MITSUBISHI MONTERO 1987 1.G Workshop Manual

STARTING SYSTEM-Starter Motor 8-101
Snap
L Armature
1ELlO
pi-
SERVICE POINTS OF DISASSEMBLY
9. CAUTION OF ARMATURE/ll. BALL
When removing the armature, do not lose the ball which acts
as a bearing for the armature and tip.
17. DISASSEMBLY OF SNAP RING/18. STOP RING
(1) Push the stop ring towards the snap ring using the proper
socket.
(2) After removal of the snap ring with the snap ring pliers,
remove the stop ring and the over-running clutch.
CLEANING STARTER MOTOR PARTS
1, Do not immerse parts in cleaning solvent. Immersing the yoke
and field coil assembly and/or armature will damage insulation.
Wipe these parts with a cloth only.
2. Do not immerse drive unit in cleaning solvent. Overrunning
clutch is pre-lubricated at the factory and solvent will wash
lubrication from clutch.
3. The drive unit may be cleaned with a brush moistened with
cleaning solvent and wiped dry with a cloth.
INSPECTION
CHECKING COMMUTATOR
(1) Place the armature on a pair of V blocks and check run-out with
a dial gauge.
Standard value : 0.05 mm (-0020 in.)
Limit : 0.1 mm (.0039 in.)
wision
I

8-102 STARTING SYSTEM-Starter Motor
lEL116
lEL66
Brush holder
(2) Check the outer diameter.
Standard value : 29.4 mm (1.157 in.)
Limit : 28.8 mm (1.134 in.)
(3) Check the depth of the undercut between segments.
Standard value : 0.5-0.8 mm (.020-.031 in.)
BRUSH HOLDER
Check conductivity between the brush holder plate and brush
holder. If there is no conductivity this is normal.
OVERRUNNING CLUTCH
1. While holding clutch housing, rotate the pinion. Drive pinion
should rotate smoothly in one direction, but should not rotate
in opposite direction. If clutch does not function properly, re-
place overrunning clutch assembly.
2. Inspect pinion for wear or burrs. If pinion is worn or burred,
replace overrunning clutch assembly. If pinion is damaged,
also inspect ring gear for wear or burrs.
FRONT AND REAR IBRACKET BUSHING
Inspect bushing for wear or burrs. If bushing is worn or burred,
replace front bracket assembly or rear bracket assembly.
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STARTING SYSTEM -Starter Motor 8-103
E i&l
-Limit line
1ELOlI
New brush
Soidered
(Make sure that
there is no excess
solder on brush
surface)
Surface marked If
1ELM
6EL082
1FL 108
REPLACEMENT OF BRUSHES AND SPRINGS
1. Brushes that are worn beyond limit line, or are oil-soaked,
should be replaced.
2. When replacing field coil brushes, crush worn brush with pli-
ers, taking care not to damage pigtail.
3. Sand pigtail end with sandpaper to ensure good soldering.
4. Insert pigtail into hole provided in new brush and solder it.
Make sure that pigtail and excess solder do not come out onto
brush surface.
5. When replacing ground brush, slide the brush from brush
holder by prying retaining spring back.
TESTING ARMATURE
TESTING ARMATURE FOR SHORT-CIRCUIT
1. Place armature in a growler.
2. Hold a thin steel blade parallel and just above while rotating
armature slowly in growler. A shorted armature will cause
blade to vibrate and be attracted to the core. Replace shorted
armature.
TESTING ARMATURE FOR GROUNDING
Check the insulation in the space between the segments of the
commutator and the armature and coil core. If there is no conduc-
tivity this is normal.
CHECKING CIRCUIT BREAK BETWEEN ARMATURE AND COIL
Check conductivity between each segment. If there is conductiv-
ity this is normal.
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8-104 STARTING SYSTEM-Starter Motor
SERVICE POINTS OF REASSEMBLY
18. REASSEMBLY OF STOP RINGi17. SNAP RING
Using a suitable pulling tool, pull overrunning clutch stop ring
over snap ring.
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IGNITION SYSTEM -General Information 8-105
IGNITION SYSTEM
GENERAL INFORMATION
NOUGAAB
The ignition system consists of battery, distributor, (igniter-integrated) ignition coil, spark plug, high tension cable,
ignition switch and connecting wire.
Ignition
switch
0

m
I
1 AMR 1Gl
I
Ignition
coil
r
Ignite; Distributor
lEL117
The distributor is composed of signal generator (signal rotor and igniter internalized pickup), linear current control
unit (igniter) advance control unit (governor and vacuum controller) and distribution unit (rotor plus distributor cap).

