Nissan Altima L32. Manual - part 640

EM-96

< DISASSEMBLY AND ASSEMBLY >

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HOW TO SELECT PISTON AND BEARING

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".

SBIA0283E

AWBIA0017ZZ

HOW TO SELECT PISTON AND BEARING

EM-97

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

KBIA0149E

EM-98

< DISASSEMBLY AND ASSEMBLY >

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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) Refer to 

EM-99, "Standard and Limit"

.

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). 

KBIA0150E

                           Size U.S.

                        Thickness

                        0.25 (0.0098)

       2.106 - 2.114 (0.0829 - 0.0832)

KBIA0148E

SERVICE DATA AND SPECIFICATIONS (SDS)

EM-99

< SERVICE DATA AND SPECIFICATIONS (SDS) 

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SERVICE DATA AND SPECIFICATIONS (SDS)

SERVICE DATA AND SPECIFICATIONS (SDS)

Standard and Limit

INFOID:0000000004202137

GENERAL SPECIFICATIONS

DRIVE BELTS

INTAKE MANIFOLD AND EXHAUST MANIFOLD

Unit: mm. (in)

SPARK PLUG

Unit: mm. (in)

Cylinder arrangement

In-line 4

Displacement cm

3

 (in

3

)

2,488 (151.82)

Bore and stroke mm. (in)

89.0 x 100 (3.50 x 3.94)

Valve arrangement

DOHC

Firing order

1-3-4-2

Number of piston rings

Compression

2

Oil

1

Compression ratio

9.5:1

Compression pressure                                  
kPa (kg/cm

2

, psi) / 250 rpm

Standard

1,250 (12.8, 181.3)

Minimum

1,060 (10.8, 153.7)

Differential limit between cylinders

100 (1.0, 14)

Valve timing

Unit: degree

a

b

c

d

e

f

220

°

232

°

-12

°

64

°

10

°

30

°

PBIC0187E

Tension of drive belts

                         Auto adjustment by auto tensioner

Surface distortion

Description

                                Limit

Intake manifold adapter

0.1 (0.004)

Intake manifold 

0.1 (0.004)

Exhaust manifold

0.3 (0.012)

Make

NGK

Type

Standard

DILKAR6A-11

Gap (nominal)

1.1 (0.043)