Impreza Coupe FWD F4-1820cc 1.8L SOHC (1995)
Starter Motor: Testing and Inspection
Test
1. SWITCH ASSEMBLY OPERATION
1. Connect terminal S of switch assembly to positive terminal of battery with a lead wire, and starter body to ground terminal of battery. Pinion
should be forced endwise on shaft.
CAUTION: With 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 connector from terminal M, and connect positive terminal of battery and terminal M using a lead wire and ground terminal to
starter body.
In this test set up, pinion should return to its original position even when it is pulled out with a screwdriver.
2. PINION GAP
1. With pinion forced endwise on shaft, as outlined in step 1) above, measure pinion gap.
Pinion gap: 0.5 - 2.0 mm (0.020 - 0.079 in)
If motor is running with the pinion forced endwise on the shaft, disconnect connector from terminal M of switch assembly and connect
terminal M to ground terminal (-) of battery with a lead wire. Next, gently push pinion back with your fingertips and measure pinion gap.
2. If pinion gap is outside specified range, remove or add number of adjustment washers used on the mounting surface of switch assembly until
correct pinion gap is obtained.
3. 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.
