Nissan Murano Z51 (2008 year). Manual - part 179

CYLINDER BLOCK

EM-129

< DISASSEMBLY AND ASSEMBLY >

C

D

E

F

G

H

I

J

K

L

M

A

EM

N

P

O

• Measure the inner diameter of connecting rod big end with an

inside micrometer.

• If out of the standard, replace connecting rod assembly.

CONNECTING ROD BUSHING OIL CLEARANCE

Connecting Rod Bushing Inner Diameter

Measure the inner diameter of connecting rod bushing with an inside
micrometer (A).

Piston Pin Outer Diameter

Measure the outer diameter of piston pin with a micrometer (A).

Connecting Rod Bushing Oil Clearance

(Connecting rod bushing oil clearance) = (Connecting rod bushing inner diameter) – (Piston pin outer diame-
ter)

• If the calculated value exceeds the limit, replace connecting rod assembly and/or piston and piston pin

assembly.

• If replacing piston and piston pin assembly, refer to 

EM-136, "Description"

.

• If replacing connecting rod assembly, refer to 

EM-137,

"Connecting Rod Bearing"

 to select the connecting rod bearing.

1

: Connecting rod

Standard

: Refer to 

EM-146, "Cylinder Block"

.

JPBIA0222ZZ

Standard

: Refer to 

EM-146, "Cylinder Block"

.

JPBIA0223ZZ

Standard

: Refer to 

EM-146, "Cylinder Block"

.

JPBIA0218ZZ

Standard and limit

: Refer to 

EM-146, "Cylinder Block"

.

A

:  Sample  codes

B

: Bearing stopper groove

C

: Small-end diameter grade

D

: Standard stamp

E

: Weight grade

F

: Cylinder No.

G

: Management code

JPBIA0208ZZ

Revision: 2008 October

2009 Murano

EM-130

< DISASSEMBLY AND ASSEMBLY >

CYLINDER BLOCK

Factory installed parts grading:

• Service parts apply only to grade “0”.

Unit: mm (in)

*: After installing in connecting rod

CYLINDER BLOCK DISTORTION

• Using a scraper, remove gasket on the cylinder block surface, and also remove engine oil, scale, carbon, or

other contamination. 

CAUTION:

Be careful not to allow gasket flakes to enter engine oil or engine coolant passages.

• Measure the distortion on the cylinder block upper face at some

different points in six directions (C), (D), (E), (F), (G), and (H) with a
straightedge (A) and a feeler gauge (B).

• If it exceeds the limit, replace cylinder block.

MAIN BEARING HOUSING INNER DIAMETER

• Install main bearing caps and main bearing beam without installing main bearings, and tighten main bearing

cap bolts to the specified torque. Refer to 

EM-118, "Disassembly and Assembly"

 for the tightening proce-

dure.

• Measure the inner diameter of main bearing housing with a bore

gauge.

• If out of the standard, replace cylinder block (1) and main bearing

caps (2) as assembly.
NOTE:
Cylinder block cannot be replaced as a single part, because it is
machined together with main bearing caps.

H

: Front mark

I

: Management code

A

: Piston grade number

B

:  Front  mark

C

: Piston pin grade number

D

: Identification code

JPBIA2199ZZ

Grade

0

1

Connecting rod bushing inner diameter *

22.000 - 22.006

(0.8661 - 0.8664)

22.006 - 22.012

(0.8664 - 0.8666)

Piston pin hole diameter

21.993 - 21.999

(0.8659 - 0.8661)

21.999 - 22. 005

(0.8661 - 0.8663)

Piston pin outer diameter

21.989 - 21.995

(0.8657 - 0.8659)

21.995 - 22.001

(0.8659 - 0.8662)

Limit

: Refer to 

EM-146, "Cylinder Block"

.

JPBIA0224ZZ

Standard

: Refer to 

EM-146, "Cylinder Block"

.

