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Electrical System Specs - Utility Vehicles

Willys Truck Electrical Illustration

 L6-226F4-134
Model: 12-Volt 6-Volt 12-Volt 6-Volt
Battery:
Make Auto-Lite Auto-Lite Auto-Lite Auto-Lite
Model 11-HS 1M-100 11-HS 1M-100
Plates per Cell 9 15 9 15
Ampere-Hour Rating 50 100 50 100
Terminal Ground Negative Negative Negative Negative
Specifiic Gravity:
Fully Charged 1.26 1.26 1.26 1.26
Recharge at 1.225 1.225 1.225 1.225
Height 9 7/32" [23,4 cm.] 8 5/8" [21,9 cm.] 9 7/32" [23,4 cm.] 8 5/8" [21,9 cm.]
Length 10 15/64" [26,6 cm.] 8 23/32" [22,1 cm.] 10 15/64" [26,6 cm.] 8 23/32" [22,1 cm.]
Width 6 25/32" [17,2 cm.] 7" [17,7 cm.] 6 25/32" [17,2 cm.] 7" [17,7 cm.]
Battery Location Under Hood Left Side Under Hood Left Side Under Hood Left Side Under Hood Left Side
 
Generator (Auto-Lite): 12-Volt 6-Volt 12-Volt 6-Volt
Make Auto-Lite Auto-Lite Auto-Lite Auto-Lite
Model - Early GJP-7202-B GGW-4801-EN GJP-7202-A GGW-480J-D
Model - Late GJP-7202-B GGW-7404-B GJP-7402-A GGW-7404-A
Ground Polarity Negative Negative Negative Negative
Controlled Output 35 amp. 45 amp. 35 amp. 45 amp.
Control CV Regulator CV Regulator CV Regulator CV Regulator
Ratio - Generator to Crankshaft:
Revolutions 1. 75 to 1 1. 75 to 1 1.5 to 1 1.5 to 1
Cut-in Engine rpm 758 758 883 883
Rotation; Drive End Clockwise Clockwise Clockwise Clockwise
Armature End Play .003" to .010" [0,076 a 0,254 mm.] .003" to .010" [0,076 a 0,254 mm.] .003" to .010" [0,076 a 0,254 mm.] .003" to .010" [0,076 a 0,254 mm.]
Brushes 2 2 2 2
Brush Spring Tension 18 to 36 oz [0,5 a 1 kg.] 18 to 36 oz [0,5 a 1 kg.] 18 to 36 oz [0,5 a 1 kg.] 18 to 36 oz [0,5 a 1 kg.]
Bearing - Drive End Ball Ball Ball Ball
Bearing - Commutator End Bronze Bronze Bronze Bronze
 
Generator (Delco): 12-Volt 6-Volt 12-Volt 6-Volt
Make Delco Delco Delco Delco
Model 1102096 1102811 1102096 1102811
Type Shunt (Ventilated) Shunt (Ventilated) Shunt (Ventilated) Shunt (Ventilated)
Rotation; Drive End Clockwise Clockwise Clockwise Clockwise
Armature; End Play .005" [0,127 mm.] .005" [0,127 mm.] .005" [0,127 mm.] .005" [0,127 mm.]
Brushes 2 2 2 2
Brush Spring Tension 28 oz. [0,7 kg.] 28 oz. [0,7 kg.] 28 oz. [0,7 kg.] 28 oz. [0,7 kg.]
Bearing Drive End Ball Ball Ball Ball
Bearing; Commutator End Bronze Bronze Bronze Bronze
 
Regulator (Auto-Lite): 12-Volt 6-Volt 12-Volt 6-Volt
Make Auto-Lite Auto-Lite Auto-Lite Auto-Lite
Model - Early VRX-6009-B VBE-6105-A VRX-6009-B VBE-6105-A
Model - Late VB0-4201E-4A VB0-4601-C VB0-4201E-4A VB0-4601-C
Type Vibrator Vibrator Vibrator Vibrator
Cutout Relay Closing:
Voltage @ Generator rpm. 12.6 to 13.6 @ 1325 6.3 to 6.8 @ 1000 12.6 to 13 @ 1325 6.3 to 6.8 @ 1000
Reverse Current to Open 3 to 5 amp. 4 to 6 amp. 3 to 5 amp. 4 to 6 amp.
Regulated Voltage 14.3 to 14.7 7.1 to 7.3 14.3 to 14.7 7.1 to 7.3
Regulated Current 39 amp. max. 49 amp. max. 39 amp. max. 49 amp. max.
 
