NISSAN TERRANO 2004 Service Repair Manual

1. Warm up engine.
2. Turn ignition switch OFF.
3. Using CONSULT-II, make sure no error codes are indicated forself-diagnosis items. Refer to EC section, ªFuel Pressure
Releaseº.
I Do not disconnect CONSULT-II until the end of this operation;
it will be used to check engine rpm and for error detection at
the end of this operation.
4. Disconnect the negative battery terminal.
5. Remove the following parts.
I Intercooler
I Throttle body
I Rocker cover
6. To prevent fuel from being injected during inspection, remove fuel injection pump fuse [ENG CONT A/T (15A)] from fuse box
on the right side of engine compartment.
7. Remove glow plugs from all the cylinders.
I Before removal, clean the surrounding area to prevent
entry of any foreign materials into the engine.
I Carefully remove glow plugs to prevent any damage or
breakage.
I Handle with care to avoid applying any shock to glow
plugs.
8. Install adapter (SST) to installation holes of glow plugs and connect compression gauge for diesel engine.
:15-19N ×m (1.5 - 2.0 kg-m, 11 - 14 ft-lb)
9. Connect battery negative terminal.
10. Set the ignition switch to ªSTARTº and crank. When gauge pointer stabilizes, read compression pressure and engine rpm.
Repeat the above steps for each cylinder.
I Always use a fully-charged battery to obtain specified
engine speed.
Unit: kPa (bar, kg/cm2, psi)/rpm
Standard MinimumDifference limit between
cylinders
2,942 (29.42, 30.0, 427)/ 200 2,452 (24.52, 25.0, 356)/
200 294 (2.94, 3.0, 43)/200
I
When engine rpm is out of the specified range, check the spe-
cific gravity of battery liquid. Measure again under corrected
conditions.
I If engine rpm exceeds the limit, check valve clearance and
combustion chamber components (valves, valve seats, cylinder
head gaskets, piston rings, pistons, cylinder bores, cylinder
block upper and lower surfaces) and measure again.
11. Complete this operation as follows:
a. Turn the ignition switch to ªOFFº.
b. Disconnect battery negative terminal.
c. Replace glow plug oil seals and install glow plugs.
d. Install fuel injection pump fuse [ENG CONT A/T (15A)].
e. Connect battery negative terminal.
f. Using CONSULT-II make sure no error code is indicated for items of self-diagnosis. Refer to EC section, ªTrouble Diagno-
sis Ð Indexº.
YEM039
SEM334G
MEASUREMENT OF COMPRESSION PRESSUREZD
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Removal and Installation
CAUTION:
To avoid damaging intercooler core when flushing intercooler
with high pressure water, apply water straight to the core face.
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INTERCOOLERZD
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Removal and Installation
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INTAKE MANIFOLDZD
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REMOVAL
1. Remove the following parts.
IDrain engine coolant. Refer to MA section, ªChanging Engine
Coolantº.
I Remove engine cover. Refer to the figure at left.
I Remove intercooler.
I Remove air hose (on throttle body side).
I Remove injection tube.
I Remove or relocate wires/harnesses and tubes/pipes.
2. Remove intake manifold in the reverse order of that shown in the figure.
Inspection
Clean surface of intake manifold.
Use a reliable straightedge and feeler gauge to check the flatness
of intake manifold surface. Intake manifold surface flatness:Limit 0.2 mm (0.008 in)
INSTALLATION
1. Tighten intake manifold in the numerical order shown in thefigure.
:25-28N ×m (2.5 - 2.9 kg-m, 18 - 20 ft-lb)
2. Install in the reverse order of removal.
SEM293G
SEM294G
INTAKE MANIFOLDZD
Removal and Installation (Cont'd)
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Removal and Installation
REMOVAL
1. Remove the following parts.
IUndercover
I Under guard
I Engine coolant (drain)
Refer to MA section, ªChanging Engine Coolantº.
I Exhaust front tube
Refer to FE section, ªRemoval and Installationº, ªEXHAUST
SYSTEMº.
I Remove wires, harnesses, tubes and pipes.
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SEM296G
CATALYST AND TURBOCHARGERZD
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2. Remove catalyst.
CAUTION:
Do not disassemble catalyst.
Inspection
TURBOCHARGER
CAUTION:
When the compressor wheel, turbine wheel, or rotor shaft is
damaged, remove all the fragments and foreign matter left in
the following passages in order to prevent a secondary failure:Suction side: Between turbocharger and intercooler
Exhaust side: Between turbocharger and catalytic
converter
Rotor shaft
ICheck that the rotor shaft rotates smoothly without any resis-
tance when it is rotated by your fingertips.
I Check that the rotor shaft is not loose when it is moved verti-
cally or horizontally.