JPBIA0225ZZ

Revision: 2008 October

2009 Murano

CYLINDER BLOCK

EM-131

< DISASSEMBLY AND ASSEMBLY >

C

D

E

F

G

H

I

J

K

L

M

A

EM

N

P

O

PISTON TO CYLINDER BORE CLEARANCE

Cylinder Bore inner Diameter 

• Using a bore gauge, measure cylinder bore for wear, out-of-round

and taper at six different points on each cylinder. [(A) and (B) direc-
tions at (C), (D) and (E)] is in longitudinal direction of engine.

• If the measured value exceeds the limit, or if there are scratches

and/or seizure on the cylinder inner wall, hone or rebore the inner
wall. 

• Oversize piston is provided. When using oversize piston, rebore

cylinder so that the clearance of the piston to cylinder bore satis-
fies the standard.

CAUTION:

When using oversize piston, use oversize pistons for all cylin-
ders with oversize piston rings.

Piston Skirt Diameter

Measure the outer diameter of piston skirt with a micrometer (A).

Piston-to-Cylinder Bore Clearance

Calculate by piston skirt diameter and cylinder bore inner diameter
[direction (B), position (D)].

(Clearance) = (Cylinder bore inner diameter) – (Piston skirt diame-
ter).

• If the calculated value exceeds the limit, replace piston and piston pin assembly. Refer to 

EM-136, "Piston"

.

Reboring Cylinder Bore

1.

Cylinder bore size is determined by adding piston to cylinder bore clearance to piston skirt diameter.

f

: 10 mm (0.39 in)

g

: 60 mm (2.36 in)

h

: 120 mm (4.72 in)

Standard and limit

: Refer to 

EM-146, "Cylinder Block"

.

JPBIA0226ZZ

Oversize (O/S)

: 0.2 mm (0.008 in)

SEM843E

Measure point 

: Refer to 

EM-146, "Cylinder Block"

.

Standard

JPBIA0227ZZ

A

:  Direction  A

C

: Position C

E

: Position E

f

: 10 mm (0.39 in)

g

: 60 mm (2.36 in)

h

: 120 mm (4.72 in)

Standard and limit

: Refer to 

EM-146, "Cylinder Block"

.

JPBIA0226ZZ

Revision: 2008 October

2009 Murano

EM-132

< DISASSEMBLY AND ASSEMBLY >

CYLINDER BLOCK

2.

Install main bearing caps and main bearing beam, and tighten to the specified torque. Otherwise, cylinder
bores may be distorted in final assembly.

3.

Cut cylinder bores.
NOTE:
• When any cylinder needs boring, all other cylinders must also be bored.
• Do not cut too much out of cylinder bore at a time. Cut only 0.05 mm (0.0020 in) or so in diameter at a

time.

4.

Hone cylinders to obtain the specified piston to cylinder bore clearance.

5.

Measure finished cylinder bore for the out-of-round and taper.
NOTE:
Measurement should be done after cylinder bore cools down.

CRANKSHAFT MAIN JOURNAL DIAMETER

• Measure the outer diameter of crankshaft main journals with a micrometer.

• If out of the standard, measure the main bearing oil clearance. Then use undersize bearing. Refer to 

EM-

138, "Main Bearing"

.

CRANKSHAFT PIN JOURNAL DIAMETER

• Measure the outer diameter of crankshaft pin journal with a

micrometer (A).

• If out of the standard, measure the connecting rod bearing oil

clearance. Then use undersize bearing. Refer to 

EM-137,

"Connecting Rod Bearing"

.

CRANKSHAFT OUT-OF-ROUND AND TAPER

• Measure the dimensions at four different points as shown in the

figure on each main journal and pin journal with a micrometer. 

• Out-of-round is indicated by the difference in the dimensions

between (d) and (c) at (a) and (b).

• Taper is indicated by the difference in the dimensions between.

• If the measured value exceeds the limit, correct or replace crank-

shaft.

• If corrected, measure the bearing oil clearance of the corrected

main journal and/or pin journal. Then select the main bearing and/
or connecting rod bearing. Refer to 

EM-138, "Main Bearing"

 and/

or 

EM-137, "Connecting Rod Bearing"

.

