Diesel Data: Automotive Repair

Starter Brush: Testing and Inspection

Brush and brush holder




1. Check continuity between each insulated brush and plate with ohmmeter. Replace brush holder if there is continuity.

2. Measure the force of brush spring with spring balance.

Brush spring force: 2.0 lb (8.8 N)




3. Replace spring if force is insufficient.

Brush




1. If brush is worn to the wear limit, replace all brushes.

Standard: 0.67 in (17 mm)

Wear limit: 0.45 in (11.5 mm)