Electrical System Specs - CJ-3B

Battery: 6-Volt 12-Volt
Make Auto-Lite Auto-Lite
Model IM-100 11-HS
Plates per Cell 15 9
Ampere-hour Rating 100 50
Terminal Ground Negative Negative
Specific Gravity:
Fully Charged 1.260 1.260
Recharge at 1.225 1.225
Height 8 5/8" 9 7/32"
Length 8 23/32" 10 15/64"
Width 7" 6 25/32"
Battery Location: Under hood - Right side Under hood - Right side
Generator:
Make Auto-Lite Auto-Lite
Model  GGW 4801, GGW 7404  GJC 7002, GJP 7202, GJP 7402A
Ground Polarity Negative Negative
Controlled Output:
30 amp. GJC 7002
35 amp. GDZ 4817, GDZ 6001 GJP 7202, GJP 7402A
45 amp. GGW 4801, GGW 7404
Rotation - Drive End Clockwise Clockwise
Ratio - Generator to Crankshaft Revolutions 1.5:1 1.5:1
Cut-in Engine rpm 883 883
Control CV Regulator CV Regulator
Armature End Play .003" to .010" .003" to .010"
Brushes 2 2
Brush Spring Tension:
35 to 53 oz. GDZ 4817, GDZ 6001, GGW 4801
18 to 36 oz. GGW 7404A GJC 7002, GJP 7202, GJP 7402A
Bearing - Drive End Ball Ball
Bearing - Commutator End Bronze Bronze
GENERATOR:
Make Delco-Remy Delco-Remy
Model 11022811 1102096
Type Shunt (Ventilated) Shunt (Ventilated)
Rotation - Drive End Clockwise Clockwise
Armature End Play .005" [0,13mm.] .005" [0,13mm.]
Brushes 2 2
Brush Spring Tension 28 oz. 28 oz.
Bearing - Drive End Ball Ball
Bearing - Commutator End Bronze Bronze
REGULATOR:
Make Auto-Lite Auto-Lite
Model:
For GDZ 4817, GDZ 6001 VRP-6003, VRP-4007, VBO-4601
For GGW 4801, GGW 7004A VBO-4601C
For GJC 7002 VRX-6009
For GJC 7202, GJP 7402A VBO-4201E-4A
Type Vibrator Vibrator
Cutout Relay:
Closing Voltage @ Generator rpm 6.3 to 6.8 @ 1000 12.6 to 13.6 @ 1325
Reverse Current to Open 4 to 6 amp. 3 to 5 amp.
Regulated Voltage 7.1 to 7.3 14.3 to 14.7
Regulated Current 49 amp. max. 39 amp. Max.
REGULATOR:
Make Delco-Remy Delco-Remy
Model 1972063 1972029
Type Vibrator Vibrator
Cutout Relay Closing Voltage 5.9 to 6.7 11.8 to 13.5
Regulated Voltage 6.9 to 7.4 13.8 to 14.8
Regulated Current 42 to 47 27 to 33
STARTING MOTOR:
Make Auto-Lite Auto-Lite
Model:
CJ-3B early MZ-4162
CJ-3B (late) MCH-6207, MCH-6203 MDM-6005, MDU-7004
CJ-3B (current) MCH-6215 MDU-7004
Rotation - Drive End Clockwise Clockwise
Engine Cranking Speed 185 rpm. @ room temperature 200 rpm. @ room temperature
Armature End Play .005" to .030" .005" min.
Brushes 4 4
Brush Spring Tension 42 to 53 oz. 31 to 47 oz.
Bearings 3 Bronze 3 Bronze
Lock Test:
Temperature 70° F. (21° C.) 70° F. (21° C.)
Amps (max.) 335
MDM-6005 170
MDU-7004 280
Volts 2.0 4.0
Volts 2.0 4.0
Stall Torque: (min.) 6.0 lb-ft.
MDM-6005 1.5 lb-ft.
MDU-7004 6.2 lb-ft.
No Load Test:
Temperature 70° F. (21° C.) 70° F. (21° C.)
Amps (max.) 65 50
Volts 5 10
RPM (min.) 4300
MDM-6005 4400
MDU-7004 5300
Control Switch Solenoid Solenoid
Drive:
Type Bendix Folo-Thru Bendix Folo-Thru
Pinion Meshes Front Front
No. of Teeth - Pinion 9 9
No. of Teeth - Flywheel 129 129
Flywheel Tooth Face Width .375" .375"
STARTING MOTOR:
Make Delco-Remy Delco-Remy
Model 1108077 1107746
Rotation - Drive End Clockwise Clockwise
Engine Cranking Speed 185 rpm. 185 rpm.
Armature End Play .005" to .050" .005" to .050"
Brushes 4 4
Brush Spring Tension (min.) 24 oz. 35 oz.
Bearings 3 Bronze 3 Bronze
Lock Test:
Temperature 70° F. (21° C.) 70° F. (21° C.)
Amps 600 435
Volts 5.0 10.3
RPM (min.) 6000 6900
Control Switch Solenoid Solenoid
COIL:
Make Auto-Lite Auto-Lite
Model:
CR-3033XE
All Models After CJ-2A CR-6009, CAL-4001, CAL-4001-A, 200576, 200577, 200488 CAF-4003, CAG-4002, 200562, 200574, 200564
Amperes:
Engine Stopped 5 @ 6.3 V 2. to 82.9 @ 12.5V
Engine Idling 2.5 2.8 to 2.9
DISTRIBUTOR:
Make Delco-Remy Delco-Remy
Model 1112432 1112432
Spark Advance - Centrifugal
Start 0° @ 425 rpm. 0° @ 425 rpm.
Maximum 10° to 12 ° @ 1950 rpm. 10° to 12 ° @ 1950 rpm.
Breaker Gap .022" .022"
Cam Angle 25° to 34° 25° to 34°
Breaker Arm Tension 19 to 23 oz. 19 to 23 oz.
Condenser Capacity .2 mfd. .2 mfd.
TIMING:
Crankshaft 5° BTC @ Idle 5° BTC @ Idle
Mark Location
CJ-3B Crankshaft Pulley Crankshaft Pulley
Firing Order 1-3-4-2 1-3-4-2
SPARK PLUGS
Make and Model Champion J8 Champion J8
Thread 14 mm. 14 mm.
Thread Reach 3/8" 3/8"
Gap .030" .030"
LAMP BULB TRADE NUMBERS:
Headlights 5040-S or 6006 5400-S or 6012
Parking Lights 63 67
Park and Directional Signal 1158 1176
Stop, Tail and Directional Signal 1158 1034
Indicator Lamps:
Headlight Beam 51 53
Directional Signal 51 53
Charge 51 53
Oil Pressure 51 53
Instrument Lamp 55 57
Flasher, Directional Signal P229D 524
Fuse Data:
Directional Signal SFE 14 SFE 9
Heater SFE 14 SFE 9

* Learn more about electrical from the Service Manual for Universal Jeep Vehicles page 152

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