Regulator (Delco): 12-Volt 6-Volt 12-Volt 6-Volt
Make Delco Delco Delco Delco
Model 1972029 1972063 1972029 1972063
Type Vibrator Vibrator Vibrator Vibrator
Cutout Relay Closing Voltage 11.8 to 13.5 5.9 to 6.7 11.8 to 13.5 5.9 to 6.7
Regulated Voltage 13.8 to 14.8 6.9 to 7.4 13.8 to 14.8 6.9 to 7.4
Regulated Current 27 to 33 42 to 47 27 to 33 42 to 47

 

 L6-226F4-134
Model: 12-Volt 6-Volt 12-Volt 6-Volt
Starting Motor
(Auto-Lite): 12-Volt 6-Volt 12-Volt 6-Volt
Make Auto-Lite Auto-Lite Auto-Lite Auto-Lite
Model - Early MDM-6006 MCH-6210 MDM-6005 MCH-6203
Model - Late MDU-7003 MCH-6210 MDU-7004 MCH-6215
Rotation - Drive End Clockwise Clockwise Clockwise Clockwise
Engine Cranking Speed 200 rpm. @ room temperature 185 rpm. 200 rpm. @ room temperature 185 rpm.
Armature End Play .005" min. [0,127 mm.] .005" to .030" [0,127 a 0,762 mm.] .005" min. [0,127 mm.] .005" to .030" [0,127 a 0,762 mm.]
Brushes 4 4 4 4
Brush Spring Tension 31 to 47 oz. [0,9 a 1,3 kg.] 42 to 53 oz. [1,9 a 1,5 kg.] 31 to 47 oz. [0,9 a 1,3 kg.] 42 to 53 oz. [1,9 a 1,5 kg.]
Bearings 3 Bronze 3 Bronze 3 Bronze 3 Bronze
Lock Test:
Temperature 70°F. [21 °C.] 70°F. [21 °C.] 70°F. [21 °C.] 70°F. [21 °C.]
Amps. (max.) 280 335 280 335
Volts 4.0 2.0 4.0 2.0
Stall Torque (min.) 6.2 6.0 6.2 6.0
No Load Test:        
Temperature 70°F. [21 °C.] 70°F. [21 °C.] 70°F. [21 °C.] 70°F. [21 °C.]
Amps. (max.) 50 65 65 50
Volts 10 5 10 5
RPM. (min.) 5300 4300 5300 4300
Control Switch Solenoid Solenoid Solenoid Solenoid
Drive:
Type Bendix Folo-Thru Bendix Folo-Thru Bendix Folo-Thru Bendix Folo-Thru
Pinion Meshes Front Front Front Front
No. of Teeth - Pinion 9 9 9 9
No. of Teeth - Flywheel 130 130 129 129
Flywheel Tooth Face Width .500" [12,7 mm.] .500" [12,7 mm.] .375 fl [9,5 mm.) .375 fl [9,5 mm.)
 
Starter Motor (Delco): 12-Volt 6-Volt 12-Volt 6-Volt
Make Delco Delco Delco Delco
Model 1107747 1108078 1107746 1108077
Rotation - Drive End Clockwise Clockwise Clockwise Clockwise
Engine Cranking Speed 185 rpm. 185 rpm. 185 rpm. 185 rpm.
Armature End Play .005" to .050" [0,127 a 1,27 mm.] .005" to .050" [0,127 a 1,27 mm.] .005" to .050" [0,127 a 1,27 mm.] .005" to .050" [0,127 a 1,27 mm.]
Brushes 4 4 4 4
Brush Spring Tension 24 oz. min. ( 680 gr.) 35 oz. min. ( 992 gr.) 24 oz. min. ( 680 gr.) 35 oz. min. ( 992 gr.)
Bearings 3 Bronze 3 Bronze 3 Bronze 3 Bronze
Lock Test:
Temperature 70°F. [21 °C.] 70°F. [21 °C.] 70°F. [21 °C.] 70°F. [21 °C.]
Amps 435 600 435 600
Volts 5.8 3.0 5.8 3.0
Torque 10.5 lb-ft. [1,4 kg-m.] 15 lb-ft. [2,0 kg-m.] 10.5 lb-ft. [1,4 kg-m.] 15 lb-ft. [2,0 kg-m.]
No Load Test:
Temperature 70°F. [21 °C.] 70°F. [21 °C.] 70°F. [21 °C.] 70°F. [21 °C.]
Amps 75 60 75 60
Volts 10.3 5.0 10.3 5.0
RPM (min.) 6900 6000 6900 6000
Coil: 12-Volt 6-Volt 12-Volt 6-Volt
Make Auto-Lite Auto-Lite Auto-Lite Auto-Lite
Model - Early CAG 4002-A CAL 4001-A CAG 4002-A CAL 4001-A
Model - Late 200564 200488 200564 200488
Amperes:
Engine Stopped 2.8-2.9 @ 12.5V 5@ 6.3V 2.8-2.9 @ 12.SV 5@ 6.3V
Engine Idling 2.8-2.9 2.5 2.8-2.9  

