Nissan Murano 2004 User Manual
ENGINE MECHANICAL
B ENGINE
A
EM
SECTION EM
CONTENTS
PRECAUTIONS .......................................................... 3
Precautions for Drain Engine Coolant ...................... 3
Precautions for Disconnecting Fuel Piping .............. 3
Precautions for Removal and Disassembly ............. 3
Precautions for Inspection, Repair and Replace-
ment ......................................................................... 3
Precautions for Assembly and Installation ............... 3
Parts Requiring Angle Tightening ............................. 3
Precautions for Liquid Gasket .................................. 4
REMOVAL OF LIQUID GASKET SEALING .......... 4
LIQUID GASKET APPLICATION PROCEDURE ..... 4
PREPARATION .............................. .................... ......... 5
Special Service Tools ............................................... 5
Commercial Service Tools ........................................ 7
NOISE, VIBRATION AND HARSHNESS (NVH)
TROUBLESHOOTING .......................... ...................... 9
NVH Troubleshooting —Engine Noise ..................... 9
Use the Chart Below to Help You Find the Cause
of the Symptom. ....................................... ....... ....... 10
DRIVE BELTS ............................................................11
Checking Drive Belts ...............................................11
Tension Adjustment .................................................11
AL TERNATOR AND AI/C COMPRESSOR BEL T ... 12
POWER STEERING OIL PUMP BELT ............... 12
Removal and Installation ........................................ 12
REMOVAL ........................................................... 12
INSTALLATION ................................................... 13
AIR CLEANER AND AIR DUCT ............................... 14
Removal and Installation ........................................ 14
REMOVAL ........................................................... 14
INSPECTION AFTER REMOVAL ....................... 15
INSTALLATION ................................................... 15
Changing Air Cleaner Filter .................................... 15
REMOVAL ........................................................... 15
INSTALLATION ................................................... 15
INTAKE MANIFOLD COLLECTOR .......................... 16
Removal and Installation ........................................ 16
REMOVAL ........................................................... 17
INSPECTION AFTER REMOVAL ....................... 19
INSTALLATION ................................................... 19
ENGINE MECHANICAL
INTAKE MANIFOLD ................................................. 21
Removal and Installation ........................................ 21
REMOVAL ........................................................... 21
INSPECTION AFTER REMOVAL .......................21
INSTALLATION ................................................... 22
EXHAUST MANIFOLD AND THREE WAY CATA-
LYST ........... ................................. .......................... ....23
Removal and Installation ........................................ 23
REMOVAL ........................................................... 23
INSPECTION AFTER REMOVAL .......................25
INSTALLATION ................................................... 25
OIL PAN AND OIL STRAINER ................................. 28
Removal and Installation ........................................ 28
REMOVAL ........................................................... 28
INSPECTION AFTER REMOVAL .......................33
INSTALLATION ................................................... 33
INSPECTION AFTER INSTALLATION ................ 36
IGNITION COIL .............................................. ....... .... 37
Removal and Installation ........................................ 37
REMOVAL ........................................................... 37
INSTALLATION ................................................... 37
SPARK PLUG (PLATINUM-TIPPED TYPE) .............38
Removal and Installation ........................................ 38
REMOVAL ........................................................... 38
INSPECTION AFTER REMOVAL .......................38
INSTALLATION ................................................... 39
FUEL INJECTOR AND FUEL TUBE ........................40
Removal and Installation ........................................ 40
REMOVAL ........................................................... 40
INSTALLATION ................................................... 43
INSPECTION AFTER INSTALLATION ................ 45
ROCKER COVER .....................................................46
Removal and Installation ........................................ 46
REMOVAL ........................................................... 46
INSTALLATION ................................................... 47
FRONT TIMING CHAIN CASE ................................. 49
Removal and Installation ........................................ 49
REMOVAL ........................................................... 49
INSTALLATION ................................................... 52
INSPECTION AFTER INSTALLATION ................ 57
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Revision: 2004 November 2004 Murano
EM-1
TIMING CHAIN .......................................................... 58
Removal and Installation ........................................58
REMOVAL ...........................................................59
INSPECTION AFTER REMOVAL ........................65
INSTALLATION ................................ ............. .......66
INSPECTION AFTER INSTALLATION ................75
CAMSHAFT .............................. ...... ....... ....................77
Removal and Installation ........................................77
REMOVAL ...........................................................77
INSPECTION AFTER REMOVAL ........................79
INSTALLATION ................................ ............. .......82
INSPECTION AFTER INSTALLATION ................85
Valve Clearance ......................................................85
INSPECTION ............................ ............. ..............85
ADJUSTMENT ....................................................88
OIL SEAL ..................................................................90
Removal and Installation of Valve Oil Seal .............90
REMOVAL ...........................................................90
INSTALLATION ................................ ............. .......90
Removal and Installation of Front Oil Seal .............91
REMOVAL ...........................................................91
INSTALLATION ................................ ............. .......91
Removal and Installation of Rear Oil Seal ..............91