CRANKSHAFT RUNOUT 

• Place V-block on precise flat table, and support the journals on the both end of crankshaft.

Rebored size calculation: D = A + B – C

where,

A: Piston skirt diameter as measured

B: Piston to cylinder bore clearance (standard value)

C: Honing allowance 0.02 mm (0.0008 in)

D: Bored diameter

Standard

: Refer to 

EM-146, "Cylinder Block"

.

Standard

: Refer to 

EM-146, "Cylinder Block"

.

JPBIA0228ZZ

Limit

: Refer to 

EM-146, "Cylinder Block"

.

JPBIA0229ZZ

Revision: 2008 October

2009 Murano

CYLINDER BLOCK

EM-133

< DISASSEMBLY AND ASSEMBLY >

C

D

E

F

G

H

I

J

K

L

M

A

EM

N

P

O

• Place a dial indicator straight up on the No. 3 journal.
• While rotating crankshaft, read the movement of the pointer on a

dial indicator. (Total indicator reading)

• If it exceeds the limit, replace crankshaft.

CONNECTING ROD BEARING OIL CLEARANCE

Method by Calculation

• Install connecting rod bearings (1) to connecting rod (2) and con-

necting rod cap, and tighten connecting rod bolts to the specified
torque. Refer to 

EM-118, "Disassembly and Assembly"

 for the

tightening procedure.

• Measure the inner diameter of connecting rod bearing with an

inside micrometer.

(Oil clearance) = (Connecting rod bearing inner diameter) – (Crank-
shaft pin journal diameter)

• If the calculated value exceeds the limit, select proper connecting

rod bearing according to connecting rod big end diameter and crankshaft pin journal diameter to obtain the
specified bearing oil clearance. Refer to 

EM-137, "Connecting Rod Bearing"

.

Method of Using Plastigage

• Remove oil and dust on crankshaft pin journal and the surfaces of each bearing completely. 
• Cut a plastigage slightly shorter than the bearing width, and place it in crankshaft axial direction, avoiding oil

holes.

• Install connecting rod bearings to connecting rod and connecting rod bearing cap, and tighten connecting

rod bolts to the specified torque. Refer to 

EM-118, "Disassembly and Assembly"

 for the tightening proce-

dure.

CAUTION:

Never rotate crankshaft.

• Remove connecting rod bearing cap and bearings, and using the

scale on the plastigage bag, measure the plastigage width.
NOTE:
The procedure when the measured value exceeds the limit is
same as that described in the “Method by Calculation”.

MAIN BEARING OIL CLEARANCE

Method by Calculation

Standard and limit

: Refer to 

EM-146, "Cylinder Block"

.

SEM346D

Standard and limit

: Refer to 

EM-150, 

"Connecting Rod Bearing"

.

JPBIA0230ZZ

JPBIA0231ZZ

Revision: 2008 October

2009 Murano

EM-134

< DISASSEMBLY AND ASSEMBLY >

CYLINDER BLOCK

• Install main bearings (3) to cylinder block (1) and main bearing

caps (2), and main bearing cap bolts with main bearing beam to
the specified torque. Refer to 

EM-118, "Disassembly and Assem-

bly"

 for the tightening procedure.

• Measure the inner diameter of main bearing with a bore gauge.
(Oil clearance) = (Main bearing inner diameter) – (Crankshaft main
journal diameter)

• If the calculated value exceeds the limit, select proper main bear-

ing according to main bearing inner diameter and crankshaft main
journal diameter to obtain the specified bearing oil clearance.
Refer to 

EM-138, "Main Bearing"

.

Method of Using Plastigage

• Remove engine oil and dust on crankshaft journal and the surfaces of each bearing completely. 
• Cut a plastigage slightly shorter than the bearing width, and place it in crankshaft axial direction, avoiding oil

holes.

• Install main bearing to cylinder block and main bearing caps, and tighten main bearing cap bolts with main

bearing beam to the specified torque. Refer to 

EM-118, "Disassembly and Assembly"

 for the tightening pro-

cedure.

CAUTION:

Never rotate crankshaft.

