2003 NISSAN X-TRAIL engine oil

EM-4 INSTALLATION ..................................................199
Disassembly and Assembly ..................................201
DISASSEMBLY .................................................201
ASSEMBLY .......................................................202
INSPECTION AFTER DISASSEMBLY ..............203
ENGINE ASSEMBLY ..............................................208
Removal and Installation ......................................208
REMOVAL .........................................................209
INSTALLATION ..................................................211
INSPECTION AFTER INSTALLATION ..............211
CYLINDER BLOCK .................................................212
Disassembly and Assembly ..................................212
DISASSEMBLY .................................................213
ASSEMBLY .......................................................217
How to Select Piston and Bearing ........................222
DESCRIPTION ..................................................222
HOW TO SELECT PISTON ...............................222
HOW TO SELECT CONNECTING ROD BEAR-
ING ....................................................................223
HOW TO SELECT MAIN BEARING ..................224
Inspection After Disassembly ...............................226
CRANKSHAFT END PLAY ................................226
CONNECTING ROD SIDE CLEARANCE .........226
PISTON TO PISTON PIN CLEARANCE ...........226
PISTON RING SIDE CLEARANCE ...................227
PISTON RING END GAP ..................................227
CONNECTING ROD BEND AND TORSION .....228
CONNECTING ROD BIG END INNER DIAME-
TER ...................................................................228
CONNECTING ROD BUSHING OIL CLEAR-
ANCE .................................................................228
CYLINDER BLOCK TOP SURFACE DISTOR-TION ..................................................................229
MAIN BEARING HOUSING INNER DIAMETER .229
PISTON TO CYLINDER BORE CLEARANCE ..230
CRANKSHAFT JOURNAL OUTER DIAMETER .231
CRANKSHAFT PIN OUTER DIAMETER ..........231
CRANKSHAFT OUT-OF-ROUND AND TAPER .231
CRANKSHAFT RUNOUT ..................................232
CONNECTING ROD BEARING OIL CLEAR-
ANCE .................................................................232
MAIN BEARING OIL CLEARANCE ...................233
CRUSH HEIGHT OF MAIN BEARING ..............233
CRUSH HEIGHT OF CONNECTING ROD
BEARING ...........................................................233
MAIN BEARING CAP BOLT DEFORMATION ...234
CONNECTING ROD BOLT DEFORMATION ....234
OIL JET ..............................................................234
OIL JET RELIEF VALVE ....................................234
FLYWHEEL DEFLECTION ................................235
MOVEMENT AMOUNT OF FLYWHEEL ...........235
SERVICE DATA AND SPECIFICATIONS (SDS) ....236
Standard and Limit ................................................236
GENERAL SPECIFICATIONS ...........................236
INTAKE MANIFOLD AND EXHAUST MANI-
FOLD .................................................................236
DRIVE BELTS ....................................................236
CYLINDER HEAD ..............................................237
VALVE ................................................................237
CAMSHAFT .......................................................241
CYLINDER BLOCK ............................................241
PISTON, PISTON RING AND PISTON PIN ......242
CONNECTING ROD ..........................................243
CRANKSHAFT ...................................................243
AVAILABLE MAIN BEARING .............................244
AVAILABLE CONNECTING ROD BEARING .....244
MISCELLANEOUS COMPONENTS ..................244
Tightening Torque .................................................245

PRECAUTIONS
EM-5
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[QR]PRECAUTIONSPFP:00001
Precautions for Drain Engine CoolantEBS00KN0
Drain engine coolant when engine is cooled.
Precautions for Disconnecting Fuel PipingEBS00KN1

Before starting work, make sure no fire or spark producing items are in the work area.

Release fuel pressure before disassembly.

After disconnecting pipes, plug openings to stop fuel leakage.
Precautions for Removal and DisassemblyEBS00KN2

When instructed to use special service tools, use the specified tools. Always be careful to work safely,
avoid forceful or uninstructed operations.

Exercise maximum care to avoid damage to mating or sliding surfaces.

Cover openings of engine system with tape or the equivalent, if necessary, to seal out foreign materials.

Mark and arrange disassembly parts in an organized way for easy troubleshooting and re-assembly.

When loosening nuts and bolts, as a basic rule, start with the one furthest outside, then the one diagonally
opposite, and so on. If the order of loosening is specified, do exactly as specified.
Precautions for Inspection, Repair and ReplacementEBS00KN3
Before repairing or replacing, thoroughly inspect parts. Inspect new replacement parts in the same way, and
replace if necessary.
Precautions for Assembly and InstallationEBS00MRZ

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 speci-
fied, do exactly as specified.

