2003 NISSAN X-TRAIL Electronic Repair Manual

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NISSAN X-TRAIL 2003 Electronic Repair Manual CYLINDER BLOCK
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9. Restart tightening of lower cylinder block bolts with the following
procedure.
NOTE:
Step “a ”and “b” have been completed before inst

CYLINDER BLOCK
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9. Restart tightening of lower cylinder block bolts with the following
procedure.
NOTE:
Step “a ”and “b” have been completed before installation of rear
oil seal (step 7).
a. Step “a” has been completed before installation of rear oil seal.
b. Step “b” has been completed before installation of rear oil seal.
c. Tighten M10 bolts to 60 to 65°(target: 60°) in order from 1to 10.
d. Tighten M8 ( in) bolts to 19.6 to 24.5 N·m (2.0 to 2.5 kg-m, 15 to
18 ft-lb) in order from 11 to 22.
CAUTION:
In step “c”, use an angle wrench (special service tool) or
protractor to check tightening angle. Do not make judgment
by visual inspection.
lAfter installing mounting bolts, make sure that crankshaft
can be rotated smoothly by hand.
lWipe off completely any protruding liquid gasket on front side
of engine.
lCheck crankshaft side clearance. Refer toEM-80, "CRANK-
SHAFT SIDE CLEARANCE".
10. Install the piston to the connecting rod.
a. Usingasnapringpliers,installthesnapringtothegroovesof
the piston rear side.
lInsert it fully into groove to install.
b. Install the piston to the connecting rod.
lUsing an industrial drier or similar tool, heat the piston until the piston pin can be pushed in by hand
without excess force [approx. 60 to 70 C°(140 to 158°F)]. From the front to the rear, insert the piston
pin into the piston and the connecting rod.
lAssemble so that the front mark on the piston crown and the
oil holes and the cylinder No. on the connecting rod are posi-
tioned as shown in the figure.
c. Install the snap rings to the front of the piston.
lAfter installing, check that the connecting rod moves
smoothly.
11. Using a piston ring expander, install the piston rings.
CAUTION:
Be careful not to damage the piston.
lPosition each ring with the gap as shown in the figure refer-
ring to the piston front mark.
lInstall the top ring and the second ring with the stamped sur-
face facing upward.
KBIA0063E
KBIA0065E
PBIC0099E
Stamped mark : 1E (top ring)
: 2A (second ring)
PBIC0100E

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NISSAN X-TRAIL 2003 Electronic Repair Manual EM-72
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12. Install the connecting rod bearings to the connecting rod and the
connecting rod cap.
lWhen installing the connecting rod bearings, apply engine oil
to the bearing su

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16. Install flywheel (M/T models) or drive plate (A/T models).
lInstall drive plate, reinforcement plate and pilot converter as
showninfigure.
l

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16. Install flywheel (M/T models) or drive plate (A/T models).
lInstall drive plate, reinforcement plate and pilot converter as
showninfigure.
lUsing drift of 33 mm (1.30 in) in diameter, push pilot converter
into the end of crankshaft.
17. Install knock sensor.
lMake sure that there is no foreign material on the cylinder
block mating surface and the back surface of the knock sen-
sor.
lInstall sensor with connector facing lower left by 45°as show.
lDo not tighten the mounting bolts while holding the connector.
lMake sure that the knock sensor does not interfere with other-
parts.
CAUTION:
If any impact by dropping is applied to the knock sensor,
replace it with new one.
18. Install crankshaft position (POS) sensor.
19. Install followings in reverse order of removal.
How to Select Piston and BearingEBS009R9
DESCRIPTION
*For the service parts, the grade for fitting cannot be selected between a piston pin and a connecting rod.
(Only 0 grade is available.) The information at the shipment from the plant is described as a reference.
lThe identification grade stamped on each part is the grade for the dimension measured in new condition.
This grade cannot apply to reused parts.
lFor reused or repaired parts, measure the dimension accurately. Determine the grade by comparing the
measurement with the values of each selection table.
lFor details of the measurement method of each part, the reuse standards and the selection method of the
selective fitting parts, refer to the text.
KBIA0075E
KBIA0069E
Selection points Selection parts Selection items Selection methods
Between cylinder block to
crankshaftMain bearingMain bearing grade (bearing
thickness)Determined by match of cylin-
der block bearing housing
grade (inner diameter of hous-
ing) and crankshaft journal
grade (outer diameter of jour-
nal)
Between crankshaft to connect-
ing rodConnecting rod bearingConnecting rod bearing grade
(bearing thickness)Combining service grades for
connecting rod big end inner
diameter and crankshaft pin
outer diameter determine con-
necting rod bearing selection.
Between cylinder block to pis-
tonPiston and piston pin assembly
Thepistonisavailabletogether
with piston pin as an assembly.Piston grade (piston outer
diameter)Piston grade = cylinder bore
grade (inner diameter of bore)
*Between piston to connecting
rod———

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NISSAN X-TRAIL 2003 Electronic Repair Manual EM-74
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HOW TO SELECT PISTON
When New Cylinder Block is Used:
lCheck the cylinder bore grade on rear left side of cylinder block, and select a piston of the same grade.
lIf there

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2. Apply pin diameter grade stamped on crankshaft front side to
the column in the “Connecting Rod Bearing Selection Table”.
3. Read the symb

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NISSAN X-TRAIL 2003 Electronic Repair Manual EM-76
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Connecting “Rod Bearing Selection Table”.
Connecting “Rod Bearing Grade Table”.
Under size Bearings Usage Guide
lWhen the specified oil clearance is not obtained

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Bearing under size table
Unit: mm (in)
CAUTION:
In grinding the crankshaft pin to use under size bearings, keep
the fillet R (All crankshaft pin

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NISSAN X-TRAIL 2003 Electronic Repair Manual EM-78
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Main Bearing Selection Table (No.1,3 and No.5 journals)
KBIA0149E

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