Infiniti G37 Coupe. Manual - part 748

 

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Infiniti G37 Coupe. Manual - part 748

 

 

HA-38

< ON-VEHICLE REPAIR >

COMPRESSOR

COMPRESSOR

Exploded View

INFOID:0000000001675634

Removal and Installation

INFOID:0000000001675635

REMOVAL

1.

Use a refrigerant collecting equipment (for HFC-134a) to discharge the refrigerant.

2.

Remove air cleaner case (LH) and air duct (LH). Refer to 

EM-26, "Exploded View"

.

3.

Remove engine undercover, using power tools.

4.

Drain engine coolant from radiator. Refer to 

CO-8, "Draining"

.

5.

Remove cooling fan assembly. Refer to 

CO-17, "Exploded View"

.

6.

Remove drive belt. Refer to 

EM-12, "Exploded View"

.

7.

Remove radiator hose (lower). Refer to 

CO-14, "Exploded View"

.

8.

Remove mounting nuts (A) from low-pressure flexible hose (1)
and high-pressure flexible hose (2).

CAUTION:

Cap or wrap the joint of the A/C piping and compressor with
suitable material such as vinyl tape to avoid the entry of air.

9.

Disconnect compressor (ECV) connector (A).

10. Disconnect compressor (magnet clutch) connector (B).

1.

Compressor

Refer to 

GI-4, "Components"

 for symbols in the figure.

JSIIA0011GB

JSIIA0090ZZ

JSIIA0021ZZ

COMPRESSOR

HA-39

< ON-VEHICLE REPAIR >

C

D

E

F

G

H

J

K

L

M

A

B

HA

N

O

P

11. Remove mounting bolts (A) from compressor (1), using power

tools.

12. Remove the compressor from top of the vehicle.

INSTALLATION

Installation is basically the reverse order of removal.

CAUTION:

• Replace O-rings with new ones. Then apply compressor oil to them when installing.
• Check for leakages when recharging refrigerant.

Inspection

INFOID:0000000001675636

CHECK DISC TO PULLEY CLEARANCE

Check the clearance (B) between pulley assembly (1) and clutch
disc (2) along the entire periphery with a feeler gauge (A).

Replace compressor if specified clearance is not obtained.

JSIIA0022ZZ

Standard

: Refer to 

HA-57, "Compressor"

.

JSIIA0087ZZ

HA-40

< ON-VEHICLE REPAIR >

LOW-PRESSURE FLEXIBLE HOSE AND PIPE 2

LOW-PRESSURE FLEXIBLE HOSE AND PIPE 2

Exploded View

INFOID:0000000001713747

Refer to 

HA-13, "Refrigerant Connection"

.

Removal and Installation

INFOID:0000000001675638

REMOVAL

1.

Use a refrigerant collecting equipment (for HFC-134a) to discharge the refrigerant.

2.

Remove engine cover. Refer to 

EM-28, "Exploded View"

.

3.

Remove air cleaner case (LH) and air duct (LH). Refer to 

EM-26, "Exploded View"

.

4.

Remove cowl top cover. Refer to 

EXT-21, "Exploded View"

.

1.

Blower unit

2.

O-ring

3.

Low-pressure pipe 2

4.

Low-pressure flexible hose

5.

Compressor

6.

Radiator & condenser assembly

7.

High-pressure flexible hose

8.

High-pressure pipe 1

9.

Heater & cooling unit assembly

10. Expansion valve

11.

Evaporator

12. High-pressure pipe 2

13. Low-pressure pipe 1

Refer to 

GI-4, "Components"

 for symbols in the figure.

JSIIA0109GB

LOW-PRESSURE FLEXIBLE HOSE AND PIPE 2

HA-41

< ON-VEHICLE REPAIR >

C

D

E

F

G

H

J

K

L

M

A

B

HA

N

O

P

5.

Remove mounting bolt (A) from low-pressure flexible hose
bracket (1).

6.

Disconnect one-touch joint between low-pressure pipe 1 (1) and
low-pressure pipe 2 (2) with disconnector (A) (SST:
9253089916).

CAUTION:

Cap or wrap the joint of the A/C piping with suitable mate-
rial such as vinyl tape to avoid the entry of air.

7.

Disconnect one-touch joint between low-pressure pipe 2 (1) and
low-pressure flexible hose (2) with disconnector (A) (SST:
9253089916).

CAUTION:

Cap or wrap the joint of the A/C piping with suitable mate-
rial such as vinyl tape to avoid the entry of air.

8.

Remove low-pressure pipe 2 clip (B).

9.

Remove low-pressure pipe 2.

10. Remove mounting nut (A) from low-pressure flexible hose (1).

CAUTION:

Cap or wrap the joint of the A/C piping and compressor with
suitable material such as vinyl tape to avoid the entry of air.

11. Remove low-pressure flexible hose.

INSTALLATION

Installation is basically the reverse order of removal.

CAUTION:

• Replace O-rings with new ones. Then apply compressor oil to them when installing.
• Female-side piping connection is thin and easy to deform. Slowly insert the male-side piping

straight in axial direction.

• Insert piping securely until a click is heard.
• After piping connection is completed, pull male-side piping by hand to make sure that connection

does not come loose.

• Check for leakages when recharging refrigerant.

JSIIA0023ZZ

JSIIA0091ZZ

JSIIA0024ZZ

JSIIA0025ZZ

 

 

 

 

 

 

 

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