REMOVAL ...........................................................91
INSTALLATION ................................ ............. .......92
CYLINDER HEAD ..................................................... 93
On-Vehicle Service .................................................93
CHECKING COMPRESSION PRESSURE .........93
Removal and Installation ........................................94
REMOVAL ...........................................................94
INSPECTION AFTER REMOVAL ........................95
INSTALLATION ................................ ............. .......96
INSPECTION AFTER INSTALLATION ................98
Disassembly and Assembly .................................... 98
DISASSEMBLY ................................................... 99
ASSEMBLY ......................................................... 99
Inspection After Disassembly ...............................101
VALVE DIMENSIONS ............................ ....... .....101
VALVE GUIDE CLEARANCE ....................... .....101
VALVE GUIDE REPLACEMENT ........... ....... .....101
VALVE SEAT CONTACT ....................... ....... .....103
VALVE SEAT REPLACE ME NT .........................103
VALVE SPRING SQUARENESS .......................104
VALVE SPRING DIMENSIONS AND VALVE
SPRING PRESSURE LOAD .............................104
ENGINE ASSEMBLY ..............................................105
Removal and Installation ......................................105
REMOVAL .........................................................106
INSTALLATION ................................ ............. .....109
INSPECTION AFTER INSTALLATION ..............109
CYLINDER BLOCK .................................................110
Disassembly and Assembly ..................................110
DISASSEMBLY ................................................ .. 111
ASSEMBLY ...................................................... ..116
How to Select Piston and Bearing ........................122
DESCRIPTION ..................................................122
HOW TO SELECT PISTON ...............................122
HOW TO SELECT CONNECTING ROD BEAR-
ING .....................................................................123
HOW TO SELECT MAIN BEARING ..................124
Inspection After Disassembly ................................127
CRANKSHAFT END PLAY ................................127
CONNECTING ROD SIDE CLEARANCE .........127
PISTON TO PISTON PIN OIL CLEARANCE .....127
PISTON RING SIDE CLEARANCE ...................128
PISTON RING END GAP ..................................128
CONNECTING ROD BEND AND TORSION .....129
CONNECTING ROD BIG END DIAMETER ......129
CONNECTING ROD BUSHING OIL CLEAR-
ANCE .............................. ...................................129
CYLINDER BLOCK DISTORTION ....................130
MAIN BEARING HOUSING INNER DIAMETER .131
PISTON TO CYLINDER BORE CLEARANCE ..131
CRANKSHAFT MAIN JOURNAL DIAMETER ...132
CRANKSHAFT PIN JOURNAL DIAMETER ......133
CRANKSHAFT OUT-OF-ROUND AND TAPER .133
CRANKSHAFT RUNOUT ..................................133
CONNECTING ROD BEARING OIL CLEAR-
ANCE .............................. ...................................133
MAIN BEARING OIL CLEARANCE ...................134
CRUSH HEIGHT OF MAIN BEARING ..............135
CRUSH HEIGHT OF CONNECTING ROD
BEARING ........................ ...................................135
MAIN BEARING CAP BOL T OUTER DIAMETER .135
CONNECTING ROD BOLT OUTER DIAMETER .136
DRIVE PLATE ....................................................136
OIL JET ..............................................................136
OIL JET RELIEF VALVE ....................................136
SERVICE DATA AND SPECIFICATIONS (SDS) ....137
Standard and Limit ................................................137
GENERAL SPECIFICATIONS ...........................137
DRIVE BELT ......................................................138
INTAKE MANIFOLD CO LLECTOR, INTAKE
MANIFOLD AND EXHAUST MANIFOLD ..........138
SPARK PLUG .................................................. ..138
CAMSHAFT AND CAMSHAFT BEARING ....... ..139
CYLINDER HEAD ........................ ....... ...... ....... ..141
CYLINDER BLOCK ................ ............................144
PISTON, PISTON RING AND PISTON PIN ......145
CONNECTING ROD ..........................................146
CRANKSHAFT ....................... ...... ....... ...... ....... ..147
MAIN BEARING .................................................148
CONNECTING ROD BEARING .......... ...... ....... ..149
Tightening Torque .................................................149
Revision: 2004 November 2004 Murano
EM-2
PRECAUTIONS
PRECAUTIONS PFP:00001
Precautions for Drain Engine Coolant ABS00A7M
Drain engine coolant when engine is cooled.
Precautions for Disconnecting Fuel Piping ABS00A7N
● Before starting work, make sure no fire or spark producing items are in the work area.
● Release fuel pressure before disconnecting and disassembly.
● After disconnecting pipes, plug openings to stop fuel leakage.
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Precautions for Removal and Disassembly ABS00A7O
● When instructed to use SST, use specified tools. Always be careful to work safely, avoid forceful or unin-
structed operations.
● Exercise maximum care to avoid damage to mating or sliding surfaces.
● Cover openings of engine system with ta pe or equivalent, if necessary, to seal out foreign materials.
● Mark and arrange disassembly parts in an organized way for easy troubleshooting and re-assembly.
● When looseni ng nu t s an d b ol t s, a s a b as ic ru le , st a r t wit h the on e fu rt he st o ut si de , the n th e on e d iag on al ly
opposite, and so on. If the order of loosening is specified, do exactly as specified. Power tools may be
used in the step.
Precautions for Inspection, Repair and Replacement ABS00A7P
Before repairing or repla cing, thorou ghly inspec t parts. Inspect new repl acement parts in the s ame way, and
replace if necessary.
Precautions for Assembly an d Installation ABS00A7Q
● Use torque wrench to tighten bolts or nuts to specification.
● When tightening nuts and bolts, as a basic rule, equally tighten in several different steps starting with the
ones in center, then ones on inside and outside diagonally in this order. If the order of tightening is specified, do exactly as spe ci fied.
● Replace with new gasket, packing, oil seal or O-ring.
● Thoroughly wa sh, c lean , an d air- bl ow eac h p art. Care ful ly ch eck en gin e oil o r en gine coolan t p ass ages for
any restriction and blockage.
● Avoid damaging sliding or mating surfaces. Completely remove foreign materials such as cloth lint or dust.
Before assembly, oil sliding surfaces well.
● Release air within route when refilling after draining engine coolant.
