The starter should be submitted to performance tests whenever it has been overhauled, to assure its satisfactory performance when installed on the engine.
Three performance tests, no-load test, load test, and lock test, are presented here; however, if the load test and lock test cannot be performed, carry out at least the no-load test.
For these performance tests, use the circuit shown in figure.
Scheme 22
- Variable resistor
- Magnetic switch
- Starter body
No-load test
With switch on, adjust the variable resistor to obtain 11 V, take the ammeter reading, and then measure the starter speed. Compare these values with the specifications.
No-load test (standards)
Voltage/Current
Saab 9-2X 2.5i Linear M/T
MAX. 11 V/95 A
Saab 9-2X 2.0T Aero M/T
MAX. 11 V/90 A
A/T
MAX. 11 V/90 A
Rotating speed
Saab 9-2X 2.5i Linear M/T
More than 2,500 RPM
Saab 9-2X 2.0T Aero M/T
More than 2,860 RPM
A/T
More than 2,000 RPM
Load test
Apply the specified braking torque to starter. The condition is satisfactory if the current draw and starter speed are within the specifications.
Load test (standards)
Voltage/Load
Saab 9-2X 2.5i Linear M/T
8 V/8.5 Nm (0.87 kgf-m, 6.3 ft-lb)
Saab 9-2X 2.0T Aero M/T
8 V/9.3 Nm (0.95 kgf-m, 6.9 ft-lb)
A/T
8 V/9.8 Nm (1.0 kgf-m, 7.2 ft-lb)
Current/Speed
Saab 9-2X 2.5i Linear M/T
More than 280 A/870 RPM
Saab 9-2X 2.0T Aero M/T
More than 280 A/860 RPM
A/T
More than 280 A/1000 RPM
Lock test
With the starter stalled, or not rotating, measure the torque developed and current draw when the voltage is adjusted to the specified voltage.
Lock test (standards)
Voltage/Current
Saab 9-2X 2.5i Linear M/T
Less than 4 V/680 A
Saab 9-2X 2.0T Aero M/T
Less than 4 V/515 A
A/T
Less than 3.5 V/960 A
Torque
Saab 9-2X 2.5i Linear M/T
17 Nm (1.73 kgf-m, 12.5 ft -lb)
Saab 9-2X 2.0T Aero M/T
16 Nm (1.63 kgf-m, 11.8 ft -lb)
A/T
31 Nm (3.16 kgf-m, 22.9 ft -lb)