Infiniti Q45. Manual — part 548



PREPARATION

EM-9

C

D

E

F

G

H

I

J

K

L

M

A

EM

(

)

Piston ring expander

Removing and installing piston ring

(

)

Valve guide drift

Removing and installing valve guide
Intake & Exhaust:
a: 9.5 mm (0.374 in) dia.
b: 5.5 mm (0.217 in) dia.

(

)

Valve guide reamer

1: Reaming valve guide inner hole
2: Reaming hole for oversize valve guide
Intake & Exhaust:
d

1

: 6.0 mm (0.236 in) dia.

d

2

: 10.2 mm (0.402 in) dia.

(

)

Front oil seal drift

Installing front oil seal when front cover is
removed

(

)

Rear oil seal drift

Installing rear oil seal

a: (J-43897-18)
b: (J-43897-12)
oxygen sensor thread cleaner

Reconditioning the exhaust system threads
before installing a new heated oxygen sensor
(Use with anti-seize lubricant shown below.)
a: J-43897- 18 [18mm (0.71 in) dia.] for
zirconia heated oxygen sensor and air fuel
ratio sensor

b: J-43897-12 [12mm (0.47 in) dia.] for
titania heated oxygen sensor and air fuel
ratio sensor

(Kent-Moore No.)
Tool name

Description

S-NT030

S-NT015

S-NT016

ZZA0012D

ZZA0025D

AEM488

EM-10

PREPARATION

(

)

Anti-seize lubricant (Permatex 133AR
or equivalent meeting MIL
specification MIL-A-907)

Lubricating heated oxygen sensor thread
cleaning tool when reconditioning exhaust
system threads

(

)

Manual lift table caddy

Removing and installing engine

(Kent-Moore No.)
Tool name

Description

AEM489

ZZA1210D

NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING

EM-11

C

D

E

F

G

H

I

J

K

L

M

A

EM

NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING

PFP:00003

NVH Troubleshooting —Engine Noise

NBS001OC

PBIC2865E

EM-12

NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING

Use the Chart Below to Help You Find the Cause of the Symptom.

NBS001OD

1.

Locate the area where noise occurs.

2.

Confirm the type of noise.

3.

Specify the operating condition of engine.

4.

Check specified noise source.

If necessary, repair or replace these parts.

A: Closely related

B: Related

C: Sometimes related

—: Not related

Location

of noise

Type of

noise

Operating condition of engine

Source of

noise

Check item

Refer-

ence page

Before

warm-

up

After

warm-

up

When

start-

ing

When

idling

When

racing

While

driving

Top of
engine
Rocker
cover
Cylinder
head

Ticking or
clicking

C

A

A

B

Tappet noise

Valve clearance

EM-57

Rattle

C

A

A

B

C

Camshaft
bearing noise

Camshaft journal clear-
ance
Camshaft runout

EM-52
EM-51

Crank-
shaft pul-
ley
Cylinder
block
(Side of
engine)
Oil pan

Slap or
knock

A

B

B

Piston pin
noise

Piston and piston pin
clearance
Connecting rod bush-
ing oil clearance

EM-100
EM-102

Slap or
rap

A

B

B

A

Piston slap
noise

Piston to cylinder bore
clearance
Piston ring side clear-
ance
Piston ring end gap
Connecting rod bend
and torsion

EM-104
EM-101
EM-101
EM-102

Knock

A

B

C

B

B

B

Connecting
rod bearing
noise

Connecting rod bush-
ing oil clearance
Connecting rod bear-
ing clearance (Big end)

EM-102
EM-107

Knock

A

B

A

B

C

Main bearing
noise

Main bearing oil clear-
ance
Crankshaft runout

EM-107
EM-106

Front of
engine
Timing
chain
cover

Tapping or
ticking

A

A

B

B

B

Timing chain
and chain
tensioner
noise

Timing chain cracks
and wear
Chain tensioner opera-
tion

EM-43
EM-39

Front of
engine

Squeak-
ing or fizz-
ing

A

B

B

C

Drive belts
(Sticking or
slipping)

Drive belts deflection

EM-14

Creaking

A

B

A

B

A

B

Drive belts
(Slipping)

Idler pulley bearing
operation

Squall
Creak

A

B

B

A

B

Water pump
noise

Water pump operation

CO-20,
"WATER
PUMP"

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Текст

Политика конфиденциальности