Mitsubishi Pajero Pinin. Manual — part 152
ENGINE ELECTRICAL –
Charging System
ENGINE ELECTRICAL –
Charging System
16-2
CHARGING SYSTEM
GENERAL
OUTLINE OF CHANGES
The following contents have been established to correspond to the addition of vehicles with 4G9-MPI
engine. Other specifications are the same as for the 4G9-GDI engine.
GENERAL INFORMATION
ALTERNATOR SPECIFICATIONS
Items
4G9-MPI
Type
Battery voltage sensing
Rated output V/A
12/85
Voltage regulator
Electronic built-in type
ALTERNATOR
REMOVAL AND INSTALLATION
Pre-removal Operation
Under Cover Removal
Post-installation Operation
D
Drive Belt Tension Adjustment
D
Under Cover Installation
3
23
±
2 N·m
5
1
2
4
<4G9– MPI>
44
±
10 N·m
44
±
10 N·m
Disassembly steps
1. Drive belt (Power steering, A/C)
2. Drive belt (Alternator)
3. Alternator brace
4. Alternator connector
5. Alternator
ENGINE ELECTRICAL –
Charging System
16-3
DISASSEMBLY AND REASSEMBLY
1
2
7
6
5
3
4
14
13
12
11
10
9
8
Disassembly steps
A
A
"
1. Front bracket assembly
A
B
"
2. Alternator pulley
"
B
A
3. Rotor
4. Rear bearing
5. Bearing retainer
6. Front bearing
7. Front bracket
A
C
"
8. Stator
9. Plate
A
C
" "
A
A
10. Regulator assembly
11. Brush
12. Slinger
13. Rectifier
14. Rear bracket
ENGINE ELECTRICAL –
Charging System
16-4
DISASSEMBLY SERVICE POINTS
A
A
"
FRONT BRACKET ASSEMBLY REMOVAL
Insert a flat tip screwdriver, etc., in the clearance between
the front bracket assembly and stator core, to pry open and
separate the stator and front bracket.
Caution
The stator coil could be damaged so do not insert the
screwdriver too far.
A
B
"
ALTERNATOR PULLEY REMOVAL
Face the pulley side upward, fix the rotor with a work bench
and remove the pulley.
Caution
Use care so that the rotor is not damaged.
A
C
"
STATOR/REGULATOR ASSEMBLY REMOVAL
1.
Use a soldering iron (180 to 250 W) to unsolder the stator.
This work should complete within approximately four
seconds to prevent heat from transferring to the diode.
2.
When removing the rectifier from the regulator assembly,
remove the soldered sections of the rectifier.
Caution
(1) Use care to make sure that the heat of the soldering
iron is not transmitted to the diodes for a long
period.
(2) Use care that no undue force is exerted to the
lead wires of the diodes.
Soldered
ENGINE ELECTRICAL –
Charging System
16-5
REASSEMBLY SERVICE POINTS
"
A
A
REGULATOR ASSEMBLY INSTALLATION
After installing the regulator assembly, insert a wire into the
hole provided on the rear bracket while pressing in the brush
to fix the brush.
NOTE
The brush is fixed when a wire is inserted, making rotor
installation easier.
"
B
A
ROTOR INSTALLATION
After installing the rotor, remove the wire used to fix the brush.
INSPECTION
ROTOR CHECK
1.
Check the continuity between the rotor coil slip rings, and
replace the rotor if the resistance value is not at the
standard value.
Standard value: 3 – 5
Ω
2.
Check the continuity between the slip ring and core, and
if there is continuity, replace the rotor.
Wire
Rear bracket
Brush
Wire
Wire
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