● After repairing, start engine and increase engine speed to check engine coolant, fuel, engine oil, and
exhaust gases for leakage.
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Parts Requiring Angle Tightening ABS00A7R
● Use angle wrench [SST: KV10112100 (BT8653-A)] f o r the final tightening of the following engine parts:
– Cylinder head bolts
– Main bearing cap bolts
– Connecting rod cap bolts
– Crankshaft pulley bolt (No angle wrench is required as bolt flange is provided with notches for angle tight-
ening)
● Do not use a torque value for final tigh ten in g.
● The torque value for these parts are for a preliminary step.
● Ensure thread and seat surfaces are clean and coated with engine oil.
Revision: 2004 November 2004 Murano
EM-3
M
PRECAUTIONS
Precautions for Liquid Gasket ABS00A7S
REMOVAL OF LIQUID GASKET SEALING
● After removing mounting nuts and bolts, separate the mating
surface using seal cutter [SST] and remove old liquid gasket
sealing.
CAUTION:
Be careful not to damage the mating surfaces.
● Tap seal cutter to insert it, and then slide it by tapping on the
side as shown in the figure.
● In areas where seal cutter [SST] is difficult to use, use plastic
hammer to lightly tap the parts, to remove it.
CAUTION:
If for some unavoidable reason tool such as screwdriver is
used, be careful not to damage the mating surfaces.
LIQUID GASKET APPLICATION PROCEDURE
1. Using scraper, remove old liquid gasket adhering to the gasket
application surface and the mating surface.
● Remove liquid g asket co mpletely from th e groov e of the g as-
ket application surface, mounting bolts, and bolt holes.
2. Wipe the liquid gasket application surface and the mating surface with white gasoline (lighting and heating use) to remove
adhering moisture, grease and foreign ma terials.
PBIC0002E
3. Attach liquid gasket tube to tube presser [SST: WS39930000
(—)].
Use Genuine RTV Silicone Sealant or equivalent. Refer to
GI-47, "
RECOMMENDED CHEMICAL PRODUCTS AND
SEALANTS" .
4. Apply liqui d gasket withou t breaks to the spec ified locatio n with
the specified dimensions.
● If there is a groove for liquid ga sket application, apply liqui d
gasket to the groove .
● As for bolt holes, normally apply liquid gasket inside the
holes. Occasionally, it should be applied outside the holes.
Make sure to read the text of this manual.
● Within 5 minutes of liquid gasket application, install the mating
component.
● If liquid gasket protrudes, wipe it off immediately.
● Do not retighten mounting bolts or nuts after the installation.
● After 30 minu te s o r mo re h ave passed from the installation, fill
engine oil and engine coolant.
CAUTION:
If there are specific instructions in this manual, observe
them.
PBIC0003E
EMA0622D
SEM159F
Revision: 2004 November 2004 Murano
EM-4
PREPARATION
PREPARATION PFP:00002
Special Service Tools ABS00A7T
The actual shapes of Kent-Moore tools may differ from those of spec ial ser vi ce tool s illust rat ed here.
Tool number
(Kent-Moore No.)
Tool name
Description
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ST0501S000
(—)
Engine stand assembly
1. ST05011000
(—)
Engine stand
2. ST05012000
(—)
Base
KV10106500
(—)
Engine stand shaft
KV10117000
(J41262)
Engine sub-attachment
KV10117001
(—)
Engine sub-attachment
NT042
NT028
NT373
Disassembling and assembling engi ne
KV10117000 has been replaced with
KV10117001 (KV10117000 is no longer in
production, but it is usable).
Installing on cylinder block
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KV10116200
(J26336-A)
Valve spring compressor
1. KV10115900
(J26336-20)
Attachment
2.KV10109220
(—)
Adapter
KV10107902
(J38959)
Valve oil seal puller
NT372
PBIC1650E
NT011
Disassembling valve mechani sm
Part (1) is a component of KV10116200
(J26336-A), but Part (2) is not so.
Replacing valve oil seal
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Revision: 2004 November 2004 Murano
EM-5
Tool number
(Kent-Moore No.)
Tool name
PREPARATION
Description
—
(J39386)
Valve oil seal drift
EM03470000
(J8037)
Piston ring compressor
ST16610001
(J23907)
Pilot bushing puller
KV10111100
(J37228)
Seal cutter
Installing valve oil seal
NT024
Installing piston assembly into cylinder bore
NT044
Removing pilot converter
NT045
Removing oil pan (lower and upper), front
and rear timing chain case, etc.
WS39930000
(—)
Tube presser
KV10112100
(BT8653-A)
Angle wrench
KV10117100
(J3647-A)
Heated oxygen sensor wrench
NT046
Pressing the tube of liquid gasket
NT052
Tightening bolts for bearing cap, cylinder
head, etc. in angle
NT014
Loosening or tightening air fuel ratio sensor 1
For 22 mm (0.87 in) width hexagon nut
NT379
Revision: 2004 November 2004 Murano
EM-6
PREPARATION
Tool number
(Kent-Moore No.)
Tool name
KV10114400
(J38365)
Heated oxygen sensor wrench
NT636
—
(J-45488)
Quick connector release
PBIC0198E
Description
Loosening or tightening heated oxygen
sensor 2
a: 22 mm (0.87 in)
Removing fuel tube quick connectors in
engine room
Commercial Service Tools ABS00A7U
(Kent-Moore No.)
