Infiniti G35 (V35) Sedan. Manual - part 633

CYLINDER BLOCK

EM-131

< DISASSEMBLY AND ASSEMBLY >

C

D

E

F

G

H

I

J

K

L

M

A

EM

N

P

O

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

rod bolts to the specified torque. Refer to 

EM-114, "Disassembly and Assembly"

 for the tightening proce-

dure.

CAUTION:

Do not 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

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

block (2), and tighten lower cylinder block bolts to the specified
torque. Refer to 

EM-114, "Disassembly and Assembly"

 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-135, "Description"

.

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 lower cylinder block, and tighten lower cylinder block bolts with

lower cylinder block to the specified torque. Refer to 

EM-114, "Disassembly and Assembly"

 for the tightening

procedure.

CAUTION:

Never rotate crankshaft.

• Remove lower cylinder block 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

JPBIA0231ZZ

Standard and limit

: Refer to 

EM-150, "Main Bearing"

.

JPBIA0232ZZ

JPBIA0231ZZ

EM-132

< DISASSEMBLY AND ASSEMBLY >

CYLINDER BLOCK

• When lower cylinder block is removed after being tightened to the

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

EM-114, "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-114, "Disassem-

bly and Assembly"

 for the tightening procedure.

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

LOWER CYLINDER BLOCK 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 (d) as (c).

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

lower cylinder block bolt with new one.

CONNECTING ROD BOLT OUTER DIAMETER

1.

Measure the outer diameters [(a), (b) and (c)] at the position
shown in the figure.

2.

Obtain a mean value (d) of (a) and (b).

3.

Subtract (c) from (d).

4.

If it exceeds the limit (large difference in dimensions), replace the bolt with new one.

FLYWHEEL DEFLECTION (M/T models)

A

: Crush height

Standard

: There must be crush height.

JPBIA0233ZZ

A

: Crush height

Standard

: There must be crush height.

JPBIA0233ZZ

a

: 20 mm (0.79 in)

b

: 30 mm (1.18 in)

e

: 10 mm (0.39 in)

Limit [(c) – (d)]

: 0.11 mm (0.0043 in)

JPBIA0234ZZ

a

:Value at the end of the smaller diameter of the bolt

b

:Value at the end of the smaller diameter of the bolt [opposite side of (a)]

c

:Value of the smallest diameter of the smaller of the bolt

Limit [(d) – (c)]

: 0.09 mm (0.0035 in)

JPBIA0262ZZ

CYLINDER BLOCK

EM-133

< DISASSEMBLY AND ASSEMBLY >

C

D

E

F

G

H

I

J

K

L

M

A

EM

N

P

O

• Measure the deflection of flywheel contact surface to clutch with a

dial indicator (A).

• Measure the deflection at 210 mm (8.27 in) dia.

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

MOVEMENT AMOUNT OF FLYWHEEL (M/T models)

CAUTION:

Do not disassemble double mass flywheel.

Movement Amount in Radial (Rotation) Direction

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

1.

Install a bolt to clutch cover mounting hole, and place a torque wrench on the extended line of the flywheel
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 matching 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 (C) and (D) on circumference of the flywheel on the tran-
saxle side.

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

DRIVE PLATE (A/T models)

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

CAUTION:

• Do not disassemble drive plate.
• Do not 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

Standard 

: 0.45 mm (0.0177 in) or less.

JPBIA0236ZZ

1

: Clutch cover mounting bolt

2

: Flywheel (transaxle side)

A

:Torque wrench

b

: 9.8 N·m (1.0 kg-m, 87 in-lb)

Standard: Less than 24 mm (0.94 in)

JPBIA0237ZZ

JPBIA0192ZZ

EM-134

< DISASSEMBLY AND ASSEMBLY >

CYLINDER BLOCK

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

Make sure that valve moves smoothly with proper reaction force.

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

EMU0468D