1994 MITSUBISHI 3000GT Workshop Manual

Downloaded from www.Manualslib.com manuals search engine ENGINE ELECTRICAL - Starting System16-19
L/J
STARTING SYSTEM
SPECIFICATIONSGENERAL SPECIFICATIONS
STARTER MOTOR
ItemsSpecifications
L
ITypeReduction drive (with planetary gear)I
IRated output kW/V1.2112I
No. of pinion teeth8ISERVICE SPECIFICATIONS
STARTER MOTOR
Items
Freerunning Terminal voltage V
characteristicsCurrent A
Speed
r/min
Pinion gap mm (in.)
Commutator
runout mm (in.)
Commutator diameter mm (in.)
Undercut depth mm (in.)Standard value
11
90 or less
3,000 or more
0.5-2.0 (.020-.079)
0.05
(.0020)
29.4 (1.158)
0.5 (.020)Limit
0.1 (.004)
28.4 (1.118)
i
TSB Revision

Downloaded from www.Manualslib.com manuals search engine 16-20ENGINE ELECTRICAL - Starting SystemTROUBLESHOOTING
CIRCUIT DIAGRAM

(M/T>(A/T>
IGISW-
2B-
2B-
(c-31
2B-
!
2B-
(A-67
2B-ION
HCST)IGNIZRYSWIT-
2B-Y
IONHCST)BAZRY--BA-TTI
B-1
2
B-k
4
-------;;OFF2
G-B
3
G-B
I
I
/\17rSTARTERRELAY
(A-09X)AL\I;20B-R
3.
,.;
,
8$J (c-64)
0I
2B-Y
5(A-67)
AUTO-CRUISE CONTROL
2B-Y 1
MFI SYSTEM
1 1.25y
2B-Y20B-F
3
PARK/NEUTRAL&~#ONij
(B-26)
g:27:1
i28-R
0.85B-Y
ISUPPLEMENTALgf;EEiINT
1.25B-y\
1MFI SYSTEM 2B-WARNING LIGHT
1iOF?-
lmB
2B
(B-30:
3B-(8-23)
rii------- ____
d
0
==
STARTER MOTOR
NOTE%l:FROM 1993 MODEL%2:1992 MODEL
I(c-31)
STARTER MOTOR
(c-64)q
HR02MOOAA
1 TSB Revision

Downloaded from www.Manualslib.com manuals search engine ENGINE ELECTRICAL - Starting System16-21

FUSIBLE LINK@
zJ==%~,
IGNITION
2B-k
iWITCH
B-L
B-l
2
B-j
4
2B-k1
(c-31:
2B-kJ/Br
rwER
(A-OSXII-
----------SrOFFON
2
G-B
(c-02
3
G-E
PEDAL&~#,;~ONB
28-k
IOD ORSTORAGE
CONNECTOR0.85B-Y
R-B
1 I------. BUZZER. MFI SYSTEM.DOME#T,. fl@+NG
LIGHT
AND IGNITION KEY
CYLINDER
ILLUMINATION LIGHT
2G-3130.85R-B
1E;$gAb;GHT AND
EW';RTMENT
i
R-B2B-Y
3B-F
20B-R
WHEN
KEY IS
REMOVED (B-23:
r-
'TE
!
LG-B
21Q
MOTOR
B-l
B-L-
*;~F$K& DOOR
.ACTWE AEROB-l
4EHE;iALARM
(c-65)
r
d
6
I
ms
(c-31)(c-56) (c-58)(c-64)
STARTER
mf3t7)(c-02)
HR02MOlAA
1 TSB Revision

Downloaded from www.Manualslib.com manuals search engine 16-22ENGINE ELECTRICAL - Starting System
I
#d ~
FUSIBLE LINK@IGNITIONf
T2B-k
(c-31:
1
iWITCH (ST)
.----11 1II
I1
I
1 1
3 /3
I.----A 2
2B-Y
B-Y
4ISTARTER
RELAY
@liB
MFI SYSTEM2B-Y
--____----------------.-*OFFON
2
G-B
IOD OR
STORAGE
CONNECTOR32B~yg$!y”IsE (c-02:
O.a5R-BR-B2B-Y
eQsCIAk;GHT AND
COMPARTMENT
LIGHT
3
'BUZZERPARK/
. f~[f,\6[!?.+~~ [#~f#hI
CYLINDER
ILLUMINATION
tIGHT(B-26)
L’\2'D-'
9:2
r’”
,:1R-i
NOTEXl FROM 1993 MODEL:2 1992 MODEL
'l.25B-W
MFI SYSTEM
2B-R
BATTERY(
2B-R
208-R(B-30)
3B-R
(B-23)1(B-24)
SUPPLEMENTAL
1gEyL&E"i I NT
h
STARTER ~0~0: WHEN
KEY IS
REMOVED
B-1
B-L
$FRIW& DOOR
.ACTIVE AEROB-I
*TWF;~ALARM
HR02M02AA
1 TSB Revision

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.)
TSB Revision

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
1 TSB Revision

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
TSB Revision

Downloaded from www.Manualslib.com manuals search engine 16-26ENGINE ELECTRICAL - Starting System
DISASSEMBLY AND REASSEMBLY
I
Lj~
Disassembly steps
1.Screw;. f$gnntic switch
4:Screw5.Rear bracket6.Brush holder7.Brush8.Rear bearing
4Ab9.Armature;;. paF assembly
4A, .
12.Packing A13.Packing B14.Plate=I:. ;an$ary gear
+B, .A+ 17: Snap ring4B, .A+ 18. Stop ring19.Overrunning clutch20.Internal gear21. Planetary gear holder22.Front bracket
,
I!Lj
’
TSB Revision