2003 NISSAN X-TRAIL Service Repair Manual

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Page 137 of 4179

NISSAN X-TRAIL 2003 Service Repair Manual CYLINDER BLOCK
EM-85
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NOTE:
The flywheel, two block construction, allows movement in response to transaxle side pressure, or when
twisted in its rotational direction. T

Page 138 of 4179

NISSAN X-TRAIL 2003 Service Repair Manual EM-86
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CYLINDER BLOCK

a. Using snap ring pliers, remove snap ring.
b. Heat piston to 60 to 70°C (140 to 158°F) with a industrial use
drier or equivalent.
c. Push out piston pin with stick of o

Page 139 of 4179

NISSAN X-TRAIL 2003 Service Repair Manual CYLINDER BLOCK
EM-87
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CAUTION:
Be careful not damage or deform signal plate mounted on
crankshaft.
When setting crankshaft on a flat floor surface, use a
block of woo

Page 140 of 4179

NISSAN X-TRAIL 2003 Service Repair Manual EM-88
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CYLINDER BLOCK

Main bearing with an oil hole and groove goes on cylinder
block. The one without them goes on lower cylinder block.
Only main bearing (on cylinder block) for No. 3 journa

EM-88
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CYLINDER BLOCK

Main bearing with an oil hole and groove goes on cylinder
block. The one without them goes on lower cylinder block.
Only main bearing (on cylinder block) for No. 3 journal has dif-
ferent specifications.
Before installing main bearings, apply new engine oil to the
bearing surface (inside). Do not apply new engine oil to the
back surface, but thoroughly clean it.
When installing, align main bearing stopper to the notch.
Ensure the oil holes on cylinder block and those on the corre-
sponding bearing are aligned.
4. Install signal plate to crankshaft if removed.
a. Position crankshaft and signal plate using a dowel pin, and
tighten mounting bolts.
b. Remove dowel pin.
CAUTION:
Be sure to remove dowel pin.
NOTE:
Dowel pin of crankshaft and signal plate is provided as a set for
each. If dowel pin is not available (when reusing crankshaft and
signal), use M6 bolt [length 10 mm (0.39 in) or more] as a substi-
tute.
5. Install crankshaft to cylinder block.
While turning crankshaft by hand, make sure that it turns smoothly.
6. Install lower cylinder block with the following procedure:
a. Apply liquid gasket with a tube presser (special service tool:
WS39930000) to lower cylinder block as shown in the figure.
Use Genuine Liquid Gasket or equivalent.
CAUTION:
After liquid gasket is applied, rear oil seal installation must
be finished within 5 minutes. Therefore, the following pro-
cedure must be performed quickly.
NOTE:
Lower cylinder block cannot be replaced as a single part,
because it is machined together with cylinder block.
b. Tighten lower cylinder block mounting bolts with the following
procedure:
i. Apply new engine oil to threads and seat surfaces of mounting bolts.
ii. Tighten M8 bolts in numerical order from No. 11 to 22 in the fig-
ure.
NOTE:
There are more processes to complete the tightening of mount-
ing bolts. However stop procedure here to install rear oil seal.
c. Install rear oil seal. Refer to EM-65, "
Removal and Installation of Rear Oil Seal" .
d. Restart tightening of lower cylinder block mounting bolts with the following procedure:
PBIC2193E
: 25.1 N·m (2.6 kg-m, 19 ft-lb)
SBIA0278E
SBIA0279E
KBIA0063E

Page 141 of 4179

NISSAN X-TRAIL 2003 Service Repair Manual CYLINDER BLOCK
EM-89
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i. Tighten M10 bolts in numerical order from No. 1 to 10.
ii. Turn M10 bolts 60 degrees clockwise (angle tightening) in order
from No. 1 to 10 in

Page 142 of 4179

NISSAN X-TRAIL 2003 Service Repair Manual EM-90
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CYLINDER BLOCK

Position each ring with the gap as shown in the figure refer-
ring to the piston front mark.
Install second ring with the stamped surface facing upward.
NOTE:
If there is

Page 143 of 4179

NISSAN X-TRAIL 2003 Service Repair Manual CYLINDER BLOCK
EM-91
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a. Apply new engine oil to the threads and seats of connecting rod bolts.
b. Tighten bolts.
c. Then turn all bolts 90 degrees clockwise (Angle ti

Page 144 of 4179

NISSAN X-TRAIL 2003 Service Repair Manual EM-92
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CYLINDER BLOCK

How to Select Piston and Bearing EBS00KNV
DESCRIPTION
*For the service parts, the grade for fitting cannot be selected between piston pin and connecting rod. (Only grade �

EM-92
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CYLINDER BLOCK

How to Select Piston and Bearing EBS00KNV
DESCRIPTION
*For the service parts, the grade for fitting cannot be selected between piston pin and connecting rod. (Only grade “0” is available.) The
information at the shipment from the plant is described as a reference.
The identification grade stamped on each part is the grade for the dimension measured in new condition.
This grade cannot apply to reused parts.
For reused or repaired parts, measure the dimension accurately. Determine the grade by comparing the
measurement with the values of each selection table.
For details of the measurement method of each part, the reuse standards and the selection method of the
selective fitting parts, refer to the text.
HOW TO SELECT PISTON
When New Cylinder Block is Used
Check the cylinder bore grade on rear left side of cylinder block,
and select piston of the same grade.
If there is a corrected stamp mark on the cylinder block, use it as
a correct reference.
When Cylinder Block is Reused
1. Measure the cylinder bore inner diameter. Refer to EM-103, "Cylinder Bore Inner Diameter" .
2. Determine the bore grade by comparing the measurement with the values under the cylinder bore inner
diameter of the “Piston Selection Table”.
3. Select piston of the same grade.
Piston Selection Table
Unit: mm (in)
NOTE:
There is no piston grade “1”.
Piston is available together with piston pin as an assembly.
Selection points Selection parts Selection items Selection methods
Between cylinder block and
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 and con-
necting rodConnecting rod bearingConnecting rod bearing grade
(bearing thickness)Combining service grades for
connecting rod big end diame-
ter and crankshaft pin outer
diameter determine connecting
rod bearing selection.
Between cylinder block and pis-
tonPiston and piston pin assembly
(piston is available together
with piston pin as an assembly.)Piston grade (piston outer
diameter)Piston grade = cylinder bore
grade (inner diameter of bore)
Between piston and connecting
rod
*———
SBIA0283E
Grade number (Mark) 2 (or no mark) 3
Cylinder bore Inner diameter 89.010 - 89.020 (3.5043 - 3.5047) 89.020 - 89.030 (3.5047 - 3.5051)
Piston skirt diameter 88.990 - 89.000 (3.5035 - 3.5039) 89.000 - 89.010 (3.5039 - 3.5043)

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