Nissan Altima HL32 Hybrid. Manual - part 395

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HOW TO SELECT PISTON AND BEARING

Bearing Undersize Table

Unit: mm (in)

CAUTION:

In grinding the crankshaft pin to use undersize bearings, do

not damage the fillet R (All crankshaft pins).

HOW TO SELECT A MAIN BEARING

When New Cylinder Block and Crankshaft are Used:

1. "Main Bearing Selection Table" rows correspond to bearing

housing grade on rear left side of cylinder block.

• If there is a corrected stamp mark on the cylinder block, use it

as a correct reference.

2. Apply journal diameter grade (A) stamped on crankshaft front

side to column in "Main Bearing Selection Table".

• Pin diameter grade (B)

3. Find value at crossing of row and column in "Main Bearing Selection Table".

CAUTION:

• There are two main bearing selection tables. One is for odd-numbered journals (1, 3, and 5) and

the other is for even-numbered journals (2 and 4). Make certain to use the appropriate table. This

is due to differences in the specified clearances. 

4. Apply the symbol obtained to "Main Bearing Grade Table" to select.

NOTE:

• Service parts are available as a set of both upper and lower.

When Cylinder Block and Crankshaft are Reused:

1. Measure inner diameter of cylinder block main bearing housing and outer diameter of crankshaft journal.
2. Apply measurement in above step 1 to the "Main Bearing Selection Table".
3. Follow steps 3 and 4 in "When New Cylinder Block and Crankshaft are Used".

                            Size U.S.

                       Thickness

                        0.25 (0.0098)

       1.622 - 1.630 (0.0639 - 0.0642)

KBIA0148E

SBIA0283E

AWBIA0017ZZ

HOW TO SELECT PISTON AND BEARING

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Main Bearing Selection Table (No.1, 3, and No.5 journals)

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HOW TO SELECT PISTON AND BEARING

Main Bearing Selection Table (No.2,and 4 journals)

Main Bearing Grade Table (All Journals)

Unit: mm (in)

KBIA0150E

Grade number

Thickness 

Identification color

(UPR / LWR)

Remarks

0

1.973 - 1.976 (0.0777 - 0.0778)

Black

Grade and color are the same 
for upper and lower bearings.

1

1.976 - 1.979 (0.0778 - 0.0779)

Brown

2

1.979 - 1.982 (0.0779- 0.0780)

Green

3

1.982 - 1.985 (0.0780 - 0.0781)

Yellow

4

1.985 - 1.988 (0.0781 - 0.0783)

Blue

5

1.988 - 1.991 (0.0783 - 0.0784)

Pink

6

1.991 - 1.994 (0.0784 - 0.0785)

Purple

                     7

     1.994 - 1.997 (0.0785 - 0.0786)

                     White            

HOW TO SELECT PISTON AND BEARING

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Use Undersize Bearing Usage Guide

• Use undersize (U.S.) bearing when oil clearance with standard size main bearing is not within specification.

• When using undersize (U.S.) bearing, measure the bearing inner diameter with the bearing installed and

grind journal until oil clearance falls within specification.

Bearing Undersize Table

Unit: mm (in)

CAUTION:

Do not damage fillet R when grinding crankshaft journal in

order to use an undersize bearing (all journals). 

01

UPR

1.973 - 1.976 (0.0777 - 0.0778)

Black / Brown

Grade and color are different 
for upper and lower bearings.

LWR

1.976 - 1.979 (0.0778 - 0.0779)

12

UPR

1.976 - 1.979 (0.0778 - 0.0779)

Brown / Green

LWR

1.979 - 1.982 (0.0779 - 0.0780)

23

UPR

1.979 - 1.982 (0.0779 - 0.0780)

Green / Yellow

LWR

1.982 - 1.985 (0.0780 - 0.0781)

34

UPR

1.982 - 1.985 (0.0780 - 0.0781)

Yellow / Blue

LWR

1.985 - 1.988 (0.0781 - 0.0783)

45

UPR

1.985 - 1.988 (0.0781 - 0.0783)

Blue / Pink

LWR

1.988 - 1.991 (0.0783 - 0.0784)

56

UPR

1.988 - 1.991 (0.0783 - 0.0784)

Pink / Purple

LWR

1.991 - 1.994 (0.0784 - 0.0785)

67

UPR

1.991 - 1.994 (0.0784 - 0.0785)

Purple / White

LWR

1.994 - 1.997 (0.0785 - 0.0786)

                           Size U.S.

                        Thickness

                        0.25 (0.0098)

       2.106 - 2.114 (0.0829 - 0.0832)

KBIA0148E