Nissan Qashqai J11. Manual - part 132

HOW TO SELECT PISTON AND BEARING

EM-467

< UNIT DISASSEMBLY AND ASSEMBLY >

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C

D

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F

G

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Detail of the marking (1):
(1) : Line indicating the diameter category of the journal.
- identification by letters corresponding to the diameter of the journal
- the order of the marking letters goes from the bearing on the timing end to the bearing on the flywheel end,
(2) :Line indicating the diameter class of the crankpins,
(3), (4) : Last five numbers of the crankshaft part number,
(5): Line reserved for the factory. 

Table Of Journal Diameter Classes

Unit: mm (in)

WHEN CYLINDER BLOCK AND CRANKSHAFT ARE REUSED

1.

Measure the dimensions of the cylinder block main bearing housing inner diameter and crankshaft main
journal diameter individually. Refer to 

EM-459, "Inspection"

.

2.

Apply the measured dimension to “Main Bearing Selection Table”.

3.

Read the symbol at the cross point of selected row and column in “Main Bearing Selection Table”.

4.

Apply the symbol obtained from “Main Bearing Grade Table” to select main bearing.

MAIN BEARING SELECTION TABLE

B* = Blue (bearing shell colour mark)
N** = Black (bearing shell colour mark)
J*** = Yellow (bearing shell colour mark)

Table of distribution of upper journals 1, 2, 4 and 5

Journal class mark on the crankshaft

Journal diameter

A,B,C

 51.485 - 51.487 (2.0270)

D, E

51.488 - 51.489 (2.0271)

F, G, H

51.490 - 51.492 (2.0272)

K, L, M

51.495 - 51.497 (2.0274)

N, O

51.498 - 51.499 (2.0275)

P, Q, R

51.500 - 51.502 (2.0276)

S, T

 51.503 - 51.504 (2.0277)

U

 51.505 (2.0278)

Cylinder block bearing diameter class mark

A

B

C

E

H

J

K

L

M

P

S

T

U

Z

EM-468

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HOW TO SELECT PISTON AND BEARING

Table of the distribution of lower journals 1, 2, 4 and 5

B* = Blue (bearing shell colour mark)
N** = Black (bearing shell colour mark)
J*** = Yellow (bearing shell colour mark)

Crank
shaft 
jour-
nal di-
amet
er 
class 
mark

A

B*

B

B

C

N**

B

D

N

B

E

N

B

F

N

B

G

N

B

H

N

B

I

N

B

J

N

B

K

N

B

L

N

B

M

J***

N

B

N

J

N

O

J

N

P

J

N

Q

J

N

R

J

N

S

J

N

T

J

N

U

J

N

Cylinder block bearing diameter class mark

Cylinder block bearing diameter class mark

A

B

C

E

H

J

K

L

M

P

S

T

U

Z

HOW TO SELECT PISTON AND BEARING

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[R9M]

C

D

E

F

G

H

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K

L

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A

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Table of the distribution of upper journal 3

W* = White (bearing shell colour mark)
N** = Black (bearing shell colour mark)
J*** = Yellow (bearing shell colour mark)

Crank
shaft 
jour-
nal di-
amet
er 
class 
mark

A

N**

B*

B

N

B

C

N

B

D

N

B

E

N

B

F

N

B

G

N

B

H

J***

N

B

I

J

N

J

J

N

K

J

N

L

J

N

M

J

N

N

J

N

O

J

N

P

J

N

Q

J

N

R

J

N

S

J

T

J

U

J

Cylinder block bearing diameter class mark

Cylinder block bearing diameter class mark

A

B

C

E

H

J

K

L

M

P

S

T

U

Z

EM-470

< UNIT DISASSEMBLY AND ASSEMBLY >

[R9M]

HOW TO SELECT PISTON AND BEARING

Table of the distribution of lower journals 3

W* = White (bearing shell colour mark)
N** = Black (bearing shell colour mark)
J*** = Yellow (bearing shell colour mark)

Crank
shaft 
jour-
nal di-
amet
er 
class 
mark

A

N**

B

N

C

J***

N

D

J

N

E

J

N

F

J

N

G

J

N

H

J

N

I

J

N

J

J

N

K

J

N

L

J

N

M

W***

J

N

N

W

J

O

W

J

P

W

J

Q

W

J

R

W

J

S

W

J

T

W

J

U

W

J

Cylinder block bearing diameter class mark

Cylinder block bearing diameter class mark

A

B

C

E

H

J

K

L

M

P

S

T

U

Z