Replace with new gasket, packing, oil seal or O-ring.

Thoroughly wash, clean, and air-blow each part. Carefully check oil or coolant passages 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 coolant.

Before starting engine, apply fuel pressure to fuel lines with turning ignition switch “ON” (with engine
stopped). Then make sure there are no leaks at fuel line connections.

After repairing, start engine and increase engine speed to check engine coolant, fuel, engine oil, and
exhaust systems for leakage.
Parts Requiring Angle TighteningEBS00KN5

Use an angle wrench (special service tool: KV10112100) for the final tightening of the following engine
parts.
–Cylinder head bolts
–Lower cylinder block bolts
–Connecting rod cap bolts
–Crankshaft pulley bolt (No angle wrench is required as the bolt flange is provided with notches for angular
tightening)
–Balancer unit

Do not use a torque value for final tightening.

The torque value for these parts are for a preliminary step.

Ensure thread and seat surfaces are clean and coated with engine oil.

EM-6
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PRECAUTIONS

Precautions for Liquid GasketEBS00MRW
REMOVAL OF LIQUID GASKET

After removing the mounting bolts and nuts, separate the mating
surface using a seal cutter (special service tool) and remove the
old liquid gasket sealing.
CAUTION:
Be careful not to damage the mating surfaces.

In areas where seal cutter (special service tool) is difficult to use,
use a plastic hammer to lightly tap (1) seal cutter where the liq-
uid gasket is applied. Use a plastic hammer to slide seal cutter
(2) by tapping on the side.
CAUTION:
If for some unavoidable reason a tool such as a flat-bladed
screwdriver is used, be careful not to damage the mating
surfaces.
LIQUID GASKET APPLICATION PROCEDURE
1. Using a scraper, remove the old liquid gasket adhering to the liq-
uid gasket application surface and the mating surface.

Remove the liquid gasket completely from the groove of the
liquid gasket application surface, mounting bolts and bolt
holes.
2. Wipe the liquid gasket application surface and the mating sur-
face with white gasoline (lighting and heating use) to remove
adhering moisture, grease and foreign materials.
3. Attach liquid gasket tube to the tube presser (special service
tool).
Use Genuine Liquid Gasket or equivalent.
4. Apply the liquid gasket without breaks to the specified location
with the specified dimensions.

If there is a groove for the liquid gasket application, apply the
liquid gasket to the groove.

As for the bolt holes, normally apply the liquid gasket inside
the holes. Occasionally, it should be applied outside the
holes. Make sure to read the text of service manual.

Within five minutes of liquid gasket application, install the mat-
ing component.

If the liquid gasket protrudes, wipe it off immediately.

Do not retighten mounting bolts or nut after the installation.

Wait 30 minutes or more after installation before refilling
engine oil and engine coolant.
CAUTION:
If there are instructions in this manual, observe them.
PBIC0275E
PBIC0003E
PBIC2160E
SEM159F

PREPARATION
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PREPARATIONPFP:00002
Special Service ToolsEBS00L7N
Tool number
Tool nameDescription
KV10111100
Seal cutterRemoving oil pan and timing chain case
ST0501S000
Engine stand assembly
1. ST05011000
Engine stand
2. ST05012000
BaseDisassembling and assembling
KV10106500
Engine stand shaft
KV10115300
Engine sub-attachment
KV10116200
Valve spring compressor
1. KV10115900
Attachment
2. KV10109220
AdapterDisassembling and assembling valve
mechanism
Part (1) is a component of KV10116200, but
Part (2) is not so.
KV10112100
Angle wrenchTightening bolts for bearing cap, cylinder
head, etc.
KV10117100
Heated oxygen sensor wrenchLoosening or tightening heated oxygen
sensors with 22 mm (0.87 in) hexagon nut
S-NT046
NT042
NT028
ZZA1078D
PBIC1650E
S-NT014
NT379

EM-8
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PREPARATION

KV10107902
Valve oil seal puller
1. KV10116100
Valve oil seal puller adapterRemoving valve oil seal
KV10115600
Valve oil seal driftInstalling valve oil seal
Use side A.
a: 20 (0.79) dia. d: 8 (0.31) dia.
b: 13 (0.51) dia. e: 10.7 (0.421) dia.
c: 10.3 (0.406) dia. f: 5 (0.20) dia.
Unit: mm (in)
EM03470000
Piston ring compressorInstalling piston assembly into cylinder bore
ST16610001
Pilot bushing pullerRemoving pilot convertor
WS39930000
Tube presserPressing the tube of liquid gasket
KV11103000
Pulley pullerRemoving crankshaft pulley
Quick connector release Removing fuel tube quick connectors in
engine room
(Available in SEC. 164 of PARTS CATALOG:
Part No. 16441 6N210) Tool number
Tool nameDescription
S-NT605
S-NT603
S-NT044
S-NT045
S-NT052
NT676
PBIC0198E

