GM Service Manual Online
For 1990-2009 cars only

Application

Specification

Metric

English

Charging System

  • Brush Length - Standard

10.5 mm

0.413 in

  • Brush Length - Minimum

1.5 mm

0.059 in

  • Direction of Rotation

Clockwise (as viewed from pulley side)

  • Maximum Generator Output

80 Amps

  • Maximum Generator Speed

18,00 RPM

  • No-Load Generator Speed

1100 RPM

  • Normal Operating Voltage

12 Volts

  • Polarity

Negative Ground

  • Regulator Voltage

13.5-15.1 volts

  • Rotor Slip Ring Diameter - Standard

14.2-14.4 mm

0.559-0.567 in

  • Rotor Slip Ring Diameter - Minimum

12.8 mm

0.504 in

  • Standard Rotor Resistance at 20°C (68°F)

2.7-3.1ohms

  • Temperature Range

30-90°C

-22-194°F

Drive Belt Tension

  • Drive Belt Deflection - New

5-7 mm at 10 kg

0.20-0.27 in at 22 lbs

  • Drive Belt Deflection - Used

6-8 mm at 10 kg

0.24-0.31 in at 22 lbs

Starting System

  • Brush Length - Standard

15.5 mm

0.610 in

  • Brush Length - Minimum

10.0 mm

0.394 in

  • Brush Spring Tension - Standard

1.8-2.4 kg

4.0-5.3 lbs

  • Brush Spring Tension - Minimum

1.2 kg

2.6 lbs

  • Commutator Insulation Depth - Standard

0.60 mm

0.024 in

  • Commutator Insulation Depth - Minimum

0.20 mm

0.008 in

  • Commutator Outside Diameter - Standard

30 mm

1.18 in

  • Commutator Outside Diameter - Minimum

29 mm

1.14 in

  • Commutator Runout - Standard

0.05 mm

0.002 in

  • Direction of Rotation

Clockwise (as viewed from pinion)

  • Number of Pinion Teeth

9

  • Output

1.4 kwatts

  • Rating

30 seconds

  • Starter Current Draw, no load

90 Amps at 11.5 Volts

  • Starter Current Draw, load, manual transaxle (9.1 N·m/80.5 lb in of torque)

300 Amps at 7.7 Volts

  • Starter Current Draw, load, automatic transaxle (10.4 N·m/92 lb in of torque)

300 Amps at 7.7 Volts

  • Locked Rotor - Manual Transaxle (18.6 N·m/13.8 lb ft)

780 Amps at 4 Volts

  • Locked Rotor - Automatic Transaxle (25.5 N·m/18.8 lb ft)

980 Amps at 4 Volts

  • Starter Solenoid Operating Voltage

8 Volts minimum

  • Solenoid Contact Plate Wear - Maximum

0.9 mm

0.035 in

  • Voltage

12 Volts