Tool name
(—)
Power tool
Description
Loosening bolts and nuts
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(BT3373-F)
Belt tension gauge
(—)
Manual lift table caddy
(J24239-01)
Cylinder head bolt wrench
PBIC0190E
AMA126
ZZA1210D
NT583
Checking drive belt tension
Removing and installing engine
Loosening and tightening cylinder head bo lt,
and used with angle wrench [SST:
KV10112100 (BT8653-A)]
a: 13 (0.51) dia.
b: 12 (0.47)
c: 10 (0.39)
Unit: mm (in)
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Revision: 2004 November 2004 Murano
EM-7
PREPARATION
(Kent-Moore No.)
Tool name
(—)
Spark plug wrench
(—)
Valve seat cutter set
(—)
Piston ring expander
(—)
Valve guide drift
Description
Removing and installing spark plug
NT047
Finishing valve seat dimensions
NT048
Removing and installing piston ring
NT030
Removing and installing valve guide
Intake and Exhaust:
a: 9.5 mm (0.374 in) dia.
b: 5.5 mm (0.217 in) dia.
(—)
Valve guide reamer
(J-43897-18)
(J-43897-12)
Oxygen sensor thread cleaner
(—)
Anti-seize lubricant (Permatex 133AR
or equivalent meeting MIL
specification MIL-A-907)
NT015
NT016
AEM488
AEM489
(1): Reaming valve guide inner hole
(2): Reaming hole for oversize valve guid e
Intake and Exhaust:
1 : 6.0 mm (0.236 in) dia.
d
2 : 10.2 mm (0.402 in) dia.
d
Reconditioning the exhaust system thre ads
before installing a new heated oxygen sensor
(Use with anti-seize lubricant shown below.)
a: J-43897-18 [18 mm (0.71 in) dia.] for
zirconia heated oxygen sensor
b: J-43897-12 [12 mm (0.47 in) dia.] for
titania heated oxygen sensor
Lubricating oxygen sensor thread cleani ng
tool when reconditioning exhaust syst em
threads
Revision: 2004 November 2004 Murano
EM-8
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING PFP:00003
NVH Troubleshooting —Engine Noise ABS00327
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PBIC2543E
Revision: 2004 November 2004 Murano
EM-9
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
Use the Chart B elow to Help You Find the Cause of the Symptom. ABS00A7V
1. Locate the area where noise occurs.
2. Confirm the type of noise.
3. Specify the operating condition of engine.
4. Check specified noise source.
If necessar y, repair or replace these parts.
Operating condition of engine
Location
of noise
Top of
engine
Rocker
cover
Cylinder
head
Crankshaft pulley
Cylinder
block
(Side of
engine)
Oil pan
Front of
engine
Timing
chain
case
Front of
engine
A: Closely related B: Related C: Sometimes related —: Not related
Type of
noise
Ticking or
clicking
Rattle C A — A B C
Slap or
knock
Slap or
rap
Knock A B C B B B
Knock A B — A B C
T apping or
ticking
Squeaking or fizzing
CreakingABABAB
Squall
Creak
Before
warm-
up
—A—BB—
After
warm-
CA—AB—
A——BB A
AA—BBB
AB—B—C
AB—BAB
up
When
start-
ing
When
idling
When
racing
While
driving
Source of
noise
Tappet
noise
Camshaft
bearing
noise
Piston pin
noise
Piston
slap noise
Connecting rod
bearing
noise
Main
bearing
noise
Timing
chain and
chain tensioner
noise
Drive belts
(Sticking
or slipping)
Drive belts
(Slipping)
Water
pump
noise
Check item
Valve clearance EM-85
Camshaft runout
Camshaft journal oil
clearance
Piston to piston pin oil
clearance
Connecting rod bushing oil clearance
Piston to cylinder bore
clearance
Piston ring side clearance
Piston ring end gap
Connecting rod bend
and torsion
Connecting rod bushing oil clearance
Connecting rod bearing oil clearance
Main bearing oil clearance
Crankshaft runout
Timing chain cracks
and wear
Timing chain tensioner
operation
Drive belts deflection
Idler pulley bearing
operation
Water pump operation
Refer-
ence page
EM-79
EM-79
EM-127
EM-129
EM-131
EM-128
EM-128
EM-129
EM-129
EM-133
EM-134
EM-133
EM-65
EM-58
EM-11
CO-22,
"WATER
PUMP"
Revision: 2004 November 2004 Murano
EM-10
DRIVE BELTS
DRIVE BELTS PFP:02117
Checking Drive Belts ABS00329
WARNING:
Be sure to perform when the engine is stopped.
1. Inspect belts for cracks, fraying, wear and oil. If necessary, replace.
2. Inspect drive belt deflection or tension at a point on belt midway
between pulleys.
● Inspection s hould be done only when en gine is cold, or over
30 minutes after engine is stopped.
● Measure belt tension with tension gauge (BT3373-F or equiv-
alent) at points marked shown in the figure.
● When measuring deflection, apply 98 N (10 kg, 22 lb) at the
marked point.
● Adjust if belt deflectio n exceeds the limit or if belt tension is
not within specifications.
CAUTION:
● When checking belt deflection or tension immediately after installation, first adjust it to the
specified value. Then, after turn ing the crankshaft two turns or more, re-adjust to the s pecified
value to avoid variation in deflection between pulleys.
● Tighten idler pulley lock nut by hand and measure deflec-
tion or tension without looseness.
PBIC2449E
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Belt Deflection and Tension
Deflection adjustment Unit: mm (in) Tension adjustment* Unit: mm (in)
Used belt
Limit After adjustment Limit
Alternator and A/C
compressor
Power steering oil
pump
Applied pushing
force
*: If belt tension gauge cannot be installed at check points show n, ch eck dr iv e belt tensi on at different locat ion on th e bel t.
