1992 MITSUBISHI 3000GT starter

Downloaded from www.Manualslib.com manuals search engine ENGINE ELECTRICAL - Starting System16-23
OPERATION
L
0For models equipped with the M/T, the clutch
pedal position switch contact is switched OFF
when the clutch pedal is depressed; when the
ignition switch is then switched to the “ST’ posi-tion, electricity flows to the starter relay and
the starter motor, the contact (magnetic switch)of the starter is switched ON and the starter
motor is activated.
NOTEIf the ignition switch is switched to the “ST
position without the clutch pedal being de-
pressed, electricity flows to the starter relay
(coil), the clutch pedal position switch (contacts)
and to ground, with the result that the contacts
of the starter relay are switched OFF, and, be-
cause the power to the starter motor is thereby
interrupted, the starter motor is not activated.lFor models equipped with the
AIT, when the
ignition switch is switched to the “ST’ position
while the selector lever is at the “P” or “N” posi-
tion, the contact (magnetic switch) of the starter
is switched ON and the starter motor is activated.
TROUBLESHOOTING HINTSThe starter motor does not operate at all.
l Check the starter (coil).
lCheck for poor contact at the battery terminals
and starter.l Check Park/Neutral position switch.
l Check clutch pedal position switch.
l Check starter relay.
l Check theft-alarm starter relay.
l Check key reminder switch.
i
/’
L&J
Fieldcoil wire
Iii?Stopper
IPinion gap
PinionZ6EL003
STARTER MOTORREMOVAL AND INSTALLATION
Refer to GROUP 22
- Manual Transaxle, or GROUP 23 -
Automatic Transaxle.INSPECTION
PINION GAP ADJUSTMENT(1) Disconnect field coil wire from M-terminal of magnetic
switch.
(2)Connect a 12 V battery between S-terminal and M-terminal.(3) Set switch to “ON”, and pinion will move out.
Caution
This test must be performed quickly (in less than 10
seconds) to prevent coil from burning.(4) Check pinion to stopper clearance (pinion gap) with a
feeler gauge.
Standard value: 0.5-2.0 mm (.020-,079 in.)
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Downloaded from www.Manualslib.com manuals search engine 16-24ENGINE ELECTRICAL - Starting System
ZlEL11327ELOOlQ
0
5
Startermotor
Carbon-pile rheostat
-I-Battery
i12v I
Voltmeter7-II27ELOO22(5) If pinion gap is out of specification, adjust by adding or
removing gaskets between magnetic switch and front
bracket.
MAGNETIC SWITCH PULL-IN TEST(1) Disconnect field coil wire from M-terminal of magnetic
switch.
(2)
Connect a 12 V battery between S-terminal and M-terminal.
Caution
This test must be performed quickly (in less than 10
seconds) to prevent coil from burning.
(3) If pinion moves out, then pull-in coil is good. If it doesn’t,
replace magnetic switch.
MAGNETIC SWITCH HOLD-IN TEST(1) Disconnect field coil wire from M-terminal of magnetic
switch.(2) Connect a 12 V battery between S-terminal and body.
Caution
This test must be performed quickly (in less than 10
seconds) to prevent coil from burning.(3) Pull out the pinion by hand until it comes into contact
with the pinion stopper.
(4)If pinion remains out, everything is in order. If pinion moves
in, hold-in circuit is open. Replace magnetic switch.
FREE RUNNING TEST
(1) Place starter motor in a vise equipped with soft jaws andconnect a fully-charged
12-volt battery to starter motor
as follows:
(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 (15volt 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 the battery voltage shown by the
voltmeter is 11 V.
(7) Confirm that the maximum amperage is within the specifi-
cations and that the starter motor turns smoothly and freely.
Current: Max. 90 Amps
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Downloaded from www.Manualslib.com manuals search engine ENGINE ELECTRICAL - Starting System16-25
L
Field coil wire27EL0021216Fo264
00002526
MAGNETIC SWITCH RETURN TEST(1) Disconnect field coil wire from M-terminal of magnetic
switch.(2) Connect a 12 V battery between M-terminal and body.
Caution
This test must be performed quickly (in less than 10
seconds) to prevent coil from burning.(3) Pull pinion out and release. If pinion quickly returns to
its original position, everything is in order. If it doesn’t,
replace magnetic switch.
Caution
When pulling out the pinion, be careful not to have
your finger pinched.
STARTER RELAY(1) Remove the starter relay from the relay box.
(2)Connect battery to terminal 2 and check continuity between
terminals with terminal 4 grounded.
Power is supplied3-4 terminals
3-5 terminalsNo continuity
Continuity
/ 3-4 terminals / Continuity 1
Power is not
supplied3-5 terminals
l-2 terminalsNo continuity
Continuity
i
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Downloaded from www.Manualslib.com manuals search engine ENGINE ELECTRICAL - Starting System16-27

