12 1973 OPEL SERVICE MANUAL
Condition
Cause
Correction
4.
Voltage
1. Check wiring and wiring
connections.
5. Overrun&g clutch slips.
1. Replace overrunning clutch.
The cranking motor keeps
on rotating after ignition
switch is off.
1. Ignition
does not
cut off or solenoid switch
sticks.
Immediately disconnect cranking
motor cable from battery. Inspect
and/or replace or repair ignition and
solenoid switches as required.
The drive pinion
does not
after engine has
been cranked.
1. Drive
or ring gear
Clean components as specified.
teeth
clogged or flattened.
Replace as required.
Return spring slack or broken.
AND ADJUSTMENT
STARTING SYSTEM CHECKS
Voltage Loss Checks
When the starter cranks too slowly, check the bat-
tery state of charge and all electrical connections
between the battery
and starter.
1. Turn on headlights and
starter. If head-
lights dim considerably when starter is engaged, the
battery may be discharged or be defective. Check the
battery.
2. If the headlights stay bright but the starter
not turn over, the starter cables may be faulty or the
starter defective.
(a) Test battery voltage while cranking engine
volts minimum).
Check voltage from starter
of solenoid
to starter frame while cranking engine.
3. The difference in readings taken in Operations 2a
and
2b
above represents the
drop through the
cables and solenoid switch.
drop should
exceed volt.
4. Locate excessive resistance as follows:
(a) Turn voltmeter to scale above 12 volts and con-
nect voltmeter leads
connection or switch: to
be checked.
(b) With starter switch closed, turn voltmeter switch
to lowest scale and take reading as quickly as possi-
ble, then turn switch back to higher scale and
cranking engine.
(c) Voltmeter must not read more than volt across
any
If voltmeter reads more than volt,
the
must be corrected.
Starter Current Draw Lock Test
1. Make sure battery is fully charged and in good
condition.
2.
Connect a volt ampere starter tester according to
manufacturer’s instructions.
3. Pull parking brake on securely, shift transmission
into 4th (direct) gear and actuate starter. (Starter will
not
engine because engine is locked through
transmission.)
4. While starter is actuated, read voltage and current.
Refer to Specification Chart.
(a) Voltage low poor battery or a voltage loss in the
starter circuit.
(b) Current high short circuit in starter. Overhaul
starter.
(c) Current low commutator dirty, brushes worn,
solenoid switch contacts defective or open circuit in
starter. Overhaul starter.
Starter Current
On Car
1. Bring engine to normal operating temperature.
2. Stop engine and disconnect coil wire from dis-
tributor.
3.
Ground coil wire to prevent excessive coil voltage
build up.
Summary of Contents for 1900 1973
Page 1: ......
Page 7: ......
Page 9: ......
Page 48: ...IGNITION SYSTEM lC 27 9 3OlC19 Figure 1 C l 3 Distributor Exploded...
Page 57: ...I I 1 D 36 1973 OPEL SERVICE MANUAL I Figure 1 D 27 Alternator Exploded View 301D27...
Page 95: ...j 1J 74 1973 OPEL SERVICE MANUAL i I m Figure 13 1 Windshield Wiper and Horn Opel 1900 Manta...
Page 96: ...I I WIRING DIAGRAMS lJ 75 Figure lJ 2 Windshield Wiper and Horn Rallye...
Page 97: ...1 J 76 1973 OPEL SERVICE IMANUAL L J Figure lJ 3 Wind hield Wiper and Horn Gl...
Page 98: ...I I I WIRING DIAGRAMS 1J 77 I I Figure 1 J 4 Turn Signal and Hazard Flasher Opel 1900 Manta I...
Page 99: ...I i L I lJ 78 1873 OPEL SERVICE MANUAL Figure lJ 5 Turn Signal and Hazard Flasher GT...
Page 100: ...I WIRING DIAGRAMS 15 79 I I Figure lJ 6 Oil Fuel Temp Tach Stop and Brake Warning Light GT I...