7 (0.28)
11 (0.43)
98 N (10 Kg, 22 lb) —
4.2 - 4.6
(0.17 - 0.18)
7.3 - 8
(0.29 - 0.30)
New belt
3.7 - 4.1
(0.15 - 0.16)
6.5 - 7.2
(0.26 - 0.28)
294 (30, 66)
196 (20, 44)
Used belt
After adjust-
ment
730 - 818
(74.5 - 83.5,
164 - 184)
495 - 583
(50.5 - 59.5,
111 - 131)
PBIC1162E
New belt
838 - 926
(85.5 - 94.5,
188 - 208)
603 - 691
(61.5 - 70.5,
135.6 - 155.4)
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Tension Adjust me nt ABS0036V
Portion Belt tightening method for adjustment
Power steering oil pump belt Adjusting bolt on power steering oil pump
Alternator and air conditioner compressor belt Adjusting bolt on idler pulley
CAUTION:
● When belt is replaced with a new one, adjust it to value for “New belt” to accommodate for insuffi-
cient adaptability with pulley gr ooves.
Revision: 2004 November 2004 Murano
EM-11
DRIVE BELTS
● When deflection or tens ion of belt being used ex ce ed s “Li mit”, adjust it to v alu e for “A fter adjust-
ment”.
● When checking belt deflect ion or tensio n imme diately after installation, first adj ust it to the speci -
fied value. Then, after turni ng th e c rank sh aft two turns or mo re, re -ad jus t to th e s pec ifie d v alu e to
avoid variation in deflection between pulleys.
● When installing belt, make sure that it is correctly engaged with pulley groove.
● Keep engine oil, working fluid and engine coolant away from belt.
● Do not twist or bend belt excessively.
ALTERNATOR AND AI/C COMPRESSOR BELT
1. Remove splash guard (RH).
2. Loosen idler pulley lock nut (A) and adjust tension by turning
adjusting nut (B).
● For specified belt tension, refer to EM-11, "Checking Drive
Belts" .
3. Tighten lock nut (A).
: 34.8 N·m (3.5 kg-m, 26 ft-lb)
4. Tighten adjusting nut (B).
: 5.4 N·m (0.55 kg-m, 48 in-lb)
PBIC2450E
POWER STEERING OIL PUMP BELT
1. Remove splash guard (RH).
2. Loosen lock bolt (C).
3. Loosen power steering oil pump mounting bolt (D).
● Bolt head (D) is engine rear side.
4. Adjust tension by turning adjusti n g bolt (E).
● For specified belt tension, refer to EM-11, "Checking Drive Belts" .
NOTE:
Adjusting bolt (E) is loosened with counterclockwise rota tion.
5. Tigh ten lock bolt (C).
: 28.0 N·m (2.9 kg-m, 21 ft-lb)
6. Tighten power steering oil pump mounting bolt (D).
: 43.2 N·m (4.4 kg-m, 32 ft-lb)
Removal and Installation ABS0036W
REMOVAL
1. Remove splash guard (RH).
2. Fully loosen each b elt by follo wing the gu idel ine s in EM- 11, "
A/C compressor belt and then power steeri ng oil pump belt.
Tension Adjustm ent" . Rem ove al terna tor an d
Revision: 2004 November 2004 Murano
EM-12
DRIVE BELTS
CAUTION:
Grease is applied to idler pulley adjusting bolt. Be careful to keep grease away from belt.
INSTALLATION
1. Install each belt to pulley in the reverse order of removal.
CAUTION:
● Make sure belt is correctly engaged with the pulley groove.
● Make sure that for engine oil , working fluid and engine coolant do not adhere to belt and each
pulley groove.
2. Adjust belt tension. Refer to EM-11, "
3. Tighten each nuts and bolts to the specified torque.
4. Make sure that tension of each belt is within the standard. Refer to EM- 11, "
Tension Adjustment" .
Checking Drive Belts" .
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Revision: 2004 November 2004 Murano
EM-13
AIR CLEANER AND AIR DUCT
AIR CLEANER AND AIR DUCT PFP:16500 Removal and Installation ABS0033C
PBIC1806E
1. Air cleaner case (lower) 2. Air cleaner filter 3. Air cleaner case (upper)
4. Air duct assem bl y 5. Harness brac ket 6. Mass air flow sensor
7. O-ring 8. PCV hose 9. Clip
10. Radiator cover grill (right side) 11. Air duct (inlet) 12. Radiator cover grill (left side)
13. Resonator 14. Bracket 15. Grommet
16. Bracket
REMOVAL
1. Remove radiator cover grills (right and left side).
2. Remove air duct (inlet).
3. Disconnect harness connector from ma ss air flow sensor.
4. Disconnect PC V hose.
5. Remove air cleaner cases (upper and lower) with mass air flow sensor and air duct assembly disconnecting their joints.
● Add mating marks as nece s sa ry for easier installation.
6. Remove mass air flow sensor from air cleaner case (upper), as necessary.
CAUTION:
Handle mass air flow sensor with following cares.
● Do not shock it.
● Do not disassemble it.
● Do not touch its sensor.
Revision: 2004 November 2004 Murano
EM-14
AIR CLEANER AND AIR DUCT
7. Remove resonator, removing left side fender protector (front), as necessary.
INSPECTION AFTER REMOVAL
Inspect air duct assembly for crack or tear.
● If anything found, replace air duct assembly.
INSTALLATION
Note the following, and install in the reverse order of removal.
● Align marks. Attach each joint. Screw clamps firmly.
