2001 Subaru Outback Base, AutomaticFACTORY OEM SERVICE PROCEDURE

Bench Testing: Rotor

  1. Measure slip ring outer wear. If worn greater than .04" (1.0 mm) for models equipped with 4-cylinder engine, or .024 (.6 mm) on models equipped with 6-cylinder, replace rotor. See SLIP RING STANDARD DIAMETER & WEAR LIMITΒ  table. Inspect slip rings for contamination or roughness. Polish with No. 500 or 600 emery paper or crocus cloth.
    SLIP RING STANDARD DIAMETER & WEAR LIMIT

    Application In. (mm)
    Slip Ring Outer Diameter
    4-cylinder
    Standard 1.063 (27)
    Wear Limit 1.024 (26)
    6-cylinder
    Standard .894 (22.7)
    Wear Limit .870 (22.1)
  2. Check continuity between rotor slip rings. If continuity does not exist, replace rotor. Connect ohmmeter between each slip ring and rotor. If continuity exists, replace rotor assembly. Check rotor bearing for noise and ease of rotation when turning. Replace as necessary.
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.

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