Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSSUBARU2002FORESTER BASEREPAIR AND DIAGNOSIS (SINGLE PAGE)ELECTRICALSTARTERSBENCH TESTINGARMATURE
2002 Subaru Forester Base
Bench Testing: Armature
2002 Subaru Forester BaseSECTION Armature
- Check commutator for any sign of burns of rough surfaces or stepped wear. If wear is of a minor nature, correct it by using sandpaper.
- Check the commutator run-out and replace if it exceeds the limit. See Fig 1 . See STARTER SPECIFICATIONS table under STARTER SPECIFICATIONS.
- Check the depth of segment mold. See Fig 2 . See STARTER SPECIFICATIONS table under STARTER SPECIFICATIONS.
- Check armature for short-circuit by placing it on growler tester. See Fig 3 . Hold a iron sheet against armature core while slowly rotating armature. A short-circuited armature will cause the iron sheet to vibrate and to be attracted to core. If the iron sheet is attracted or vibrates, the armature, which is short-circuited, must be replaced or repaired.
- Using a circuit tester, touch one probe to the commutator segment and the other to shaft. See Fig 4 . If there is no continuity, it is normal. If there is continuity armature is grounded. Replace armature if it is grounded.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.