2004 NISSAN TERRANO Service Repair Manual

OIL SEAL INSTALLING DIRECTION
IWhen installing a new front or rear oil seal, make sure its
mounting direction is correct.
CRANKSHAFT FRONT OIL SEAL
1. Remove protecting cover.
2. Remove radiator shroud.
3. Remove cooling fan.
4. Remove drive belts.
5. Remove crank pulley.
6. Remove crankshaft oil seal.
IBe careful not to damage sealing surfaces of crankshaft.
7. Coat new oil seal with engine oil and install it in place.
CRANKSHAFT REAR OIL SEAL
1. Dismount transmission.
2. Remove clutch cover assembly.
3. Remove flywheel and rear plate.
4. Remove oil seal retainer assembly, then remove oil seal.
I Be careful not to damage sealing surfaces of crankshaft.
5. Coat new oil seal with engine oil and install it in place.
SEM715A
SEM644B
SEM217B
OIL SEAL REPLACEMENTTD27Ti
EM-118
http://vnx.su/

Removal and Installation
Turbocharger should not be disassembled.
1. Drain engine coolant.
2. Remove the following:
IAir duct and intercooler components
I Heat shield plates
I Exhaust front tube
I Oil tubes
I Water tubes
3. Remove turbocharger from exhaust manifold.
4. Remove turbocharger bracket bolts.
Inspection
Condition 1: Low engine power
Probable cause Corrective action
Air leak at the connection of compressor housing and suc-
tion hose/inlet tube, or inlet and intake manifold.
ECorrect the connection.
Exhaust gas leak at the connection of turbine housing and
exhaust manifold, connecting tube or exhaust outlet.
ECorrect the connection or replace gasket.
By-pass valve is stuck in open position.E
Replace turbocharger assembly.
Stuck or worn journal or bearing.E
Broken shaft.E
Sludge on back of turbine wheel.E
Broken turbine wheel.E
Condition 2: Excessively high engine power
Probable cause Corrective action
Disconnected or cracked rubber hose of by-pass valve
controller.
ECorrect or replace rubber hose.
By-pass valve is stuck in closed position.E
Replace turbocharger assembly.
Controller diaphragm is broken.E
TURBOCHARGERTD27Ti
EM-119
http://vnx.su/

Condition 3: Excessively high oil consumption, or exhaust shows pale blue smoke
Probable causeCorrective action
Oil leak at the connection of lubricating oil passage.
ECorrect the connection.
Oil leak at oil seal of turbine.E
Replace turbocharger assembly.Oil leak at oil seal of compressor.E
Worn journal or bearing.E
Perform the following checks. If NG, replace turbocharger unit.
OIL AND WATER TUBES
Check tubes for clogging.
NEM180
SEM029F
TURBOCHARGERTD27Ti
Inspection (Cont'd)
EM-120
http://vnx.su/

ROTOR SHAFT
1. Check rotor shaft for smooth rotation.
2. Check rotor shaft for carbon deposits.
3. Measure rotor shaft runout.Runout (Total indicator reading):Standard0.056 - 0.127 mm (0.0022 - 0.0050 in)
4. Measure rotor shaft end play. End play:Standard0.013 - 0.097 mm (0.0005 - 0.0038 in)
I Do not allow wheels to turn when axial play is being mea-
sured.
SEM030F
SEM031F
SEM032F
SEM827D
TURBOCHARGERTD27Ti
Inspection (Cont'd)
EM-121
http://vnx.su/

TURBINE WHEEL
Check turbine wheel for the following.
IOil
I Carbon deposits
I Deformed fins
I Contact with turbine housing
COMPRESSOR WHEEL
Check compressor wheel for the following.
IOil
I Deformed fins
I Contact with compressor housing
WASTEGATE VALVE
Remove rod pin and check wastegate valve for cracks, deformation
and smooth movement. Check valve seat surface for smoothness.
Check operation of by-pass valve controller.
IMove by-pass valve to make sure that it is not sticking or
scratched.
I Measure rod end play of the by-pass valve controller.
Do not apply more than 102.6 kPa (1,026 mbar, 770 mmHg,
30.31 inHg) pressure to controller diaphragm. By-pass valve controller stroke/pressure:0.38 mm (0.015 in)/92 kPa (920 mbar, 690 mmHg,
27.17 inHg)
SEM828D
SEM829D
SEM830D
SEC727B
TURBOCHARGERTD27Ti
Inspection (Cont'd)
EM-122
http://vnx.su/

EEM097E
ENGINE REMOVALTD27Ti
EM-123
http://vnx.su/

WARNING:
a. Situate vehicle on a flat and solid surface.
b. Place chocks at front and back of rear wheels.
c. Do not remove engine until exhaust system has completelycooled off.
d. For safety during subsequent steps, the tension of wires should be slackened against the engine.
e. Be sure to hoist engine in a safe manner.
f. For engines not equipped with engine slingers, attach proper slingers and bolts described in PARTS CATALOG.
CAUTION:
I When lifting engine, be careful not to strike adjacent parts,
especially, brake lines and brake master cylinder.
I In hoisting the engine, always use engine slingers in a safe
manner.
ENGINE REMOVALTD27Ti
EM-124
http://vnx.su/

Disassembly
PISTON AND CRANKSHAFT
1. Remove oil filter.
2. Place engine on work stand.
3. Drain coolant and oil.
4. Remove drive belts.
5. Remove cylinder head. Refer to ªCYLINDER HEADº.
6. Remove oil pan.
7. Remove crank pulley and timing gear plate cover.
8. Remove water pump.
9. Remove timing gear case.
If the timing case is hard to remove due to liquid gasket, pry
it off with a suitable tool at the cutout section.
10. Remove injection pump gear nut.
SEM650B
NEM165
NEM170
NEM166
NEM167
ENGINE OVERHAULTD27Ti
EM-125
http://vnx.su/