Nissan X-Trail 32. Instruction — part 1123

CYLINDER BLOCK

EM-389

< UNIT DISASSEMBLY AND ASSEMBLY >

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CYLINDER BLOCK

Exploded View

INFOID:0000000010784364

Centering dowel

Cylinder block

O-ring

Engine coolant temperature sensor

TDC hole plug

Oil level gauge

Oil level gauge guide

O-ring

Oil jet

Compression ring

Sealing ring

Scraper ring

Snap ring

Piston pin

Piston

Connecting rod

Connecting rod bearing shell

Connecting rod bolt

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EM-390

< UNIT DISASSEMBLY AND ASSEMBLY >

[R9M]

CYLINDER BLOCK

Disassembly and Assembly

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Disassembly

1.

Remove rear oil seal retainer. Refer to

EM-363, "REAR OIL SEAL : Removal and Installation"

.

2.

Remove oil pan (upper). Refer to

EM-380, "Exploded View"

.

3.

Remove oil pump related parts. Refer to

LU-44, "Exploded View"

.

4.

Remove piston and connecting rod assembly with the following procedure:
• Before removing piston and connecting rod assembly, check the connecting rod side clearance. Refer to

EM-401, "Inspection"

.

a.

Position crankshaft pin corresponding to connecting rod to be removed onto the bottom dead center.

b.

Remove connecting rod cap.
• Put a paint mark on cap to identify each cylinder.

c.

Using a hammer handle or similar tool, push piston and connect-
ing rod assembly out to the cylinder head side.

CAUTION:

• Be careful not to damage oil jets

, cylinder wall and

crankshaft pin, resulting from an interference of the con-
necting rod big end.

• Never disassemble oil jets.

5.

Remove connecting rod bearing shells.

CAUTION:

Crankshaft thrust washer

Crankshaft

Crankshaft seal on gearbox end

Crankshaft bearing shell

Crankshaft bearing cap

Crankshaft bearing cap bolt

Engine coolant temperature sensor har-
ness

Comply with the assembly procedure
when tightening. Refer to

EM-390, "Dis-

assembly and Assembly"

: N·m (kg-m, ft-lb)

: N·m (kg-m, in-lb)

: Always replace after every disassembly.

: Should be lubricated with oil.

: Sealing point

: Select with proper thickness.

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CYLINDER BLOCK

EM-391

< UNIT DISASSEMBLY AND ASSEMBLY >

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When removing them, note the installation position. Keep them in the correct.

6.

Remove piston rings from piston.
• Before removing piston rings, check the piston ring side clearance. Refer to

EM-401, "Inspection"

.

• Use a piston ring expander (commercial service tool) (A).

CAUTION:

• When removing piston rings, be careful not to damage

the piston.

• Be careful not to damage piston rings by expanding

them excessively.

7.

Remove the snap rings

using a screwdriver (A), and then

release the piston pin.

8.

Remove main bearing cap mounting bolts with the following procedure:
• Measure crankshaft end play before loosening main bearing cap mounting bolts. Refer to

EM-401,

"Inspection"

.

a.

NOTE:
Always mark the position of each crankshaft bearing shell using
an indelible marker pen, in relation to the crankshaft bearing
number

Remove:

• the crankshaft bearing cap bolts,
• the crankshaft bearing caps,
• the crankshaft,
• the crankshaft bearing shells.

NOTE:
Always mark the position of each crankshaft bearing shell using an
indelible marker pen, in relation to the crankshaft bearing number

9.

Remove the crankshaft thrust washer

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EM-392

< UNIT DISASSEMBLY AND ASSEMBLY >

[R9M]

CYLINDER BLOCK

10. Remove oil jets

following this procedure:

CAUTION:

Wear goggles with side protectors for this operation.

a.

Drill the oil jets using a [7 mm (0.3in)] diameter drill bit.
NOTE:
Do not take out the ball from the oil jet, otherwise swarf may
enter the lubrication circuit.
• Remove the spring tappet

and the springs

without taking

out the ball

.

• Remove any swarf present with a brush with non abrasive

bristles and a compressed air nozzle.

b.

Screw the tool [SST: — (Mot. 1485-01)]

into the drilled oil jets

using a [6 mm (0.2 in)] Allen key, which slides into the tool [SST:
——Mot. 1485-01)].

c.

Screw the tool [SST: — (Emb. 880)]

on the tool [SST: — (Mot.

1485-01)].

d.

Remove the oil jets.

e.

Fit a blanking plug whenever a oil jet is removed.

Assembly

1.

Fully air-blow engine coolant and engine oil passages in the cylinder block, cylinder bore and crankcase
to remove any foreign matter.

CAUTION:

Use a goggles to protect your eye.

2.

Install the new oil jet following procedure:

a.

Remove the blanking plugs.

b.

Use pressurized air and clean cloths to clean the oil circuit, the cylinders and the joint faces to ensure
there is no swarf present.

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