 

 L6-226F4-134
Model: 12-Volt 6-Volt 12-Volt 6-Volt
Distributor (Auto-Lite):
Make Auto-Lite Auto-Lite Auto-Lite Auto-Lite
Model - Early IAT-4206B IAT-4206B IAT-4204A IAT-4204A
Model - Late IAT-4404A IAT-4404A IAT-4405 IAT-4405
Type Advance Centrifugal Centrifugal Centrifugal Centrifugal
Firing Order 1-5-3-6-2-4 1-5-3-6-2-4 1-3-4-2 1-3-4-2
Breaker Point Gap .020" [0,508 mm.] .020" [0,508 mm.] .020" [0,508 mm.] .020" [0,508 mm.]
Breaker Arm Tension 17 to 20 oz. [482 a 567 gr.] 17 to 20 oz. [482 a 567 gr.] 17 to 20 oz. [482 a 567 gr.] 17 to 20 oz. [482 a 567 gr.]
Cam Angle 39° 39° 42° 42°
Max. Auto Advance 7.5°@ 1700 rpm. 7.5°@ 1700 rpm. 11 ° @ 1700 rpm. 11 ° @ 1700 rpm.
Max. Vacuum Advance 5° @ 15" hg. [38 cm.] 5° @ 15" hg. [38 cm.] 6° @ 14" hg. [35 cm.] 6° @ 14" hg. [35 cm.]
Condensor Capacity .21 to .25 mfd. .21 to .25 mfd. .21 to .25 mfd. .21 to .25 mfd.
 
Distributor (Delco):
Make Delco Delco Delco Delco
Model 1110249 1110249 1110255 1110255
Spark Advance; Centrifugal:
Start 0° @ 375 rpm. 0° @ 375 rpm. 0° @ 425 rpm. 0° @ 425 rpm.
Maximum 5° to 7° @ 1300 rpm 5° to 7° @ 1300 rpm 10° to 12° @ 1950 rpm. 10° to 12° @ 1950 rpm.
Spark Advance Vacuum
Start 0° @ 10" Hg [25 cm.] 0° @ 10" Hg [25 cm.] 0° @ 5" Hg [12 cm.] 0° @ 5" Hg [12 cm.]
Maximum 5° @ 15" Hg [38 cm.] 5° @ 15" Hg [38 cm.] 6° @ 14" Hg [35 cm.] 6° @ 14" Hg [35 cm.]
Breaker Gap .022" [0,599 mm.] .022" [0,599 mm.] .022" [0,599 mm.] .022" [0,599 mm.]
Cam Angle 31° to 37° 31° to 37° 25° to 34° 25° to 34°
Breaker Arm Tension 19 to 23 oz. [538 a 652 gr.] 19 to 23 oz. [538 a 652 gr.] 19 to 23 oz. [538 a 652 gr.] 19 to 23 oz. [538 a 652 gr.]
Condensor Capacity .2 mfd. .2 mfd. .2 mfd. .2 mfd.
 
Timing:
Crankshaft 5° BTC @ Idle 5° BTC @ Idle 5° BTC @ Idle 5° BTC @ Idle
Mark Location Vibration Damper Vibration Damper Crankshaft Pulley Crankshaft Pulley
Firing Order 1-5-3-6-2-4 1-5-3-6-2-4 1-3-4-2 1-3-4-2
 
Spark Plugs:
Make and Model Auto-Lite A7 Auto-Lite A7 Auto-Lite A7 Auto-Lite A7
Thread Champion J8 Champion J8 Champion J8 Champion J8
Gap 14 mm. 14 mm. 14 mm. 14 mm.
 
Lamp Bulb Trade Numbers:
Volts 12 6 12 6
Headlights 6012 6006 6012 6006
Parking Lights 67 63 67 63
Park and Directional Signal 1176 1158 1176 1158
Stop, Tail, and Dir. Signal 1034 1158 1034 1158
License (Wagon) 67 63 67 63
Indicator Lamps:
Headlight Beam 53 51 53 51
Directional Signal 53 51 53 51
Charge 53 51 53 51
Oil Pressure 53 51 53 51
Instrument Lamp 57 55 57 55
Dome Lamp 1003 87 1003 87
Radio Dial Lamp 1891 44 1891 87
Flasher, Directional Signal 524 P229D 524 P229D
Fuse Data:
Directional Signal SFE 9 SFE 14 SFE 9 SFE 14
Overdrive SFE 14 SFE 20 SFE 14 SFE 20
Heater SFE 9 SFE 14 SFE 9 SFE 14
Radio ABC 7 1/2 SFE 9   SFE 9

* Learn more about electrical from the Service Manual for Jeep Utility Vehicles, pages 151-153