Nissan Qashqai J11. Manual - part 39

CYLINDER BLOCK

EM-95

< UNIT DISASSEMBLY AND ASSEMBLY >

[HRA2DDT]

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

8.

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

EM-102, "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.

9.

Remove piston from connecting rod.
• Remove snap ring (1) using a screwdriver (2) placed in the

piston groove (3).

• Release the piston pin.

CAUTION:

• Be careful not to damage the piston and connecting rod.
• Identify installation positions, and store them without

mixing them up.

10. Remove the main bearing cap in the following procedure.

• Measure crankshaft end play before loosening main bearing cap bolts. Refer to 

EM-102, "Inspection"

.

a.

Loosen and remove bolts in several steps in reverse of the
numerical order as shown in the figure.

b.

Remove the main bearing cap from the cylinder block while tapping lightly with a plastic hammer.

11. Remove crankshaft.

CAUTION:

• When setting crankshaft on a flat floor surface, use a block of wood to avoid interference

between signal plate and the floor surface.

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

13. Remove main bearings and thrust bearings from cylinder block and main bearing cap.

CAUTION:

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

14. Remove oil jets.

CAUTION:

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

ASSEMBLY

1.

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

PBIC3233J

E1BIA1104ZZ

: Engine front

JPBIA4203ZZ

EM-96

< UNIT DISASSEMBLY AND ASSEMBLY >

[HRA2DDT]

CYLINDER BLOCK

CAUTION:

Use a goggles to protect your eye.

2.

Install oil jets.

3.

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.

b.

Install thrust bearings to the both sides of the No. 3 journal hous-
ing (B) on cylinder block.

• Install thrust bearings with the oil groove (A) facing crankshaft

arm (outside). 

c.

Install the main bearings (1) paying attention to the direction.
• Install the one with oil holes (A) onto cylinder block and the

one without oil holes onto main bearing cap.

• 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.

• Ensure the oil holes on cylinder block and those on the corre-

sponding bearing are aligned.

• Install the main bearing in the position as shown in the figure.

NOTE:
Install the main bearing in the center position with the following
dimension. For service operation, the center position can be
checked visually.

CAUTION:

Dimension L1 of journal No. 3 is the distance from the housing base end surface (bulk) (it is not
the distance from the thrust bearing mounting end surface).

4.

Install crankshaft to cylinder block.

: 10.0 N·m (1.0 kg-m, 7 ft-lb)

: Engine front

PBIC3258J

PBIC3746E

1

: Cylinder block

2

: Main bearing (upper)

3

: Main bearing (lower)

4

: Main bearing cap

: Engine front 

PBIC3747E

Journal position

No. 1

No. 2

No. 3

No. 4

No. 5

L1 [Unit: mm (in)]

1.65 - 2.05 

1.25 - 1.65

2.30 - 2.70

1.25 - 1.65

1.60 - 2.00

(0.064 - 0.080)

(0.049 - 0.064)

(0.090 - 0.106)

(0.049 - 0.064)

(0.062 - 0.078)

L2 [Unit: mm (in)]

1.30 - 1.70

1.30 - 1.70

2.30 -2.70

1.30 - 1.70

1.30 - 1.70

(0.051 - 0.066)

(0.051 - 0.066)

(0.090 - 0.106)

(0.051 - 0.066)

(0.051 - 0.066)

CYLINDER BLOCK

EM-97

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• While turning crankshaft by hand, check that it turns smoothly. 

CAUTION:

Never install rear oil seal yet.

5.

Install main bearing caps.
• Install the main bearing cap while referring to the front mark

(B) and the journal number stamp (A).

NOTE:
Main bearing cap cannot be replaced as a single parts,
because it is machined together with cylinder block.

6.

Tighten main bearing cap bolts in numerical order as shown in
the figure with the following steps.

a.

Apply new engine oil to threads and seat surfaces of the mounting bolts.

b.

Tighten main bearing cap bolts.

c.

Turn main bearing cap bolts 60 degrees clockwise (angle tightening) in numerical order as shown in the
figure.

CAUTION:

Check and confirm the tightening angle by using the angle
wrench [SST: KV10112100] (A) or protractor. Avoid judg-
ment by visual inspection without the tool. 

• After installing the mounting bolts, check that crankshaft can be rotated smoothly by hand.
• Check crankshaft end play. Refer to 

EM-102, "Inspection"

.

7.

Install piston to connecting rod with the following procedure: 

: Engine front

JPBIA4204ZZ

: Engine front

JPBIA4203ZZ

: 32.4 N·m (3.3 kg-m, 24 ft-lb)

PBIC3750E

EM-98

< UNIT DISASSEMBLY AND ASSEMBLY >

[HRA2DDT]

CYLINDER BLOCK

a.

Set so that the front mark (A) on the piston head is align with
connecting rod mark as shown in the figure.

b.

Install piston pin.
• Insert piston pin through piston.

NOTE:
Check that piston pin slide and can be rotate easily when install.

•  Install piston snap ring (1) using screwdriver.

NOTE:
Position end gap of snap ring (2) opposite to piston groove (3).

• After finishing work, check that the piston (4) moves freely.

8.

Using a piston ring expander (commercial service tool), install piston rings. 

CAUTION:

• Be careful not to damage piston.
• Be careful not to damage piston rings by expanding them excessively.
• Position top ring and second with their end gap placed as

shown in the figure referring to the piston front mark (A).
NOTE:
Install top ring and second ring with the stamped mark facing
upward

E1BIA1105ZZ

E1BIA1106ZZ

Stamped mark:

Top ring

: GOE TOP

Second ring

: GOE 5 TOP

E1BIA1107ZZ