• Remove main bearing caps and bearings, and using the scale on

the plastigage bag, measure the plastigage width. 
NOTE:
The procedure when the measured value exceeds the limit is
same as that described in the “Method by Calculation”.

MAIN BEARING CRUSH HEIGHT

• When main bearing cap is removed after being tightened to the

specified torque with main bearings (1) installed, the tip end of
bearing must protrude. Refer to 

EM-118, "Disassembly and

Assembly"

 for the tightening procedure.

• If the standard is not met, replace main bearings.

CONNECTING ROD BEARING CRUSH HEIGHT

• When connecting rod bearing cap is removed after being tightened

to the specified torque with connecting rod bearings (1) installed,
the tip end of bearing must protrude. Refer to 

EM-118, "Disassem-

bly and Assembly"

 for the tightening procedure.

• If the standard is not met, replace connecting rod bearings.

Standard and limit

: Refer to 

EM-149, "Main Bearing"

.

JPBIA0232ZZ

JPBIA0231ZZ

A

: Crush height

Standard

: There must be crush height.

JPBIA0233ZZ

A

: Crush height

Standard

: There must be crush height.

JPBIA0233ZZ

Revision: 2008 October

2009 Murano

CYLINDER BLOCK

EM-135

< DISASSEMBLY AND ASSEMBLY >

C

D

E

F

G

H

I

J

K

L

M

A

EM

N

P

O

MAIN BEARING CAP BOLT OUTER DIAMETER

• Measure the outer diameters (c), (d) at two positions as shown in

the figure.

• If reduction appears in (a) range, regard it (c).

• If it exceeds the limit (large difference in dimensions), replace main

bearing cap bolt with new one.

CONNECTING ROD BOLT OUTER DIAMETER

• Measure the outer diameter (d) at position shown in the figure.
• If the reduction appears in a position other than (d), regard it as (d).

• When (d) exceeds the limit (when it becomes thinner), replace

connecting rod bolt with new one.

DRIVE PLATE

• Check drive plate and signal plate for deformation or damage.

CAUTION:

• Never disassemble drive plate.
• Never place drive plate with signal plate facing down.
• When handling signal plate, take care not to damage or

scratch it. 

• Handle signal plate in a manner that prevents it from becom-

ing magnetized.

• If anything is found, replace drive plate.

OIL JET

• Check nozzle for deformation and damage.
• Blow compressed air from nozzle, and check for clogs.
• If it is not satisfied, clean or replace oil jet.

OIL JET RELIEF VALVE

• Using a clean plastic stick, press check valve in oil jet relief valve.

Check that valve moves smoothly with proper reaction force.

• If it is not satisfied, replace oil jet relief valve.

a

: 20 mm (0.79 in)

b

: 30 mm (1.18 in)

e

: 10 mm (0.39 in)

Limit [(d) – (c)]

: 0.11 mm (0.0043 in)

JPBIA0234ZZ

Standard 

: 7.90 - 8.00 mm (0.3110 - 0.3150 in)

Limit

: 7.75 mm (0.3051 in)

PBIC0912E

JPBIA0192ZZ

EMU0468D

Revision: 2008 October

2009 Murano

EM-136

< DISASSEMBLY AND ASSEMBLY >

HOW TO SELECT PISTON AND BEARING

HOW TO SELECT PISTON AND BEARING

Description

INFOID:0000000003304164

 *: For the service parts, the grade for fitting cannot be selected between piston pin and connecting rod. (Only “0” grade is available.) The
information at the shipment from the plant is described as a reference.

• The identification grade stamped on each part is the grade for the dimension measured in new condition.

This grade cannot apply to reused parts.

• For reused or repaired parts, measure the dimension accurately. Determine the grade by comparing the

measurement with the values of each selection table.

• For details of the measurement method of each part, the reuse standards and the selection method of the

selective fitting parts, refer to the text.

Piston

INFOID:0000000003304165

WHEN NEW CYLINDER BLOCK IS USED

Check the cylinder bore grade (“1”, “2” or “3”) on rear side of cylinder
block, and select piston of the same grade.
NOTE:
Piston is available with piston pin as a set for the service part. (Only
“0” grade piston pin is available.)

