25 Nm (18 lbf.ft).
26.Position air inlet hose to turbocharger and
tighten clip screw.
27.Connect air flow meter to air filter and secure
clips.
28.Connect air flow meter multiplug.
29.Connect breather hose and secure clip.
30.Fit engine acoustic cover and secure with bolts.
31.Reconnect battery negative lead.
32.Fit battery cover.FILTER ASSEMBLY - AIR
Service repair no - 19.10.01
Remove
1.Loosen clip screw and release intake hose from
air filter.
2.Release 2 clips securing air flow meter.
3.Release air flow meter from air filter cover and
position aside.
4.Disconnect multiplug from AAP sensor.
5.Release air filter from 3 grommets, remove
assembly and discard’O’ring.
6.Remove 2 screws, remove AAP sensor and
discard’O’ring.
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FUEL SYSTEM
7
REPAIR Refit
7.Clean air flow meter faces.
8.Fit new’O’ring to air filter.
9.Clean AAP sensor.
10.Using new’O’ring, fit AAP sensor and tighten
screws.
11.Position air filter assembly and secure in
grommets.
12.Position air flow meter and secure clips.
13.Position intake hose to air filter and tighten clip
screw.INJECTOR - SET
Service repair no - 19.60.12
Remove
1.Remove cooling fan.See COOLING SYSTEM,
Repair.
2.Remove rocker shaft.See ENGINE , Repair.
3.Position container to catch fuel spillage.
4.Disconnect quick release fuel hose connectors
from fuel connector block on cylinder head and
fuel cooler to drain fuel from cylinder head.
5.Disconnect 5 multiplugs from injectors.
6.Remove Torx bolt securing injector unit to
cylinder head.
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Page 281 of 667
19FUEL SYSTEM
12
REPAIR FUEL TANK
Service repair no - 19.55.01
Remove
1.Drain fuel tank.See Adjustment.
2.Raise rear of vehicle.
WARNING: Support on safety stands.
Vehicles fitted with tow bar
3.Remove 2 bolts securing support bars to drop
plate.
4.Loosen 2 nuts securing support bars to chassis.All Vehicles
5.Remove 2 nuts securing fuel tank support to rear
chassis member.
6.Remove 2 bolts securing fuel tank support plate
to chassis member.
7.Release clip securing filler hose and release
hose from filler neck.
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