27EN0628
1'0
Disassembly steps
1.Screw2.Magnetic switch3.Screw4.Starter cover5.Rear bracket6.Brush holder7.Brush8.Bush4A,9.Armature;y. Fap assembly
4A, .
12.Packing A13.Packing B
14.Plate
15.Planetary gear16.Lever4B, .A4 17. Snap ring4B, .A4 18. Stop ring19.Overrunning clutch20.Internal gear21. Planetary gear holder22.Front bracketDISASSEMBLY SERVICE POINTS
+A,ARMATURE / BALL REMOVAL
Caution
When removing the armature, be careful not to lose
the ball (which is used as a bearing) in the armature
end.
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Downloaded from www.Manualslib.com manuals search engine 16-28ENGINE ELECTRICAL - Starting System
Stop ringZ6EL0097
Z6ELOO96+B,SNAP
RING / STOP RING REMOVAL
(1) Press the stop ring, by using an appropriate socket,wrench, to the snap ring side.
(2)After removing the snap ring (by using snap-ring pliers),
remove the stop ring and the overrunning clutch.STARTER MOTOR PARTS CLEANING
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.
REASSEMBLY SERVICE POINT
,A+TOP RING / SNAP RING INSTALLATION
Using a suitable pulling tool, pull overrunning clutch stop
ring over snap ring.INSPECTION
COMMUTATOR INSPECTION
(1) Place the armature on a pair of V-blocks, and check thedeflection by using a dial gauge.
Standard value: 0.05 mm (JO20 in.)
Limit: 0.1 mm
(.004 in.)
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Downloaded from www.Manualslib.com manuals search engine LJ
/
:i:CHASSIS ELECTRICAL
- Meters and Gauges54-23
IGNISWI?
2B-k
2B-k
2B-k
r
2B-Y
(A-67)
2B-Y
jTARTING
SUPPLEMENTALl@TE"#'NT
IONH(ST)
B-YI
z(c-31)17-1
4B-Y I1 /
f
/STARTER--------__;RELAYsPOFFINjm
CLUTCH
PEDAL
&j+$HON
1.25B-Y
IMFI SYSTEM
IGNITIONSWITCH(IG1)I
CHARGING
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0.85B-W
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lmDIODE
1.25B-Yu(Y-G)Y-G0
D-10Y-G
66
A COMBINATIONMETER90(D-04)
HRlOMOIAB
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Downloaded from www.Manualslib.com manuals search engine 54-208CHASSIS ELECTRICAL - Theft-alarm System
CIRCUIT DIAGRAM (CONTINUED)
LIGHT
AUTOMATIC
SHUT-OFF UNIT IGNITIONKEY
SW ITCH(ST)I#$!;'"
2B-Y0B-YyM/TA/T,
2B-Y
(c-31) v2LM/T "
t
A/T
2B-Y
,4may1j---1 1 j
L.mI.b ------____--___ - ------ - ----- -- ---- --$V??ER/
r77

OFi-,,ON/I\,/
2B-Y 2\G-B
(A-67) 2(3,J---_II ,-rn /TIM/T *A/Ta
I
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(1992 MODEL> *cl993 MODEL>
t
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POSITIONN SWITCHOFF-,:ONl(c-64)
6'1
LG-E
B-LY-
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I
M/T
1
I
xm-STARTER
RELAY
l(c-56)t8E
L-2%13q 1 ‘-:liq2E
GNDV
2B
HR15MOOBAI
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Downloaded from www.Manualslib.com manuals search engine 54-212CHASSIS ELECTRICAL - Theft-alarm System
CIRCUIT DIAGRAM (CONTINUED)
IGNITIONSWITCH(ST)
KEYLIGHT&y+;;ERAUTOMATIC
SHUT-OFF UNIT
rA/T yM/T
1B-LI
Y-B
7
M/T y A/T/
20-Y -4
STARTER/\
RELAY,Io oft--,--------------------------- _______I
!a
III
2B-Yr2B-L
r11/T ! A/T1t--
-B
b-B 2
LUTD-CRUISE CONTROL IMFI SYSTEM
LG-B2B-k
2B-Y
EE”pSOU;&ON
'(c-64)SUPPLEMENTALl$&gJ& I NT
MFI SYSTEMSYSTEM
J/BJ;B j "7$I
v c&i--9B-----v my9----- =54=54
R-B R-B00B-L B-LB B B B
16 164 4-5-5 99AAA h *A h *4
DATA LINK CONNECTOR
(c-79)
BATTERYJm
20B-R3B-RJ(B-23) ,.l(B-24)/\
%ERER
(c-65)(c-66)(c-79) FRONT SIDE
HRlBMOlBA
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