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Alternator Disassembly

  1. Test the alternator and regulator before you remove them (see CHARGING SYSTEM INDICATOR CIRCUIT TROUBLESHOOTING  ).
  2. Remove the alternator (see ALTERNATOR REMOVAL AND INSTALLATION  ).
  3. Remove the four through bolts.
    Fig 1: Removing Bolts
    G03673533Courtesy of AMERICAN HONDA MOTOR CO., INC.
  4. Heat the rear bearing seat with a 1,000 W hair drier for about 5 minutes (129-140 °F, 50-60 °C).
    Fig 2: Heating Rear Bearing Seat
    G03673534Courtesy of AMERICAN HONDA MOTOR CO., INC.
  5. Separate the rear housing from the drive-end housing by inserting a flat-tip screwdriver into the openings and prying them apart.
    NOTE: Be careful not to damage the stator with the tip of the screwdriver.
    Fig 3: Separating Rear Housing From Drive-End Housing
    G03673535Courtesy of AMERICAN HONDA MOTOR CO., INC.
  6. Separate the rear housing (A) and drive-end housing (B) with the stator (C) attached to the rear housing.
    Fig 4: Separating Rear Housing And Drive-end Housing
    G03673536Courtesy of AMERICAN HONDA MOTOR CO., INC.
  7. If you are not replacing the front bearing and/or rear bearing, go to step  1. Clamp the rotor in a soft-jawed vise, then remove the pulley locknut.
    Fig 5: Removing Pulley Locknut
    G03673537Courtesy of AMERICAN HONDA MOTOR CO., INC.
  8. Remove the rotor using a puller as shown.
    Fig 6: Removing Rotor
    G03673538Courtesy of AMERICAN HONDA MOTOR CO., INC.
  9. Inspect the rotor shaft for scoring, and inspect the bearing journal surface in the drive-end housing for seizure marks.
    • If either the rotor or drive-end housing is damaged, replace the alternator.
    • If both the rotor and the drive-end housing are OK, go to step 10.
  10. Remove the rear bearing using the puller as shown.
    Fig 7: Removing rear bearing
    G03673539Courtesy of AMERICAN HONDA MOTOR CO., INC.
  11. Use a hand press to install a new rear bearing. Apply pressure only on the inner race to avoid damaging the bearing.
    Fig 8: Installing New Rear Bearing
    G03673540Courtesy of AMERICAN HONDA MOTOR CO., INC.
  12. Remove the front bearing retainer plate.
    Fig 9: Removing Front Bearing Retainer Plate
    G03673541Courtesy of AMERICAN HONDA MOTOR CO., INC.
  13. Support the drive-end housing in a vise, and drive out the front bearing with a brass drift and hammer.
    Fig 10: Supporting Drive-End Housing In A Vise
    G03673542Courtesy of AMERICAN HONDA MOTOR CO., INC.
  14. With a hammer and the special tools, install a new front bearing in the drive-end housing.
    Fig 11: Installing New Front Bearing In Drive-End Housing
    G03673543Courtesy of AMERICAN HONDA MOTOR CO., INC.