Alternator Brush: Testing and Inspection

Alternator Brush Inspection:

1. Remove the end cover, then take out the brush holder by removing its two screws.
2. Measure the length of the brushes with a vernier caliper.

Alternator Brush Length:
Standard: 10.5 mm (0.41 in)
Service Limit: 1.5 mm (0.06 in)

NOTE: If the brushes are less than the service limit, replace the alternator brush assembly.