IGNITION SYSTEM-General Information
IISTRIBUTOR
Vacuum controller
lEL153
IGNITER OPERATION
(1) When the signal rotor revolves a projection inside the signal rotor alternately moves away from and faces
towards the core detector inside the igniter.
(2) When the projection is separated from the core, an oscillating electrical circuit begins to oscillate, and when it
faces, magnetic flux issuing from the core moves across the inside of the signal rotor, so when loss increases,
oscillation ceases.
(3) This oscillation introduces power to the oscillation detector circuit, and after output is amplified it drives the
power transistor. During oscillation (when the projection and core are apart) electricity flowing through the
ignition coil and when oscillation stops (when the projection and core are facing) the electric current is inter-
rupted.
(4) The electrical detection circuit, in preventing excessive electrical flow to the power transistor, protects the
transistor.
Ignition
switch
m Sig,nal rotor
Detection coil
and core -I- ----
Power
Oscillation - Amplifier
detector
Oscillation
Current
ditector
Igniter J152
-.I-
T
1 Battery
I
-
T
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IGNITION SYSTEM - Specifications 8-107
SPECIFICATIONS
GENERAL SPECIFICATIONS
DISTRIBUTOR N08GB.B
Type
Model No.
Part No.
Igniter
Firing order Items Federal
Contact pointless type
T3T61980A
MD109013
Built-in type
1-3-4-2 California
Contact pointless type
T3T65571
MD1 10264
Built-in type
1-3-4-2
IGNITION COIL
Type
Model No.
Part No. Items
Oil filled
E-089
M DO73079 Specifications
SPARK PLUG
Items
Factory installed plug Model No. Manifacturer
W20EP-U 10 NIPPON DENS0
W20EPR-Sll
BURGEA-1 1
Alternate plug BPGES-1 1
BPRGES-1 1
BUGEA-11 NGK
W20EPR-U IO
W20EPSll NIPPON DENS0
IGNITION SWITCH
Items
ignition switch
Load capacity
AM-ACC
AM-IG
AM-ST
AM-R
Voltage drop (under actual load)
Key reminder switch
Rated load
Voltage drop Specifications
15A
30A
15A
15A
0.1 V or less
IW
0.2 V or less
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8408 IGNITION SYSTEM - Specifications
SERVICE SPECIFICATIONS
N08GC-B
Items Specifications
Basic ignition timing at curb idle speed 7”BTDC
Distributor
Federal
Governor (crank deghpm)
Initial O/l 600
Middle 1 9/2800
Final 1 g/6000
Vacuum (crank deg/mmHg)
Initial
O/80
Middle 12/I 50
Final 231280
California
Governor (crank deghpm)
initial O/l 600
Middle 912800
Final 1 g/6000
Vacuum (crank deg/mmHg)
Initial O/80
Middle 8/l 50
Final 201360
Idle advance (crank deg/mmHg)
Initial O/60
Final 5180
Ignition coil
Primary resistance at 20°C (68°F) R 1.1-1.3
Secondary resistance at 20°C (68°F) k0 14.5-19.5
External resistor resistance at 20°C (68°F) 1R 1.22-1.48
Spark plug gap mm (in.) 1.0-I .I (.039-,043)
TORQUE SPECIFICATIONS
Items Nm
NOBGD-
ft.lbs.
Spark plug 20-30 15-21
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IGNITLON SYSTEM -Troubleshooting 8-109
TROUBLESHOOTING
NOBGH--
Symptom Probable cause
Remedy
Reference
paw
Engine will not start or
Incorrect ignition timing
8-111
hard to start (cranks Adjust ignition timing
OKI Ignition coil faulty
Inspect ignition coil 8-116
Ignition faulty
Inspect igniter
8-120
Distributor faulty
Inspect distributor 8-120
High tension cord faulty
Inspect high tension 8-116
cord
Spark plugs faulty Replace plugs 8-115
Ignition wiring disconnected or broken
Inspect wiring -
Rough idle or stalls
Spark plugs faulty
Replace plugs 8-115
Ignition wiring faulty
Inspect wiring -
Incorrect ignition timing
Adjust ignition timing
8-111
Ignition coil faulty
Inspect ignition coil 8-116
Ignition faulty
Inspect igniter 8-120
High tension cord faulty
Inspect high tension 8-116
cord
Engine hesitates/poor
acceleration Spark plugs faulty Replace plugs 8-115
Ignition wiring faulty
Inspect wiring -
Incorrect ignition timing
Adjust timing 8-111
Poor gasoline mileage
Spark plugs faulty Replace plugs 8-115
Incorrect ignition timing Adjust ignition timing 8-111
Engine overheats Incorrect ignition timing
Adjust ignition timing
8-111 1 STB Revision

8-110 IGNITION SYSTEM - Circuit Diagram
2 IGNITDN CIRCUIT
Sub fusible link
A-23
(IGN - SW) Ignition switch
5-wn5-w-
0.5-G 1
u
63- Z-W
I
IAT
Main 1
fusible
Rnttprv link
m
ze 3 cj _-’ A:“p m
N CL
I 64-b I I I m
I
Ei
I
L Disi
To combination meter d A-an b
(TACHO)
[Refer to P.8-52.1
I I Ignition coil
37 w009
Remaik
-‘For information concerning the ground points (example: q ),
refer to P.8-7.
Wiring color code’ c
B: Black Br: Brown G: Green Gr: Gray L: Blue Lg: Light green
LI: Light blue 0: Orange P: Pink R: Red Y: Yellow V/: White
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