Chevrolet Workshop Service and Repair Manuals

Starter Motor: Electrical Specifications

Starter Motor Specifications-Manual Transaxle Equipped Vehicles

Brush Length-Standard........................................................................................................................................................................................17.0 (0.67 in)
Brush Length-Limit (Minimum)...................................................................................................................................................................11.5 mm (0.45 in)
Brush Spring Tension-Standard.......................................................................................................................................................................1.6 kg(3.53 lbs)
Brush Spring Tension-Limit (Minimum).........................................................................................................................................................1.0 kg(2.20 lbs)
Commutator Insulation Depth-Standard......................................................................................................................................0.4-0.6 mm (0.016-0.024 in)
Commutator Insulation Depth-Limit (Minimum)......................................................................................................................................(0.2 mm) (0.008 in)
Commutator Outside Diameter-Standard...................................................................................................................................................32.0 mm (1.260 in)
Commutator Outside Diameter-Limit (Minimum)....................................................................................................................................31.4 mm) (1.236 in)
Commutator Run-Out-Standard..................................................................................................................................................................0.05 mm (0.002 in)
Commutator Run-Out-Limit (Maximum)....................................................................................................................................................0.40 mm(0.016 in)
Direction of Rotation.........................................................................................................................................................Clockwise (as viewed from pinion)
Number of Pinion Teeth..........................................................................................................................................................................................................8
Output 1.0L (VIN 6)................................................................................................................................................................................................0.8 k watts
Output 1.3L (VIN 9)................................................................................................................................................................................................0.9 k watts
Rating......................................................................................................................................................................................................................30 seconds
Solenoid Operating Voltage...........................................................................................................................................................................8 volts maximum
Starter Motor Current Draw-No-load......................................................................................................................................60 Amps maximum at 11 Volts
Starter Motor Current Draw-Load 
(2.7 N.m / 23.9 lb in. of torque)...............................................................................................................................................150 Amps maximum at 9 Volts
Starter Motor Current Draw-Locked Rotor 
(8.6 N.m / 76.1 lb in. of torque)..............................................................................................................................................380 Amps maximum at 5 Volts 
Voltage........................................................................................................................................................................................................................12 Volts

Starter Motor Specifications-A/T Equipped Vehicles

Brush Length-Standard.................................................................................................................................................................................17.5 mm (0.69 in)
Brush Length-Limit (Minimum)...................................................................................................................................................................12.0 mm (0.47 in)
Brush Spring Tension-Standard......................................................................................................................................................................2.1 kg (4.63 lbs)
Brush Spring Tension-Limit (Minimum)..........................................................................................................................................................0.7kg(1.54 lbs)
Commutator Insulation Depth-Standard....................................................................................................................................0.5-0.8 mm (0.020-0.0031 in)
Commutator Insulation Depth-Limit (Minimum).........................................................................................................................................0.2 mm (0.008 in)
Commutator Outside Diameter-Standard...................................................................................................................................................29.4 mm (1.157 in)
Commutator Outside Diameter-Limit (Minimum)......................................................................................................................................28.8 mm (1.134 in)
Commutator Run-Out-Standard .................................................................................................................................................................0.05 mm (0.002 in)
Commutator Run-Out-Limit (Maximum)...................................................................................................................................................0.40 mm (0.016 in)
Direction of Rotation.........................................................................................................................................................Clockwise (as viewed from pinion)
Number of Pinion Teeth..........................................................................................................................................................................................................8
Output......................................................................................................................................................................................................................1.2 k watts
Rating......................................................................................................................................................................................................................30 seconds
Solenoid Operating Voltage...........................................................................................................................................................................8 volts maximum
Starter Motor Current Draw -No-Load.........................................................................................................................................50-75 amps max. at 11 volts
Starter Motor Current Draw-Load 
(9.1 N.m / 80.5 lb in of torque)...............................................................................................................................................................300 amps at 7.7 volts
Starter Motor Current Draw-Locked 
Rotor (18.6 N.m /13.7 lb ft of torque)...............................................................................................................................................780 amps max. at 4 volts
Voltage.........................................................................................................................................................................................................................12 volts