Changing Air Cleaner Filter ABS00BYS
REMOVAL
1. Unhook air cleaner case (lower) side clips and lift up air cleaner case (upper).
2. Remove air cleaner filter.
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INSTALLATION
Install in the reverse order of removal.
PBIC1165E
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Revision: 2004 November 2004 Murano
EM-15
INTAKE MANIFOLD COLLECTOR
INTAKE MANIFOLD COLLECTOR PFP:14003 Removal and Installation ABS00FPR
PBIC1906E
1. Electric th rott le cont rol act uat or 2. Gasket 3. Intake manifold collector (upp er)
4. PCV hose 5. Harness bracket 6. Gasket
7. Power valve 8. VIAS control solenoid valve 9. V acuum tank
10. Gasket 11. Intake manifold collector (lower) 12.
13. Gasket 14. EVAP hose 15. Purge resonator
16. Service port 17. Fuel hose 18. Intake manifold collector support
EVAP canister purge volume control
solenoid valve
Revision: 2004 November 2004 Murano
EM-16
INTAKE MANIFOLD COLLECTOR
REMOVAL
WARNING:
To avoid the da nge r of being scalde d, nev er drai n engi ne coo lan t whe n engi ne is hot.
1. Remove engine cover.
CAUTION:
Be careful not to damage or scratch engine cover.
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PBIC1910E
2. Remov e air cleaner case (upper) with ma ss air flow sens or and air duct as sembly. Refer to EM-14, "
AIR
CLEANER AND AIR DUCT" .
3. Drain engine coolant, or when water hoses are disconnected, attach plug to prevent engine coolant leakage. Refer to CO-9, "
Changing Engine Coolant" .
CAUTION:
Perform when engine is cold.
4. Remove electric throttle control actuator as follows:
a. Disconnect harness connector.
b. Loosen mounting b olts in reverse order as shown in the figure.
CAUTION:
● Handle carefully to avoid any shock to electric throttle
control actuator.
● Do not disassemble.
KBIA2007J
5. Disconnect water hoses from intake manifold collector (upper).
● When engine coola nt is not drained fr om rad iator, attach plug to water hoses to pre vent engine coolant
leakage.
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Revision: 2004 November 2004 Murano
EM-17
INTAKE MANIFOLD COLLECTOR
6. Remove the following parts:
● Vacuum hose
● PCV hose
● Power steering hose bracket
● Intake manifold collector support
● Harness bracket
PBIC2455E
7. Disconnect EVAP hoses and harness connector from EVAP canister purge volume control solenoid valve.
8. Remove EVAP canister purge volume control solenoid valve.
9. Remove VIAS control solenoid valve and vacuum tank.
● Add mating marks as nece s sa ry for easier installation.
10. Loosen mounting nuts and bolts in reverse order as shown in
the figure with power tool , and remove intake manifold col lector
(upper and lower) assembly and gasket.
CAUTION:
Cover engine openings to avoid entry of foreign materials.
11. Loosen mounting bolt s in rev er se or d er as sh own in th e fig ur e to
remove intake manifold collector (upper) from intake manifold
collector (lower) with power tool.
12. Loosen mount ing bo l ts in reverse order as shown in th e fig ur e to
remove power valve from intake manifold collector (lower).
SEM713G
SEM712G
SEM714G
Revision: 2004 November 2004 Murano
EM-18
INTAKE MANIFOLD COLLECTOR
INSPECTION AFTER REMOVAL
Surface Distortion
● Check the surface distortion of intake manifold collector (lower)
with straight edge and feeler gauge.
Limit : 0.1 mm (0.004 i n)
● If it exceeds the limit, replace intake manifold collector (lower).
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PBIC1168E
INSTALLATION
Note the following, and install in the reverse order of removal.
Power V a lve
Tighten mounting bolts in nu merical order as shown in the figure.
Intake Manifold Collector (Upper)
Tighten mounting bolts in nu merical order as shown in the figure.
SEM714G
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SEM712G
Intake Manifold Collector (Lower)
Tighten mounting nu ts and bolts in numerical order a s shown i n the
figure.
SEM713G
Electric Throttle Control Actuator
● Install gasket with positioning no-protrusion surface upward or downward.
Revision: 2004 November 2004 Murano
EM-19
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INTAKE MANIFOLD COLLECTOR
● Tighten mounting bolts in numerical order as shown in the fig-
ure.
● Perform the “Throttle V alve Closed Position Learning” when har-
ness connector of electric throttle control actuator is disconnected. Refer to EC-43, "
Learning" .
● Perform the “Idle Air Volume Learning” and “Throttle Valve
Closed Position Learning” when electric throttle control actuator
is replaced. Refer to EC-43, "
Throttle Valve Closed Position
Idle Air Volume Learning" .
KBIA2007J
Revision: 2004 November 2004 Murano
EM-20
INTAKE MANIFOLD
INTAKE MANIFOLD PFP:14003
Removal and Installation ABS0033D
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1. Intake manifold 2. Gasket
REMOVAL
1. Release fuel pre ssure . Refe r to EC-45, "FUEL PRESSURE RELEASE" .
2. Remove in take manifold collectors (upper and l ower). Refer to EM-16, "
TOR" .
3. Remove fuel tube and fuel injector assembly. Refer to EM-40, "
4. Loosen mounting nuts and bolts in reverse order as shown in
the figure to remove intake manifold with power tool.
5. Remove gaskets.
CAUTION:
Cover engine openings to avoid entry of foreign materials.
FUEL INJECTOR AND FUEL TUBE" .
PBIC2458E
INTAKE MANIFOLD COL LEC-
PBIC0778E
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INSPECTION AFTER REMOVAL
Surface Distortion
● Check the surface di stortion of the intake manifold mating sur-
faces with straightedge and feeler gauge.
