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.
2004 Subaru Baja Base, AutomaticFACTORY OEM SERVICE PROCEDURE
Bench Testing: Rotor
- Inspect the slip rings for contamination or any roughness of the sliding surface. Repair the slip ring surface using a lathe or sand paper.
- Measure the slip ring outer diameter. See ROTOR ASSEMBLY SPECIFICATIONS table under GENERATOR SPECIFICATIONS. If the slip ring is worn replace rotor assembly.
- Check the resistance between slip rings using circuit tester. See Fig 1 .
- Check the continuity between slip ring and rotor core or shaft. See Fig 2 . If resistance is 1 ohm or less, the rotor coil is grounded, and so replace the rotor assembly.
- Check the rear ball bearing. Replace if it is noisy or if the rotor does not turn smoothly.
Factory Service Tools
Use the Manual With the Right Hardware
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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.
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