Alternator Disassembly
- Test the alternator and regulator before you remove them (see CHARGING SYSTEM INDICATOR CIRCUIT TROUBLESHOOTING ).
- Remove the alternator (see ALTERNATOR REMOVAL AND INSTALLATION ).
- Remove the four through bolts.
- Heat the rear bearing seat with a 1,000 W hair drier for about 5 minutes (129-140 °F, 50-60 °C).
- 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.
- Separate the rear housing (A) and drive-end housing (B) with the stator (C) attached to the rear housing.
- 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.
- Remove the rotor using a puller as shown.
- 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.
- Remove the rear bearing using the puller as shown.
- Use a hand press to install a new rear bearing. Apply pressure only on the inner race to avoid damaging the bearing.
- Remove the front bearing retainer plate.
- Support the drive-end housing in a vise, and drive out the front bearing with a brass drift and hammer.
- With a hammer and the special tools, install a new front bearing in the drive-end housing.