Limit : 0.1 mm (0.0 04 in)
● If it exceeds the limit, replace intake manifold.
PBIC0870E
Revision: 2004 November 2004 Murano
EM-21
INTAKE MANIFOLD
INSTALLATION
Note the following, and install in the reverse order or removal.
Intake Manifold
● If stud bolts were removed, install them and tighten to the specified torque below.
: 9.8 - 11.8 N·m (1.0 - 1.2 kg-m, 87 - 104 in-lb)
● Tighten all mounting nuts and bolts to the specified torque in two
or more steps in numerical order shown in figure.
1st step
: 4.9 - 9.8 N·m (0.5 - 1.0 kg-m, 4 - 7 ft-lb)
2nd step and after
: 26.5 - 31.4 N·m (2.7 - 3.2 kg-m, 20 - 23 ft-lb)
PBIC0778E
Revision: 2004 November 2004 Murano
EM-22
EXHAUST MANIFOLD AND THREE WAY CATALYST
EXHAUST MANIFOLD AND THREE WAY CA TALYST PFP:14004
Removal and Installation ABS0032G
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PBIC2461E
1. Air fuel ratio sensor 1 (bank 1) 2. Exhaust manifold cover (right bank) 3. Exhaust manifo ld (right bank)
4. Ring gasket 5. Three way catalyst (right bank) 6.
7. Heated oxygen sensor 2 (bank 1) 8. Gasket 9. G as ket
10. Air fuel ratio sensor 1 (bank 2) 11. Three way catalyst (left bank) 12. Three way catalyst cover
13. Three way catalyst cover 14. Three way catalyst cover 15.
16. Heated oxygen sensor 2 (bank 2) 17. Exhaust manifold cover (left bank) 18. Ex haust manifold (left bank)
Three way catalyst support (right
bank)
Three way catalyst support (left
bank)
REMOVAL
WARNING:
● Perform the work when the exhaust and cooling system have comple tely cooled down.
● When removing engine m ounti ng th roug h bolts and nuts, lift the engine up slightly for sa fety w ith
transmissi on jack. Refer to EM-105, "
1. Drain engine coolant. Refer to CO-9, "
CAUTION:
● Perform this step when engine is cold.
● Do not spill engine coolant on drive belts.
2. Remove following parts:
● Engine cover; Refer to EM-16, "INTAKE MANIFOLD COLLECTOR" .
● Radiator cover gri lles, air duct (inl et), air cl eaner cases (upper) wit h mass air flow se nsor and air duct
assembly; Refer to EM-14, "
AIR CLEANER AND AIR DUCT" .
ENGINE ASSEMBLY" .
Changing Engine Coolant" .
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Revision: 2004 November 2004 Murano
EM-23
EXHAUST MANIFOLD AND THREE WAY CATALYST
● Undercover
● Radiator and r adiator cooling fan assembly; Refer to CO-13, "RADIATOR" .
3. Remove exhaust front tube mounting bracket and then remove exhaust front tube.Refer to EX-3,
"EXHAUST SYSTEM" .
4. Remove front w iper ar m (RH) a nd cow l top cov er (righ t) (when RH exh aust ma nifold and th ree way catalyst is removed). Refer to WW-4, "
5. Remove heat insulator.
6. Support the tr an sa xle b ot t om wi th jac k. ( AWD models) (when RH exha us t ma ni fol d an d th re e way ca talyst
is removed)
CAUTION:
Put a peace of wood or so mething similar as the supporting surfac e, be careful not to damage
transaxle.
7. Remove rear en gine mounting insulator. (AWD models) Refer to EM-105, "
8. Disconnect harness connector and remove air fuel ratio sensor
1 on both banks with heated oxygen sensor wrench [SST].
● Put marks to identify installation positions of each air fuel ratio
sensor 1.
CAUTION:
● Be careful not to damage air fuel ratio sensor 1.
● Discard any air fuel ratio sensor 1 which has been
dropped from a height of mo re tha n 0 .5 m (1 9.7 in) onto a
hard surface such as a concrete floor; replace with a new
sensor.
NOTE:
Figure is shown as an example of left bank.
9. Disconnect harness connector and remove heated oxygen sensor 2 on both ba nks with heated oxygen sensor wrench [SST].
● Put marks to ident if y in stallation positions of ea ch he ated ox y-
gen sensor 2.
CAUTION:
● Be careful not to damage heated oxygen sensor 2.
● Discard any heated oxygen sensor 2 which has been
dropped from a height of mo re tha n 0 .5 m (1 9.7 in) onto a
hard surface such as a concrete floor; replace with a new
sensor.
FRONT WIPER AND WASHER SYSTEM" and EI-21, "COWL TOP" .
PBIC2503E
ENGINE ASSEMBLY" .
PBIC2674E
PBIC2675E
10. Remove exhaust manifold covers (right and left banks) and three way catalyst covers.
Revision: 2004 November 2004 Murano
EM-24
EXHAUST MANIFOLD AND THREE WAY CATALYST
11. Remove mounting bolts in reverse o rder as shown in the figure
to remove three way catalyst supports (right and left banks).
12. Remove three way catalysts (right and left banks) by loosening bolts first and then removing nuts.
CAUTION:
Handle carefully to avoid any shock to th ree way catalyst.
13. Loos en mo un tin g n uts in rev ers e o rder as shown in the fi gu re to
remove exhaust manifolds (right and left banks).
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14. Remove gaskets.
CAUTION:
Cover engine openings to avoid entry of foreign materials.