EM-12
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NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING

Use the Chart Below to Help You Find the Cause of the Symptom.EBS00L7Q
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 necessary, repair or replace these parts.
A: Closely related B: Related C: Sometimes related —: Not relatedLocation
of noiseType of
noiseOperating condition of engine
Source of
noiseCheck itemRefer-
ence page Before
warm-
upAfter
warm-
upWhen
start-
ingWhen
idlingWhen
racingWhile
driving
To p o f
engine
Rocker
cover
Cylinder
headTicking or
clickingCA—AB—Tappet
noiseValve clearanceEM-61
Rattle C A — A B CCamshaft
bearing
noiseCamshaft journal oil
clearance
Camshaft runoutEM-56EM-55
Crank-
shaft pul-
ley
Cylinder
block
(Side of
engine)
Oil panSlap or
knock—A—BB—Piston pin
noisePiston to piston pin oil
clearance
Connecting rod bush-
ing oil clearanceEM-99
EM-101
Slap or
rapA ——BBAPiston
slap noisePiston to cylinder bore
clearance
Piston ring side clear-
ance
Piston ring end gap
Connecting rod bend
and torsionEM-104EM-100
EM-100
EM-101
Knock A B CBBBConnect-
ing rod
bearing
noiseConnecting rod bush-
ing oil clearance
Connecting rod bear-
ing oil clearanceEM-101EM-105
Knock A B — A B CMain
bearing
noiseMain bearing oil clear-
ance
Crankshaft runoutEM-106EM-105
Front of
engine
Front
coverTapping or
tickingA A —BBBTiming
chain and
chain ten-
sioner
noiseTiming chain cracks
and wear
Timing chain tensioner
operationEM-48
EM-44
Front of
engineSqueak-
ing or fizz-
ingAB—B—CDrive belt
(Sticking
or slip-
ping)Drive belt deflection
EM-13
Creaking A B A B A BDrive belt
(Slipping)Idler pulley bearing
operation
Squall
CreakA B —BABWater
pump
noiseWater pump operationCO-20,
"WATER
PUMP"

OIL PAN AND OIL STRAINER
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OIL PAN AND OIL STRAINERP F P : 1111 0
Removal and InstallationEBS00KNE
REMOVAL
WARNING:
To avoid the danger of being scalded, do not drain the engine oil when the engine is hot.
1. Remove RH and LH undercovers.
2. Drain engine oil. Refer to LU-8, "
Changing Engine Oil" .
3. Remove oil pan (lower) with the following procedure:
a. Loosen mounting bolts in reverse order as shown in the figure.
1. Oil level gauge 2. Oil level gauge guide 3. O-ring
4. Oil pan (upper) 5. Cylinder block 6. O-ring
7. Oil filter 8. O-ring 9. Drain plug washer
10. Oil strainer 11. Drain plug 12. Oil pan (lower)
13. Rear plate cover
PBIC2177E
KBIA0096E

EM-26
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OIL PAN AND OIL STRAINER

b. Insert seal cutter (special service tool) between oil pan (upper)
and oil pan (lower).
CAUTION:
Be careful not to damage the mating surface.
c. Slide seal cutter by tapping on the side of the tool with a ham-
mer.
4. Remove oil strainer.
5. Remove oil pan (upper) with the following procedure:
a. Remove drive belt. Refer to EM-13, "
DRIVE BELTS" .
b. Remove A/C compressor with piping connected. And locate it aside temporarily with ropes or equivalent
not to disturb the following work. Refer to ATC-144, "
Removal and Installation of Compressor" .
c. Remove oil level gauge guide.
d. Remove exhaust front tube and its support. Refer to EX-2, "
EXHAUST SYSTEM" .
e. Set a suitable transmission jack under transaxle and hoist
engine with engine slinger, and then remove center member.
Refer to EM-78, "
ENGINE ASSEMBLY" .
f. Remove rear plate cover, and four transaxle joint bolts. Refer to MT-17, "
TRANSAXLE ASSEMBLY" (M/T
models) or AT- 4 1 3 , "
REMOVAL AND INSTALLATION" (A/T models).
g. Loosen bolts in reverse order as shown in the figure.
NOTE:
Disregard No.12 and 17 when loosening.
SEM365EA
KBIA2024J
PBIC0257E
SBIA0233E