WHEN NEW CYLINDER BLOCK IS REUSED

1.

Measure the cylinder bore inner diameter. Refer to 

EM-126, "Inspection"

.

2.

Determine the bore grade by comparing the measurement with the values under the cylinder bore inner
diameter of the “PISTON SELECTION TABLE”.

Selection points

Selection parts

Selection items

Selection methods

Between cylinder block and 
crankshaft

Main bearing

Main bearing grade
(bearing thickness)

Determined by match of cylin-
der block bearing housing 
grade (inner diameter of hous-
ing) and crankshaft journal 
grade (outer diameter of jour-
nal)

Between crankshaft and con-
necting rod

Connecting rod bearing

Connecting rod bearing grade 
(bearing thickness)

Combining service grades for 
connecting rod big end diame-
ter and crankshaft pin outer di-
ameter determine connecting 
rod bearing selection.

Between cylinder block and pis-
ton

Piston and piston pin assembly
(Piston is available together 
with piston pin as assembly.)

Piston grade
(piston skirt diameter)

Piston grade = cylinder bore 
grade (inner diameter of bore)

Between piston and connecting 
rod*

—

—

—

SEM756G

Revision: 2008 October

2009 Murano

HOW TO SELECT PISTON AND BEARING

EM-137

< DISASSEMBLY AND ASSEMBLY >

C

D

E

F

G

H

I

J

K

L

M

A

EM

N

P

O

3.

Select piston of the same grade.

PISTON SELECTION TABLE

Unit: mm (in)

NOTE:
• Piston is available together with piston pin as assembly.
• Piston pin (piston pin hole) grade is provided only for the parts installed at the plant. For service parts, no pis-

ton pin grades can be selected. (Only “0” grade is available.)

• No second grade mark is available on piston.

Connecting Rod Bearing

INFOID:0000000003304166

WHEN NEW CONNECTING ROD AND CRANKSHAFT ARE USED

• Check pin diameter grade (“0”, “1” or “2”) on front of crankshaft,

and select connecting rod bearing of the same grade. 

NOTE:
There is no grading for connecting rod big end diameter.

WHEN CONNECTING ROD AND CRANKSHAFT ARE REUSED

1.

Measure the connecting rod big end diameter. Refer to 

EM-126, "Inspection"

.

2.

Check that the connecting rod big end diameter is within the standard value.

3.

Measure the crankshaft pin journal diameter. Refer to 

EM-126, "Inspection"

.

4.

Determine the grade of crankshaft pin diameter grade by corresponding to the measured dimension in
“Crankshaft pin journal diameter” column of “CONNECTING ROD BEARING SELECTION TABLE”.

5.

Select connecting rod bearing of the same grade.

CONNECTING ROD BEARING SELECTION TABLE

Unit: mm (in)

A

: Piston grade number

B

: Front mark

C

: Piston pin grade number

D

: Identification code

JPBIA2199ZZ

Grade

1

2

3

Cylinder bore inner diameter

95.500 - 95.510

(3.7598 - 3.7602)

95.510 - 95.520

(3.7602 - 3.7606)

95.520 - 95.530

(3.7606 - 3.7610)

Piston skirt diameter

95.480 - 95.490

(3.7590 - 3.7594)

95.490 - 95.500

(3.7594 - 3.7598)

95.500 - 95.510

(3.7598 - 3.7602)

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

JPBIA0269ZZ

Connecting rod big end diameter

55.000 - 55.013 (2.1654 - 2.1659)

Revision: 2008 October

2009 Murano

EM-138

< DISASSEMBLY AND ASSEMBLY >

HOW TO SELECT PISTON AND BEARING

Unit: mm (in)

CONNECTING ROD BEARING GRADE TABLE

UNDERSIZE BEARING USAGE GUIDE

• When the specified connecting rod bearing oil clearance is not obtained with standard size connecting rod

bearings, use undersize (US) bearings.

• 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:0000000003304167

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.

