Charging System

Alternator Brush Inspection

CAUTION: When replacing the brushes, use only a rosin core type solder or solder joints will corrode.
Nippondenso type:
1. Remove the end cover, then take out the brush holder by removing its 2 screws.

2. Measure the length of the brushes with a vernier caliper.

Alternator Brush Length:
Standard : 10.5 mm (0.41 in) Service Limit: 5.5 mm (0.22 in)

If the brushes are not within the service limit, replace them.

Mitsubishi type:
1 . Separate the drive end housing from the rear housing as described on page 23-120.

2. Separate the rear housing from the stator/rectifier assembly by removing the 4 screws and the terminal nut from the rear housing (see page 23-120).

3. Measure the length of the brushes with a vernier caliper.
Alternator Brush Length:
Standard :22.0 mm (0.90 in) Service Limit: 8.0 mm (0.31 in)