2005 NISSAN NAVARA Repair Workshop Manual

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Page 1409 of 3171

NISSAN NAVARA 2005 Repair Workshop Manual CATALYST
EM-27
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INSTALLATION
Note the following, and install in the reverse order of removal.
lIf stud bolts of turbocharger were removed, tighten them to the specified torque

Page 1410 of 3171

NISSAN NAVARA 2005 Repair Workshop Manual EM-28
TURBO CHARGER
TURBO CHARGER
PFP:14411
ComponentsEBS01EJH
1. Exhaust manifold 2. Water hose (4WD models) 3. Water tube (4WD models)
4. Copper washer (4WD models) 5. Eye-bolt (4WD models) 6. Gaske

Page 1411 of 3171

NISSAN NAVARA 2005 Repair Workshop Manual TURBO CHARGER
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lRefer toGI-10, "Components"for symbol marks in the figure.
Removal and InstallationEBS01E5X
REMOVAL
lAfter applying penetrative lubricant to the mounting

Page 1412 of 3171

NISSAN NAVARA 2005 Repair Workshop Manual EM-30
TURBO CHARGER
INSPECTION AFTER REMOVAL
2WD Models
4WD Models
CAUTION:
When the compressor wheel turbine, wheel or rotor shaft is damaged, remove all the fragments and
foreign matter left in the

Page 1413 of 3171

NISSAN NAVARA 2005 Repair Workshop Manual TURBO CHARGER
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Rotor Shaft Clearance
lMake sure that the rotor shaft (1) rotates smoothly without any
resistance when it is rotated by your fingertips.
lMake sure that t

Page 1414 of 3171

NISSAN NAVARA 2005 Repair Workshop Manual EM-32
TURBO CHARGER
Turbocharger Boost Control Actuator
lConnect the handy vacuum pump (B) to the turbocharger boost
control actuator (1), and make sure that the rod (2) strokes
smoothly in compliance

EM-32
TURBO CHARGER
Turbocharger Boost Control Actuator
lConnect the handy vacuum pump (B) to the turbocharger boost
control actuator (1), and make sure that the rod (2) strokes
smoothly in compliance with the following pressure.
lPressure to be applied at the turbocharger boost control actua-
tor (1) part to move rod (2) end as follows:
TROUBLE DIAGNOSIS OF TURBOCHARGER
Preliminary check:
lMake sure that the engine oil level is between MIN and MAX of the oil level gauge. (When engine oil
amount is more than MAX, engine oil flows into the inlet duct through blow-by gas passage, and turbo-
charger is misjudged malfunction.)
lAsk the customer if he/she always runs the vehicle in idle engine speed to cool the engine oil down after
driving.
lReplace the turbocharger assembly when any malfunction is found after unit inspections specified in the
table below.
lIf no malfunction is found after the unit inspections, judge that the turbocharger body has no malfunction.
Check the other parts again.
A: Large possibility
B: Medium possibility
C: Small possibilityA : Dial gauge
Standard (Pressure/rod stroke amount):
:–52.0 to –54.6 kPa (–520 to –546 mbar, –390 to –410
mmHg, –15.4 to –16.1 inHg)/0.2 mm (0.0079 in)
: –32.0 to –40.0 kPa (–320 to –400 mbar, –240 to –300
mmHg, –9.45 to –11.8 inHg)/5.0 mm (0.197 in)
PBIC3421E
Inspection item Inspection resultSymptom
(when each inspection item meets each inspection result)
Engine oil
leakageSmoke NoiseInsufficient power/accel-
eration malfunction
Turbine wheelEngine oil leaks C A C C
Carbon is accumulated C A B B
Friction with housing C B A B
Blades are bent or broken — — A A
Compressor wheelInside the air inlet is seriously con-
taminated by engine oil.BB— —
Friction with housing C B A B
Blades are bent or broken — — A A
After checking both turbine and
compressor, inspect rotor shaft
end play.There is resistance when the rotor
shaft is rotated by your fingertips.—CC B
The rotor shaft sometimes does not
rotate by your fingertips.——— A
There is too much play in the bear-
ing.CCB C
Oil return portCarbon or sludge is accumulated in
the waste oil hole.CAC C

Page 1415 of 3171

NISSAN NAVARA 2005 Repair Workshop Manual TURBO CHARGER
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INSTALLATION
Note the following, and install in the reverse order of removal.
lWhen a stud bolt is pulled out, replace it with a new one and tighten it to

Page 1416 of 3171

NISSAN NAVARA 2005 Repair Workshop Manual EM-34
EXHAUST MANIFOLD
EXHAUST MANIFOLD
PFP:14004
ComponentsEBS01EJI
lRefer toGI-10, "Components"for symbol marks except in the above.
Removal and InstallationEBS01EJJ
REMOVAL
1. Drain engine coolant.

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