Crankshaft

Connecting rod bearing

Crankshaft pin journal diameter

Grade (Mark)

Dimension (Bearing thickness range)

Bearing grade No.

Color

51.968 - 51.974 (2.0460 - 2.0462)

0

1.500 - 1.503 (0.0591 - 0.0592)

STD 0

Black

51.962 - 51.968 (2.0457 - 2.0460)

1

1.503 - 1.506 (0.0592 - 0.0593)

STD 1

Brown

51.956 - 51.962 (2.0455 - 2.0457)

2

1.506 - 1.509 (0.0593 - 0.0594)

STD 2

Green

Connecting rod bearing grade table

: Refer to 

EM-150, "Connecting Rod Bearing"

.

Bearing undersize 
table

: Refer to 

EM-150, 

"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

JPBIA0269ZZ

Revision: 2008 October

2009 Murano

HOW TO SELECT PISTON AND BEARING

EM-139

< DISASSEMBLY AND ASSEMBLY >

C

D

E

F

G

H

I

J

K

L

M

A

EM

N

P

O

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-126, "Inspection"

.

2.

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

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)

J

: Pin diameter grade No. 6

K

: Identification code

PBIC5332E

Main bearing grade table (All journals)

: Refer to 

EM-149, "Main Bearing"

.

Revision: 2008 October

2009 Murano

EM-140

< DISASSEMBLY AND ASSEMBLY >

HOW TO SELECT PISTON AND BEARING

UNDERSIZE BEARING USAGE GUIDE

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

side (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:

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-149, 

"Main Bearing"

.

JPBIA0216ZZ

Revision: 2008 October

2009 Murano

SERVICE DATA AND SPECIFICATIONS (SDS)

EM-141

< SERVICE DATA AND SPECIFICATIONS (SDS) 

C

D

E

F

G

H

I

J

K

L

M

A

EM

N

P

O

SERVICE DATA AND SPECIFICATIONS (SDS)

SERVICE DATA AND SPECIFICATIONS (SDS)

General Specification

INFOID:0000000003304232

GENERAL SPECIFICATIONS

Drive Belt

INFOID:0000000003304233

DRIVE BELT

Cylinder arrangement

V-6

Displacement

cm

3

 (cu in)

3,498 (213.45)

Bore and stroke

mm (in)

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

10.3

Compression pressure                                   

kPa (kg/cm

2

, psi)/300 rpm

Standard

1,275 (13.0, 185)

Minimum

981 (10.0, 142)

Differential limit between cylinders

98 (1.0, 14)

Cylinder number

Valve timing
(Valve timing control - “OFF”)

Unit: degree

a

b

c

d

e

f

240

240

−

10

70

10

50

SEM713A

PBIC0187E

Tension of drive belt

Belt tension is not necessary, as it is automatically adjusted by drive belt auto-tensioner.

Revision: 2008 October

2009 Murano

EM-142

< SERVICE DATA AND SPECIFICATIONS (SDS) 

SERVICE DATA AND SPECIFICATIONS (SDS)

Spark Plug

INFOID:0000000003304234

SPARK PLUG

Unit: mm (in)

Intake Manifold 

INFOID:0000000003304235

INTAKE MANIFOLD

Unit: mm (in)

Exhaust Manifold

INFOID:0000000003304236

EXHAUST MANIFOLD

Unit: mm (in)

Camshaft

INFOID:0000000003304237

CAMSHAFT

Unit: mm (in)

Make

DENSO

Standard type

FXE22HR11

Gap

Standard

1.1 (0.043)

Limit

1.4 (0.055)

Items

                                Limit

Surface distortion

Intake manifold

0.1 (0.004)

Items

                                Limit

Surface distortion

Exhaust manifold

0.3 (0.012)

Items

Standard

Limit

Camshaft journal oil clearance

No. 1

0.045 - 0.086 (0.0018 - 0.0034)

0.15 (0.0059)

No. 2, 3, 4

0.035 - 0.076 (0.0014 - 0.0030)

Camshaft bracket inner diameter

No. 1

26.000 - 26.021 (1.0236 - 1.0244)

