Nissan Teana J32. Manual - part 502

EM-132

< DISASSEMBLY AND ASSEMBLY >

HOW TO SELECT PISTON AND BEARING

• When using undersize (US) bearing, measure the connecting rod bearing inner diameter with bearing

installed, and grind crankshaft pin so that the connecting rod bearing oil clearance satisfies the standard. 

CAUTION:

In grinding crankshaft pin to use undersize bearings, keep the
fillet R (A) [1.5 - 1.7 mm (0.059 - 0.067 in)].

Main Bearing

INFOID:0000000003802299

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.

2.

“MAIN BEARING SELECTION TABLE” columns correspond to
journal diameter grade on front side of crankshaft.

3.

Select main bearing grade at the point where selected row and column meet in “MAIN BEARING SELEC-
TION TABLE”.

4.

Apply sign at crossing in above step 3 to “MAIN BEARING GRADE TABLE”.
NOTE:
• “MAIN BEARING GRADE TABLE” applies to all journals.
• Service parts is available as a set of both upper and lower.

WHEN CYLINDER BLOCK AND CRANKSHAFT ARE REUSED

1.

Measure cylinder block main bearing housing inner diameter and crankshaft main journal diameter. Refer
to 

EM-119, "Inspection"

.

2.

Correspond the measured dimension in “Cylinder block main bearing housing inner diameter” row of
“MAIN BEARING SELECTION TABLE”.

Bearing under-
size table

: Refer to 

EM-147, 

"Connecting Rod Bearing"

.

JPBIA0216ZZ

SEM756G

A

: Journal diameter grade No. 1

B

: Journal diameter grade No. 2

C

: Journal diameter grade No. 3

D

: Journal diameter grade No. 4

E

: Pin diameter grade No. 1

F

: Pin diameter grade No. 2

G

: Pin diameter grade No. 3

H

: Pin diameter grade No. 4

I

: Pin diameter grade No. 5

J

: Pin diameter grade No. 6

K

: Identification code

JPBIA0269ZZ

HOW TO SELECT PISTON AND BEARING

EM-133

< DISASSEMBLY AND ASSEMBLY >

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3.

Correspond the measured dimension in “Crankshaft main journal diameter” column of “MAIN BEARING
SELECTION TABLE”.

4.

Follow step 3 and later in “When New Cylinder Block and Crankshaft are Used”.

MAIN BEARING SELECTION TABLE

MAIN BEARING GRADE TABLE (ALL JOURNALS)

UNDERSIZE BEARING USAGE GUIDE

• When the specified main bearing oil clearance is not obtained with standard size main bearings, use under-

size (US) bearing.

• When using undersize (US) bearing, measure the main bearing inner diameter with bearing installed, and

grind main journal so that the main bearing oil clearance satisfies the standard.

CAUTION:

PBIC5332E

Main bearing grade table (All journals)

: Refer to 

EM-146, "Main Bearing"

.

EM-134

< DISASSEMBLY AND ASSEMBLY >

HOW TO SELECT PISTON AND BEARING

In grinding crankshaft main journal to use undersize bearings,
keep the fillet R (A) [1.5 - 1.7 mm (0.059 - 0.067 in)]. 

Bearing undersize 
table

: Refer to 

EM-146, 

"Main Bearing"

.

JPBIA0216ZZ

SERVICE DATA AND SPECIFICATIONS (SDS)

EM-135

< SERVICE DATA AND SPECIFICATIONS (SDS) 

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SERVICE DATA AND SPECIFICATIONS (SDS)

SERVICE DATA AND SPECIFICATIONS (SDS)

General Specification

INFOID:0000000003802300

GENERAL SPECIFICATIONS

Engine

VQ25DE

VQ35DE

Cylinder arrangement

V-6

Displacement

cm

3

 (cu in)

2,495 (152.24)

3,498 (213.45)

Bore and stroke

mm (in)

85.0 x 73.3

(3.346 x 2.886)

95.5 x 81.4

(3.760 x 3.205)

Valve arrangement

DOHC

Firing order

1-2-3-4-5-6

Number of piston rings

Compression

2

Oil

1

Number of main bearings

4

Compression ratio

9.8

10.3

Compression pressure

kPa (bar, kg/cm

2

, psi)/300 rpm

Standard

1,275 (12.8, 13.0, 185)

Minimum

981 (9.8, 10.0, 142)

Differential limit between cylinders

98 (1.0, 1.0, 14)

Cylinder number

Valve timing
(Valve timing control - “OFF”)

Unit: degree

a

b

c

d

e

f

VQ25DE

240

244

−

6

58

8

52

VQ35DE

240

260

−

10

70

10

50

SEM713A

PBIC0187E