Tacoma 4WD V6-4.0L (1GR-FE) (2006)
c. Inspect the slip rings.
1. Check that the slip rings are not rough or scored. If rough or scored, replace the rotor.
2. Using vernier calipers, measure the slip ring diameter.
Standard diameter: 14.2 to 14.4 mm (0.559 to 0.567 in.)
Minimum diameter: 14.0 mm (0.551 in.)
If the diameter is less than the minimum, replace the rotor.
3. INSPECT GENERATOR ROTOR BEARING
a. Check the bearing whether it is rough or worn. If necessary, replace the generator rotor.