INSPECTION AFTER REMOVAL
Surface Distortion
● Check the surface distortion of the exhaust manifold mating sur-
faces with straightedge and feeler gauge.
Limit : 0.3 mm (0.012 in)
PBIC2464E
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● If it exceeds the limit, replace exhaust manifold.
PBIC1173E
INSTALLATION
Note the following, and install in the reverse order of removal.
Revision: 2004 November 2004 Murano
EM-25
EXHAUST MANIFOLD AND THREE WAY CATALYST
Exhaust Manifold Gasket
Install in the direction indicated in the figure.
Exhaust Manifold
● If stud bolts were removed, install them and tighten to the torque specified below.
: 14.2 - 16.6 N·m (1.5 - 1.6 kg-m, 11 - 12ft-lb)
● Ti ght en moun tin g nu t s i n nu meri ca l orde r as show n in the figu r e.
KBIA1051E
PBIC2464E
Three Way Catalyst Supports
1. Temporarily tighten three way catalyst support mounting bolts.
2. Tighten three way catalyst support mounting bolts to specified
torque in numerical order as shown in th e figure.
PBIC2463E
Air Fuel Ratio Sensor 1 and Heated Oxygen Sensor 2
● Install air fuel ratio sensor 1 and heated oxygen sensor 2 in the original position.
Revision: 2004 November 2004 Murano
EM-26
EXHAUST MANIFOLD AND THREE WAY CATALYST
● Install referring the following if the installation positions cannot
be identified.
Glass tube color
Air fuel ratio sensor 1 : Black
Heated oxygen sensor 2 : White
CAUTION:
● Before installing a new heated oxygen sensor, clean
exhaust system threads using oxygen sensor thread
cleaner (commercial service tool: J-43897-18 or J43897-12)
and apply anti-seize lubricant (commercial service tool).
● Do not over torque h ea ted ox yg en sensor. Doing so may cause dama ge to heated oxyg en se ns or,
resulting in “MIL” coming on.
PBIC2652E
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Revision: 2004 November 2004 Murano
EM-27
OIL PAN AND OIL STRAINER
OIL PAN AND OIL STRAINER PFP:11110 Removal and Installation ABS00FPS
1. Oil pan (upper) 2. O-ring 3. Oil pan gasket
4. Oil pressure switch 5. Relief valve 6. O-ring
7. Oil cooler 8. Connec tor bolt 9. Oil filter
10. Oil straine r 11. Drain plug 12. Drain plug washer
13. Oil pan (lower) 14. Rear plat e cover 15. Harness brack et
16. Cranksh af t pos ition sensor (POS) 17. Seal rubber 18. Oil pan gasket
REMOVAL
2WD Model
WARNING:
To avoid the danger of being scalded, do not drain engine oil when engine is hot.
NOTE:
When removing oil pan (lower) or oil strainer only, take step 1 then step 10 and 11.
1. Drain engine oil. Refer to LU-8, "
CAUTION:
● Perform this step when engine is cold.
● Do not spill engine oil on drive belts.
2. Drain engine coolant. Refer to CO-9, "
CAUTION:
● Perform this step when engine is cold.
● Do not spill engine coolant on drive belts.
3. Remove following parts:
Changing Engine Oil" .
Changing Engine Coolant" .
PBIC2676E
Revision: 2004 November 2004 Murano
EM-28
OIL PAN AND OIL STRAINER
● Engine cover; Refer to EM-16, "INTAKE MANIFOLD COLLECTOR" .
● Undercover
● Splash guard (RH)
● Exhaust front tube; Refer to EX-3, "EXHAUST SYSTE M" .
● Drive belts; Refer to EM -11, "DRIVE BELTS" .
4. Remove A/C compressor with piping connected, and temporarily secure it to aside. Refer to ATC-131,
"Components" .
5. Remove three way catalysts (right and left banks) from exhaust manifolds (right and left banks). Refer to
EM-23, "
6. Remove oil pressure switch. Refer to LU-7, "
7. Remove crankshaft position sensor (POS).
CAUTION:
● Handle carefully to avoid dropping and shocks.
● Do not disassemble.
● Do not allow metal powder to adhere to magnetic part at sensor tip.
● Do not place sensor in a location where it is exposed to magnetism.
8. Remove oil filter. Refer to LU-9, "OIL FILTER" .
9. Remove oil cooler and water pipes. Refer to LU-10, "
10. Remove oil pan (lower) as follows:
a. Loosen mounting b olts in reverse order as shown in the figure.
EXHAUST MANIFOLD AND THREE WAY CATALYST" .
OIL PRESSURE CHECK" .
OIL COOLER" .
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b. Insert seal cutter [SST] between oil pan (lower) and oil pan
(upper).
CAUTION:
● Be careful not to damage the mating surfaces.
● Do not insert screwdriver, this will damage the mating
surfaces.
c. Slide seal cu tter by tapping on th e sid e of t he too l wi th hamm er.
Remove oil pan (lower).
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SEM365E
SEM960F
Revision: 2004 November 2004 Murano
EM-29
OIL PAN AND OIL STRAINER
11. Remove oil strainer.
12. Remove oil pan (upper) as follows:
a. Remove transaxle joint bolts which pierce oil pan (upper). Refer
to CVT-224, "
TRANSAXLE ASSEMBLY" .
PBIC1766E
b. Loosen mounting bolts in reverse order as shown in the figure.
c. Insert suitable tool into the notch of oil pan (upper) as shown (1).
Pry off oi l pan (upper) by moving tool up and down as shown (2)
to remove oil pan (upper).
SEM949G
PBIC1636E
SEM155F
Revision: 2004 November 2004 Murano
EM-30
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