Standard value for rotor shaft oil clearance: 0.086 - 0.177 mm (0.0034 - 0.0070 in)
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SEM298G
CATALYST AND TURBOCHARGERZD
Removal and Installation (Cont'd)
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Rotor shaft end play
Place a dial gauge at the rotor shaft end in the axial direction to
measure the end play.Standard: 0.044 - 0.083 mm (0.0017 - 0.0033 in)
Turbine wheel
ICheck that there is no oil adhesion.
I Check that there is no carbon accumulation.
I Check that blades of the turbine wheel are not bent or broken.
I Check that the turbine wheel does not interfere with the turbine
housing.
Compressor wheel
ICheck that there is no oil adhesion inside the air inlet.
I Check that the compressor wheel does not interfere with the
compressor housing.
I Check that the wheel is not bent or broken.
VNT control actuator
IConnect the handy pump to the actuator, and check that the rod
strokes smoothly in compliance with the following pressure.
I First, apply the inspection negative pressure of about þ66.7
kPa (þ667 mbar, þ500 mmHg, 19.69 inHg), and then measure
the values while reducing the negative pressure to 0.
Standard (Vacuum pressure/rod stroke amount): þ46.9 1.3 kPa (þ469 13 mbar, þ352 10 mmHg,
þ13.86 0.39 inHg)/0.2 mm (0.008 in)
þ30.8 0.7 kPa (þ308 7 mbar, þ231 5 mmHg,
þ9.09 0.20 inHg)/5.0 mm (0.197 in)
Approximately þ22.7 kPa (þ227 mbar, þ170 mmHg,
þ6.69 inHg)/Rod stroke end
SEM299G
SEM300G
SEM310G
SEM311G
CATALYST AND TURBOCHARGERZD
Inspection (Cont'd)
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Trouble diagnosis of turbocharger
Preliminary check:
Check that the VNT control valve system has no malfunction. Refer
to EC section, ªECM Terminals and Reference Valueº in ªTROUBLE
DIAGNOSIS Ð GENERAL DESCRIPTIONº.
ICheck that the engine oil level is between MIN and MAX of the
dipstick. (When the engine oil amount is more than MAX, the
oil flows into the inlet duct through the blow-by gas passage,
and the turbocharger is misjudged failure.)
I Ask the customer if he/she always runs the vehicle in idle
engine speed to cool the oil down after driving.
I Replace the turbocharger assembly when any malfunction is
found after unit inspections specified in the table below.
I If no malfunction is found after the unit inspections, judge that
the turbocharger body has no failure. Check the other parts
again.
Inspection item Inspection resultSymptom (when each inspection item
meets each inspection result)
Oil leak- age Smoke Noise Insuffi-
cient
power/ accel-
eration failure
Turbine wheel Oil leaks.
g
gg
Carbon is accumulated. g
qq
Friction with housing. gq
q
Blades are bent or broken.
Compressor wheel Inside the air inlet is seriously contami-
nated by oil.
qq
Friction with housing. gqq
Blades are bent or broken.
After checking both turbine and compressor,
inspect rotor shaft end play. There is resistance when the rotor shaft
is rotated by your fingertips.
ggq
The rotor shaft sometimes does not
rotate by your fingertips.
There is too much play in the bearing. g gqg
Oil return port Carbon or sludge is accumulated in the
waste oil hole.g
gg
Operation of VNT control actuator I
The actuator does not operate
smoothly when vacuum pressure is
gradually applied.
I Stroke amount is not in compliance
with the vacuum pressure. q
: Large possibility
q: Medium possibility
g: Small possibility
INSTALLATION
1. Install catalyst.
:29-39N ×m (2.9 - 3.3 kg-m, 21 - 23 ft-lb)
Place the protruding area of the gasket between the turbocharger
and the exhaust outlet upwards, and install the lipped side to the
turbocharger side. Refer to the figure, EM-14.
2. Install in the reverse order of removal.
CATALYST AND TURBOCHARGERZD
Inspection (Cont'd)
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Removal and Installation
REMOVAL
1. Remove the following parts.
IRefer to ªPREPARATIVE WORKº in ªCATALYST AND
TURBOCHARGERº, EM-14.
I Remove catalytic converter.
I Remove turbocharger.
2. Loosen nuts holding the exhaust manifold in the reverse order of that shown in the figure.
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SEM313G
EXHAUST MANIFOLDZD
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Inspection
EXHAUST MANIFOLD
Check distortion on mounting surface with straightedge and feeler
gauge.Limit: 0.2 mm (0.008 in)
INSTALLATION
1. Tighten exhaust manifold holding nuts in the numerical ordershown in the figure.
: 39.2 - 44.1 N ×m (4.0 - 4.4 kg-m, 29 - 32 ft-lb)
NOTE:
Install gasket so that the protruding tab (mark for correct
installation) is positioned on the side of No. 1 port (front side).
Refer to component structure diagram on the previous page.
2. Install in the reverse order of removal.
FEM034
EXHAUST MANIFOLDZD
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