1987 MITSUBISHI MONTERO service

SPECIFICATIONS
STARTING SYSTEM - Specifications 8-93
GENERAL SPECIFICATIONS NOIFB-
Items
Starter motor
Type
Model No.
Part No.
Rated output kW1 v
No. of pinion teeth Specifications
Reduction drive
MIT70481
M DO99667
I.2112
8
SERVICE SPECIFICATIONS
Items
Standard values
Starter motor
Free running characteristics
Terminal voltage V
Current A
Speed r.p.m
Under-cut depth mm (in.)
Commutator diameter mm (in.)
Pinion gap mm (in.)
Commutator runout mm (in.)
Limit
Commutator diameter mm (in.)
Commutator runout mm (in.) Specifications
11
Max. 90
Min. 3000
0.5-0.8(.020-,031)
29.4(1.157)
0.5-2.0(.020-,079)
0.05(.0020)
28.8(1.134)
0.1 (.004)
'_'
TORQUE SPECIFICATIONS
Items Nm ftlbs.
Starter motor mounting bolts 27-34 20-24
Air filter mounting nuts 16-19
12-14
1 STB Revision

STARTING WSTEM - Starter Motor 8-97
STARTER MOTOR
REMOVAL AND INSTALLATION NOBFJAE
16-19 Nm 16-19 Nm
12-l? ft.lbs. 12-14 ft.lbs.
15W1564
Removal steps
1. Air filter
2. Connection of starter motor connector
l * 3. Starter motor
NOTE
(1) Reverse the removal procedures to reinstall.
(2) ++ : Refer to “Service Points of Installation”
6EL05( This test must be performed quickly (in less than 10 sec-
onds) to prevent coil from burning. D Revision
INSPECTION PINION GAP ADJUSTMENT
I, Disconnect field coil wire from “M” -terminal of magnetic
switch.
2. Connect a 12V battery between “S” -terminal and “M” -
terminal.
3. Set switch to “ON”, and pinion will move out.
Caution

WEEM -Starter Motor 8-99
I-
Carbon-pile rheostat
6EL07’ FREE RUNNING TEST
1. Place starter motor in a vise equipped with soft jaws and
connect a fully-charged 12-volt battery to starter motor as fol-
lows :
2. Connect a test ammeter (loo-ampere scale) and carbon pile
rheostat in series with battery positive post and starter motor
terminal.
3. Connect a voltmeter (16volt scale) across starter motor.
4. Rotate carbon pile to full-resistance position.
5. Connect battery cable from battery negative post to starter
motor body.
6. Adjust rheostat until battery voltage shown on the voltme-
ter reads 1 IV.
7. Confirm that the maximum amperage is within the stand-
ard value and that the starter motor turns smoothly and
freely.
Standard value : Current
Speed Max. 90A
Min. 3,000 rpm
RETURN TEST OF MAGNETIC SWITCH
1. Disconnect field coil wire from “M” terminal of magnetic
switch.
2. Connect a 12V battery between M-terminal and body.
Caution
This test must be performed quickly (in less than 10 sec-
onds) to prevent coil from burning.
3. Pull pinion out and release. If pinion quickly returns to its orig-
inal position, everything is in order. If it doesn’t, replace mag-
netic switch.
SERVICE POINTS OF INSTALLATION
3. INSTALLATlON OF STARTER MOTOR
Clean both surfaces of starter motor flange and rear plate.
[ ST6 Revision
1

STARTING SYSTEM -Starter Motor
DISASSEMBLY AND REASSEMBLY
Disassembly steps
+* 1. Screw
2. Magnetic switch
3. Screw
4. Screw
5. Rear bracket
6. Brush holder
7. Brush
8. Rear bearing
9. Armature
10. Yoke assembly
4* 11. Ball
12. Packing A
13. Packing B
14. Plate
15. Planetary gear
16. Lever
+* l d 17. Snap ring
+* l a 18. Stop ring
19. Over running clutch
20. -Internal gear
21. Planetary gear holder
22. Front bracket
6ELlSS
NOTE
(1) Reverse the disassembly procedures to reassemble.
(2) a+: Refer to “Service Points of Disassembly”.
(3) l O: Refer to “Service Points of Reassembly”.
] STB Revision

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

8-104 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.
1 STB Revision
--I

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
1 STB Revision

IGNITION SYSTEM - Service Adjustment Procedures 8-111
SERVICE ADJUSTMENT PROCEDURES
CHECKING IGNITION TIMING NOEGIBA
IGNITION TIMING ADJUSTMENT
Adjustment conditions:
Coolant temperature: 80-90°C (170-I 90°F)
Lights and all accessories: Off
Transmission: N (Neutral)
1. Connect tachometer and timing light.
2. Start eng.ine and run at curb idle speed.
I
Curb idle speed rpm
First 500 km
(300 mile)
After 500 km
(300 mile)
725';;;
800 ?I00 3. To make adjustment at high altitude, disconnect pressure
sensor connector before stopping engine. Then restart
engine and run it at curb idle speed.
4. Check basic ignition timing and adjust if necessary.
Basic ignition timing: 7” + 2”BTDC 5. To adjust ignition timing, loosen distributor mounting nut
and turn distributor housing.
6. After adjustment, securely tighten mounting nut.
7. Reconnect pressure sensor connector disconnected in
Step 3. Then run engine at curb idle speed to make sure
that actual ignition timing is obtained.
. .
CHECKING IGNITION SYSTEM NOBDIDB
CHECKING CENTRIFUGAL ADVANCE EQUIPMENT 1.
Set the tachometer and timing light.
2. Start the engine and allow it to idle.
3. Pull out vacuum hose from vacuum controller.
4. Check the advance while slowly raising RPM. If the advance is
smooth when accompanying the increasing RPM, this is
normal.
Symptom Assumed causes
Excessive advance
Weakness of the governor spring
Sudden advance rise
Broken spring
Insufficient advance or large
Impaired movement of the gover-
hysteresis
nor weight or cam.
5. If the malfunction indicators above are confirmed, dismantle
and check the distributor.
6. After checking, let the engine idle and then turn the ignition
switch to OFF.
7. Remove the tachometer and timing light.‘.
1 STB Revision