INSPECT STARTER ARMATURE ASSEMBLY
Using an ohmmeter, check that there is continuity between the segments of the commutator.
If there is no continuity between any segment, replace the starter armature.
Using an ohmmeter, check the resistance between the commutator and armature coil core.
| Standard resistance |
|---|
| 10 kΩ or higher |
If the result is not as specified, replace the starter armature.
Check for the commutator circuit runout.
Place the commutator on V-blocks.
Using a dial indicator, measure the circle runout.
| Maximum runout |
|---|
| 0.05 mm (0.002 in.) |
If the runout is greater than the maximum, replace the starter armature.
Using vernier calipers, measure the commutator diameter.
| Standard diameter |
|---|
| 36.0 mm (1.417 in.) |
| Minimum diameter |
|---|
| 35.0 mm (1.378 in.) |
If the diameter is less than the minimum, replace the starter armature.
Check that the undercut portion between the segments is free of foreign objects and measure its depth.
| Standard undercut depth |
|---|
| 0.7 mm (0.028 in.) |
| Minimum undercut depth |
|---|
| 0.2 mm (0.008 in.) |
If the undercut depth is less than the minimum, correct it with a hacksaw blade.
INSPECT STARTER YOKE ASSEMBLY
Using an ohmmeter, check that there is continuity between the terminal C wire and brushes.
If there is no continuity, replace the starter yoke assembly.
Using an ohmmeter, check the resistance between the starter yoke body and brushes.
| Standard resistance |
|---|
| 10 kΩ or higher |
If the result is not as specified, replace the starter yoke.
INSPECT STARTER BRUSH HOLDER ASSEMBLY
Using vernier calipers, measure the brush length.
| Standard length |
|---|
| 20.5 mm (0.807 in.) |
| Minimum length |
|---|
| 11.0 mm (0.433 in.) |
If the length is less than the minimum, replace the brush holder and starter yoke.
Check the pull scale reading as soon as the brush spring is separated from the brush.
| Standard spring load |
|---|
| 26 to 45 N (2.7 to 4.6 kgf, 5.8 to 10.1 lbf) |
| Minimum spring load |
|---|
| 12.4 N (1.3 kgf, 2.8 lbf) |
If the spring load is less than the minimum, replace the brush holder assembly.
Using an ohmmeter, measure the resistance between the positive (+) and negative (-) brush holders.
| Standard resistance |
|---|
| 10 kΩ or higher |
If the result is not as specified, repair or replace the brush holder assembly.
INSPECT STARTER CLUTCH SUB-ASSEMBLY
Turn the clutch pinion gear clockwise and check that it turns freely. Try to turn the clutch pinion gear counterclockwise and check that it locks.
If necessary, replace the starter clutch.
INSPECT MAGNET STARTER SWITCH ASSEMBLY
Using an ohmmeter, check that there is continuity between terminals 50 and C.
If there is no continuity, replace the magnet starter switch assembly.
Using an ohmmeter, check that there is continuity between terminal 50 and the magnet switch body.
If there is no continuity, replace the magnet starter switch assembly.