LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Subaru >> 2019 >> WRX Base >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 16 (Starting System & Charging System (STI)) >> Generator >> Disassembly
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Section 16 (Starting System & Charging System (STI)): Generator: Disassembly

WARNING: This page is about a different variant/trim than selected.
  1. Remove the four through-bolts.
    G07910081Courtesy of SUBARU OF AMERICA, INC.
  2. Use a drier to heat the rear cover (A) portion to 50°C (122°F).
    G07910082Courtesy of SUBARU OF AMERICA, INC.
  3. Insert the end of a flat tip screwdriver into the gap between stator core and front cover. Pry them apart to disassemble.
    G13258296Courtesy of SUBARU OF AMERICA, INC.
  4. Using a vise, support the rotor and remove the pulley nut, then remove the rotor from the front cover.
    CAUTION: When holding the rotor with a vise, place aluminum plates or wooden pieces on the vise jaws to prevent rotor from damage.
    G07910084Courtesy of SUBARU OF AMERICA, INC.
    G13258298Courtesy of SUBARU OF AMERICA, INC.
  5. Use the following procedures to remove the ball bearings.
    1. Remove the bolt, and then detach the bearing retainer.
      G07910086Courtesy of SUBARU OF AMERICA, INC.
    2. Firmly attach an appropriate tool (such as a correct size socket wrench) to the bearing inner race.
      G07910087Courtesy of SUBARU OF AMERICA, INC.
    3. Use the press to push the ball bearings out from the front cover.
  6. Using the bearing puller, remove the bearings from the rotor.
    G07910088Courtesy of SUBARU OF AMERICA, INC.
  7. Disconnect the connection between the rectifier and stator coil, then remove the stator coil.
    CAUTION: The rectifier is easily damaged by heat. Do not allow a 180 - 270 W soldering iron to contact the terminals for 5 seconds or more at a time.
    G07910089Courtesy of SUBARU OF AMERICA, INC.
  8. Use the following procedures to remove the IC regulator.
    1. Remove the screws which secure the IC regulator to the rear cover.
      G07910090Courtesy of SUBARU OF AMERICA, INC.
    2. Disconnect the connection between the IC regulator and rectifier, then remove the IC regulator.
    G07910091Courtesy of SUBARU OF AMERICA, INC.
  9. Use the following procedures to remove the brush.
    1. Remove the cover A.
      G13258305Courtesy of SUBARU OF AMERICA, INC.
    2. Remove the cover B.
      G13258306Courtesy of SUBARU OF AMERICA, INC.
    3. Disconnect the connection and remove the brush.
    G07910094Courtesy of SUBARU OF AMERICA, INC.
  10. Remove the rectifier as follows.
  1. Remove the bolts which secure the rectifier.
    G04992980Courtesy of SUBARU OF AMERICA, INC.
  2. Remove the cover on terminal B.
    G04992981Courtesy of SUBARU OF AMERICA, INC.
  3. Remove the nuts of terminal B, then remove the rectifier.
G04992982Courtesy of SUBARU OF AMERICA, INC.