Nissan X-Trail 32. Manual - part 1088

CYLINDER BLOCK

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• 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 piston from connecting rod with the following procedure: 

a.

Using snap ring pliers (A), remove snap ring.

b.

Heat piston to 60 to 70

°

C (140 to 158

°

F) with an industrial use

drier (A) or equivalent.

c.

Push out piston pin with stick (A) of outer diameter approxi-
mately 19 mm (0.75 in).

8.

Remove lower cylinder block mounting bolts.

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CYLINDER BLOCK

• Loosen them in reverse order as shown in the figure, and

remove them.

• Use TORX socket (size E14) for bolts No. 1 to 10.
• Before loosening lower cylinder block mounting bolts, mea-

sure crankshaft end play. Refer to 

EM-256, "Inspection"

.

9.

Remove lower cylinder block.
• Use a seal cutter [SST: KV10111100] or equivalent tool to cut liquid gasket for removal. 

CAUTION:

Be careful not to damage the mounting surface.

10. Remove crankshaft.

CAUTION:

• Be careful not damage or deform signal plate mounted on

crankshaft.

• When setting crankshaft 

 on a flat floor surface, use a

block of wood to avoid interference between signal plate
and the floor surface.

• Never remove signal plate unless it is necessary to do so.
NOTE:
When removing or installing signal plate 

, use TORX socket

(size T30).

11. Pull rear oil seal out from rear end of crankshaft.

NOTE:
When replacing rear oil seal without removing lower cylinder
block, use a screwdriver to pull it out from between crankshaft and cylinder block.

CAUTION:

Be careful not to damage crankshaft and cylinder block.

12. Remove main bearings and thrust bearings from cylinder block and lower cylinder block.

CAUTION:

Identify installation positions, and store them without mixing them up.

13. Remove oil jets 

 if necessary.

ASSEMBLY

CAUTION:

Do not reuse O-rings or washers.

1.

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

CAUTION:

Use a goggles to protect your eye.

: Engine front

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CYLINDER BLOCK

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2.

Install each plug to cylinder block as shown in the figure. 

• Apply liquid gasket to the thread of water drain plug 

. 

Use Genuine Liquid Gasket or equivalent.
NOTE:
Do not apply liquid gasket to the thread of plug 

.

CAUTION:

Do not reuse washers.

• Tighten each plug as specified below.

3.

Install oil jet.
• Insert oil jet dowel pin 

 into cylinder block dowel pin hole,

and tighten mounting bolts.

4.

Install main bearings and thrust bearings with the following procedure:

a.

Remove dust, dirt, and engine oil on the bearing mating surfaces of cylinder block and lower cylinder
block.

b.

Install thrust bearings to the both sides of the No. 3 journal hous-
ing 

 on cylinder block.

• Install thrust bearings 

 with the oil groove 

 facing crank-

shaft arm (outside). 

c.

Install the main bearings paying attention to the direction.
• 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 different specifications.

• Before installing main bearings, apply new engine oil to the

bearing surface (inside). Do not apply engine oil to the back
surface, but thoroughly clean it.

: Washer

: Engine front

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Part

Washer

Tightening torque

No

53.9 N·m (5.5 kg-m, 40 ft-lb)

Yes

9.8 N·m (1.0 kg-m, 87 in-lb)

: Engine front

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: Jounal other yhan No.3

: Lower cylinder block side

: Thrust bearing

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CYLINDER BLOCK

• When installing, align main bearing stopper 

 to the notch.

• Ensure the oil holes 

 on cylinder block and those on the corresponding bearing are aligned.

5.

Install signal plate to crankshaft if removed.

a.

Position crankshaft and signal plate using dowel pin, and tighten
mounting bolts.
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 plate), use M8 bolt [length 10 mm (0.39 in) or more] as a
substitute.

b.

Remove dowel pin.

CAUTION:

Be sure to remove dowel pin.

6.

Install crankshaft to cylinder block.
• While turning crankshaft by hand, check that it turns smoothly. 

7.

Install lower cylinder block with the following procedure:

a.

Apply liquid gasket with a tube presser (commercial service tool)
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.

: Signal plate

: Crank shaft

: Dowel pin (used to position the signal plate)

: Lower cylinder block

: Apply liquid gasket to an end 

: 6.5 mm (0.255 in)

:

φ

 4.5 mm (0.177 in)

: Engine front

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