Impreza GT F4-2.5L Turbo (2009)
Measure the brush spring force with a spring scale.
Replace the brush holder if below the service limit.
Brush spring force:
Standard 15.9-19.5 N (1.62-1.99 kgf, 3.57-4.38 lbf) (When new)
Service limit 2.5 N (0.25 kgf, 0.56 lbf)
5. SWITCH ASSEMBLY
Using a circuit tester (set to ohm ), check that there is continuity between terminals S and M, and between terminal S and ground.
Also check to be sure there is no continuity between M terminal and B.
6. SWITCH ASSEMBLY OPERATION
1. Using a lead wire, connect the S terminal of switch assembly to positive terminal of battery, and starter body to ground terminal of battery. The
pinion should be forced endwise on shaft.
NOTE: With the pinion forced endwise on shaft, starter motor can sometimes rotate because current flows, through pull.in coil, to motor. This
is not a problem.
2. Disconnect the connector from M terminal. Then using a lead wire, connect the positive terminal of battery and M terminal and ground
terminal to starter body.
In this test set up, the pinion should return to its original position even when it is pulled out with a screwdriver.
7. PERFORMANCE TEST
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.
