Supra L6-2997cc 3.0L DOHC MFI (1998)
4. INSPECT BRUSHES
Using a vernier caliper, measure the brush length.
Standard length: 15.5 mm (0.610 in.)
Minimum length. 10.0 mm (0.394 in.)
If the length is less than minimum, replace the brush holder and field frame.
5. INSPECT BRUSH SPRINGS
Check the brush spring load. Take the pull scale reading the instant the brush spring separates from the brush.
Standard spring installed load:
17.6-23.5 N (1.8-2.4 kgf, 3.9-5.3 lbf)
Minimum spring installed load:
11.8 N (1.2 kgf, 2.6 lbf)
If the installed load is less than minimum, replace the brush springs.
6. INSPECT BRUSH HOLDER
Check the brush holder insulator. Using an ohmmeter, check that there is no continuity between the positive (+) and negative (-) brush holders.
If there is continuity, repair or replace the brush holder.
7. INSPECT CLUTCH AND GEAR
a. Check the gear teeth on the pinion gear, idle gear and the clutch assembly for wear or damage.
If damaged, replace the gear or clutch assembly.
If damaged, also check the drive plate ring gear for wear or damage.