—

No. 2, 3, 4

23.500 - 23.521 (0.9252 - 0.9260)

—

Camshaft journal diameter

No. 1

25.935 - 25.955 (1.0211 - 1.0218)

—

No. 2, 3, 4

23.445 - 23.465 (0.9230 - 0.9238)

—

Camshaft end play

0.115 - 0.188 (0.0045 - 0.0074)

0.24 (0.0094)

Camshaft cam height “A”

Intake

45.465 - 45.655 (1.7900 - 1.7974)

0.2 (0.008)*

1

Exhaust

45.475 - 45.665 (1.7904 - 1.7978)

0.2 (0.008)*

1

Camshaft runout [TIR*

2

]

Less than 0.02 mm (0.0008)

0.05 (0.0020)

Camshaft sprocket runout [TIR*

2

]

—

0.15 (0.0059)

SEM671

Revision: 2008 October

2009 Murano

SERVICE DATA AND SPECIFICATIONS (SDS)

EM-143

< SERVICE DATA AND SPECIFICATIONS (SDS) 

C

D

E

F

G

H

I

J

K

L

M

A

EM

N

P

O

*

1

: Cam wear limit

*

2

: Total indicator reading

VALVE LIFTER

Unit: mm (in)

VALVE CLEARANCE

Unit: mm (in)

*: Approximately 80

°

C (176

°

F)

AVAILABLE VALVE LIFTER

Unit: mm (in)

Items

Standard

Valve lifter outer diameter

33.980 - 33.990 (1.3378 - 1.3382)

Valve lifter hole diameter

34.000 - 34.016 (1.3386 - 1.3392)

Valve lifter clearance

0.010 - 0.036 (0.0004 - 0.0014)

Items

Cold

Hot* (reference data)

Intake

0.26 - 0.34 (0.010 - 0.013)

0.304 - 0.416 (0.012 - 0.016)

Exhaust

0.29 - 0.37 (0.011 - 0.015)

0.308 - 0.432 (0.012 - 0.017)

Identification (stamped) mark

Thickness

788

7.88 (0.3102)

790

7.90 (0.3110)

792

7.92 (0.3118)

794

7.94 (0.3126)

796

7.96 (0.3134)

798

7.98 (0.3142)

800

8.00 (0.3150)

802

8.02 (0.3157)

804

8.04 (0.3165)

806

8.06 (0.3173)

808

8.08 (0.3181)

810

8.10 (0.3189)

812

8.12 (0.3197)

814

8.14 (0.3205)

816

8.16 (0.3213)

818

8.18 (0.3220)

820

8.20 (0.3228)

822

8.22 (0.3236)

824

8.24 (0.3244)

826

8.26 (0.3252)

828

8.28 (0.3260)

830

8.30 (0.3268)

832

8.32 (0.3276)

834

8.34 (0.3283)

836

8.36 (0.3291)

838

8.38 (0.3299)

Revision: 2008 October

2009 Murano

EM-144

< SERVICE DATA AND SPECIFICATIONS (SDS) 

SERVICE DATA AND SPECIFICATIONS (SDS)

Cylinder Head

INFOID:0000000003304238

CYLINDER HEAD

Unit: mm (in)

VALVE DIMENSIONS

Unit: mm (in)

840

8.40 (0.3307)

Identification (stamped) mark

Thickness

SEM758G

Items

Standard

Limit

Head surface distortion

Less than 0.03 (0.0012)

0.1 (0.004)

Normal cylinder head height “H”

126.3 - 126.5 (4.97 - 4.98)

—

PBIC0924E

Valve head diameter “D”

Intake

36.6 - 36.9 (1.441 - 1.453)

Exhaust

30.2 - 30.5 (1.189 - 1.201)

Valve length “L”

Intake

97.13 (3.8240)

Exhaust

94.67 (3.7272)

Valve stem diameter “d”

Intake

5.965 - 5.980 (0.2348 - 0.2354)

Exhaust

5.962 - 5.970 (0.2347 - 0.2350)

SEM188

Revision: 2008 October

2009 Murano