Page 101: ......
Page 102: ...I WIRING DIAGRAMS lJ 81 r Figure 1 J 8 Blower and Lighter GT...
Page 103: ...I I lJ 82 1973 OPEL SERVICE MANUAL Figure lJ 9 indicator Lights and Gauges Opel 1900 Manta...
Page 104: ...I I WIRING DIAGRAMS IJ 83 I Figure 1 J 10 Indicator Lights and Gauges Ratlye...
Page 106: ...EhMB SWITCH R GHiDOOR 301J12...
Page 107: ...1 J 86 1973 OPEL SERVICE MANUAL i Figure 1 J l 3 Headlamps Opel 1900...
Page 108: ...I I I WIRING DIAGRAMS lJ 87 Figure lJ 14 Headlamps Manta...
Page 109: ...1 J 88 1973 OPEL SERVICE MANUAL I 1 Figure lJ 15 Headlamp and Fog Lights Rallye...
Page 110: ...301516...
Page 111: ......
Page 113: ...1 J 92 1973 OPEL SERVICE MANUAL d 5 Figure 1 19 Starting lgniiion and Charging Opel 1900 Manta...
Page 114: ...I I WIRING DIAGRAMS lJ 93 I Figure lJ 20 Starting Ignition and Charging GT...
Page 115: ...1 J 94 1973 OPEL SERVICE MANUAL i I I Figure lJ 21 Instrument Panel GT...
Page 116: ...I I 1 I WIRING DIAGRAMS lJ 95 Figure lJ 22 A C Generator and Regulator All Models...
Page 117: ...301523...
Page 119: ...I I I 10 RED AMP GAGE 301J25...
Page 120: ...WIRING DIAGRAMS lJ 99 Figure lJ 26 Seat Belt Warning System Automatic Transmissionl GT...
Page 121: ...lJ 100 1973 OPEL SERVICES MANUAL I Figure 1 J 27 Heated Rear Glass Opel 1900 Manta...
Page 122: ...I WIRING DIAGRAMS 1 J 101...
Page 123: ...1 J 102 1973 OPEL 9ER IC MANUAL...
Page 128: ...SPECIAL BODY TOOLS GENERAL INFORMATION 2A 5 W REGULATOR INING INSTALLER J 21828 J 21549 2A 1...
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Page 259: ......
Page 285: ...5C 26 1973 OPEL SERVICE MANUAL...
Page 322: ...ENGINE MECHANICAL AND MOUNTS 6A 31...
Page 350: ...CARBURETOR AND THROTTLE LINKAGE 6E 59 Figure 6E 37 Carburetor Specifications...
Page 361: ......
Page 372: ...Figure 7A 9 Exploded View of Clutch Pedal and Housing...
Page 423: ...Third Clutch Applied Low Band Released...
Page 424: ...AUTOMATIC TRANSMISSION C 63...
Page 425: ...712 64 1973 OPEL SERVICE MANUAL HYDRAULIC OPERATION I r n...
Page 427: ...7C 66 1973 OPEL SERVICE MANUAL...
Page 428: ......
Page 429: ...7C 68 1973 OPEL SERVICE MANUAL II II I...
Page 431: ...7C 70 1973 OPEL SERVICE MANUAL d...
Page 433: ...7C 72 1973 OPEL SERVICE MANUAL...
Page 435: ...7C 74 1973 OPEL SERVICE MANUAL...
Page 437: ...712 76 1973 OPEL SERVICE MANUAL...
Page 439: ...a 1973 OPEL SERVICE MANUAL...
Page 441: ...7C 80 1973 OPEL SERVICE MANUAL...
Page 499: ...7C 138 1973 OPEL SERVICE MANUAL 4 5 I Figure 7C 234 Special Tools Automatic Transmission 7C223...
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Page 596: ...98 88 1973 OPEL SERVICE MANUAL Figure gB 165 Special Tools...
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