Infiniti FX35, FX50 (S51). Manual - part 438

CHG

ALTERNATOR

CHG-33

< REMOVAL AND INSTALLATION >

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DISASSEMBLY

Type: A003TJ3091

1.

Alternator

2.

“B” terminal nut

3.

Alternator connector

4.

Alternator stay

5.

Alternator mounting lower bolt

6.

Alternator mounting upper bolt

7.

Alternator bracket

 : Engine front

Refer to 

GI-4, "Components"

 for symbols in the figure.

JPLIA1203GB

JSMIA0007GB

1.

Rear bearing

2.

Rotor assembly

3.

Retainer

4.

Front bearing

5.

Front bracket assembly

6.

Pulley

7.

Pulley nut

8.

Stator assembly

9.

IC voltage regulator assembly

10. Diode assembly

11.

Rear bracket assembly

12. Terminal set

CHG-34

< REMOVAL AND INSTALLATION >

ALTERNATOR

VK50VE : Removal and Installation

INFOID:0000000005242985

REMOVAL

1.

Disconnect the battery cable from the negative terminal.

2.

Remove drive belt. Refer to 

EM-176, "Exploded View"

3.

Remove the air ducts and air cleaner assembly RH. 

4.

Remove the alternator connector harness bracket (A).

5.

Move a steering hose and harness not to interfere the removal
of the alternator. 

6.

Remove the alternator mounting bolt (B) and alternator mount-
ing bolt (C).

7.

Pull and turn alternator, and then remove the “B” terminal nut (A)
and alternator connector (B).

8.

Remove alternator assembly (1) upward from the vehicle.

INSTALLATION

Install in the reverse order of removal.

CAUTION:

Be sure to tighten “B” terminal nut carefully.
• Install alternator, and check tension of belt. Refer to 

EM-163, "Checking"

.

• For this model, the power generation voltage variable control system that controls the power generation volt-

age of the alternator has been adopted. Therefore, the power generation voltage variable control system
operation inspection should be performed after replacing the alternator, and then make sure that the system
operates normally. Refer to 

CHG-27, "Inspection Procedure"

.

VK50VE : Inspection

INFOID:0000000005242986

ALTERNATOR PULLEY INSPECTION

Perform the following.

13. “B” terminal nut

Refer to 

GI-4, "Components"

 for symbols in the figure.

JPLIA1171ZZ

JPLIA1168ZZ

JPLIA1169ZZ

CHG

ALTERNATOR

CHG-35

< REMOVAL AND INSTALLATION >

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• Make sure that alternator pulley does not rattle.
• Make sure that alternator pulley nut is tight. Refer to 

CHG-32, "VK50VE : Exploded View"

.

CHG-36

< SERVICE DATA AND SPECIFICATIONS (SDS) 

SERVICE DATA AND SPECIFICATIONS (SDS)

SERVICE DATA AND SPECIFICATIONS (SDS)

SERVICE DATA AND SPECIFICATIONS (SDS)

Alternator

INFOID:0000000005242987

*: Adjustment range of power generation voltage variable control is 11.4 - 15.6 V.

VQ35HR

VK50VE

Type

A003TJ1991

A003TJ3091

MITSUBISHI make

Nominal rating

[V - A]

12 -150

Ground polarity

Negative

Minimum revolution under no-load 
(When 13.5 V is applied)

[rpm]

Less than 1,300

Hot output current (When 13.5 V is ap-
plied)

[A/

rpm]

More than 31/1,300

More than 122/2,500
More than 144/5,000

Regulated output voltage

[V]

14.1 – 14.7

*

Minimum length of brush

[mm

(in)]

More than 5.00 (0.197)

Brush spring pressure

[N (g,

oz)]

4.1 – 5.3 (418 – 541, 14.7 – 19.1)

Slip ring minimum outer diameter

[mm

(in)]

More than 22.1 (0.870)

Rotor (Field coil) resistance

[

Ω

]

1.7 – 2.0