Nissan Qashqai (2007-2010). Manual — part 70

EM-228

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CYLINDER BLOCK

• If measured value is out of the standard, replace flywheel.

Movement Amount in Radial (Rotation) Direction

Check the movement amount of radial (rotation) direction with the following procedure:

1.

Install clutch cover mounting bolt (1) to clutch cover mounting
hole, and place a torque wrench (A) on the extended line of the
flywheel (2) center line.
• Tighten bolt at a force of 9.8 N·m (1.0 kg-m, 87 in-lb) to keep it

from loosening.

2.

Put a mating mark on circumferences of the two flywheel
masses without applying any load (Measurement standard
points).

3.

Apply a force of 9.8 N·m (1.0 kg-m, 87 in-lb) in each direction,
and mark the movement amount on the mass on the transaxle
side.

4.

Measure the dimensions of movement amounts “A” and “B” on
circumference of the flywheel on the transaxle side.

• If measured value is out of the standard, replace flywheel.

DRIVE PLATE DEFLECTION (CVT MODELS)

• Measure the deflection of drive plate contact surface to torque con-

verter with a dial indicator (A).

• Measure the deflection at the area limited between 12.4 mm

(0.488 in) dia and 20.0 mm (0.787 in) dia around hole (B).

• If measured value is out of the standard, replace drive plate.

Standard

: 1.8 mm (0.071 in) or less

Limit

: 33.2 mm (1.307 in) or less.

PBIC4007E

Limit : 0.35 mm (0.0138 in) or less.

PBIC4008E

HOW TO SELECT PISTON AND BEARING

EM-229

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HOW TO SELECT PISTON AND BEARING

Description

INFOID:0000000000893974

• 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:0000000000893975

WHEN NEW CYLINDER BLOCK IS USED

• Check the cylinder bore grade on rear left side of cylinder block (L),

and select piston of the same grade.

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

correct reference.

WHEN CYLINDER BLOCK IS REUSED

1.

Measure the cylinder bore inner diameter. Refer to

EM-241, "Cylinder Block"

.

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 an assembly.)

Piston grade (piston outer diam-
eter)

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

A

: Correction stamp

B

: Standard stamp

C

: Cylinder No. 1 bore grade

D

: Cylinder No. 2 bore grade

E

: Cylinder No. 3 bore grade

F

: Cylinder No. 4 bore grade

G

: No. 1 main bearing housing grade

H

: No. 2 main bearing housing grade

I

: No. 3 main bearing housing grade

J

: No. 4 main bearing housing grade

K

: No. 5 main bearing housing grade

: Engine front

PBIC3264J

EM-230

< DISASSEMBLY AND ASSEMBLY >

[MR20DE]

HOW TO SELECT PISTON AND BEARING

3.

Select piston of the same grade.

PISTON SELECTION TABLE

Unit: mm (in)

NOTE:
Piston is available together with piston pin as an assembly.

Connecting Rod Bearing

INFOID:0000000000893976

WHEN NEW CONNECTING ROD AND CRANKSHAFT ARE USED

1.

Apply connecting rod big end diameter grade stamped on con-
necting rod side face to the row in the “Connecting Rod Bearing
Selection Table”.

2.

Apply crankshaft pin journal diameter grade stamped on crank-
shaft front side to the column in the “Connecting Rod Bearing
Selection Table”.

3.

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

4.

Apply the symbol obtained to the “Connecting Rod Bearing Grade Table” to select connecting rod bearing.

WHEN CONNECTING ROD AND CRANKSHAFT ARE REUSED

1.

Measure the dimensions of the connecting rod big end diameter and crankshaft pin journal diameter indi-
vidually. Refer to

EM-219, "Inspection"

.

A

: Identification code

B

: Front mark

C

: Sub grade number

D

: Piston grade number

PBIC4004E

Grade number (Mark)

1

2 [or no mark (piston only)]

Cylinder bore Inner diameter

84.000 - 84.010 (3.3071 - 3.3075)

84.010 - 84.020 (3.3075 - 3.3079)

Piston skirt diameter

83.970 - 83.980 (3.3059 - 3.3063)

83.980 - 83.990 (3.3063 - 3.3067)

A

: Oil hole

B

: Management

C

: Cylinder number

D

: Big end diameter grade

E

: Small end diameter grade

F

: Front mark

PBIC4003E

A

: No. 1 pin journal diameter grade

B

: No. 2 pin journal diameter grade

C

: No. 3 pin journal diameter grade

D

: No. 4 pin journal diameter grade

E

: No. 1 main journal diameter grade

F

: No. 2 main journal diameter grade

G

: No. 3 main journal diameter grade

H

: No. 4 main journal diameter grade

I

: No. 5 main journal diameter grade

PBIC3261J

HOW TO SELECT PISTON AND BEARING

EM-231

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2.

Apply the measured dimension to the “Connecting Rod Bearing Selection Table”.

3.

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

4.

Apply the symbol obtained to the “Connecting Rod Bearing Grade Table” to select connecting rod bearing.

CONNECTING ROD BEARING SELECTION TABLE

CONNECTING ROD BEARING GRADE TABLE

UNDERSIZE BEARINGS 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 the crankshaft pin so that the connecting rod bearing oil clearance satisfies the standard.

CAUTION:

PBIC4077E

Connecting rod bearing grade table

: Refer to

EM-244, "Connecting Rod Bear-

ing"

.