PROCEDURE
INSPECT STARTER ASSEMBLY
Note
Perform each of the following tests within 3 to 5 seconds.
Perform pull-in test.
Disconnect the field coil lead wire from terminal C.
| *1 | Terminal C |
| *2 | Terminal 50 |
Connect the battery to the starter magnetic switch as shown in the illustration and check that the pinion gear is extended.
| *1 | Terminal C |
| *2 | Terminal 50 |
Perform holding test.
Check that the pinion gear does not return inward after the cable of terminal C is disconnected.
| *1 | Terminal C |
| *2 | Terminal 50 |
Inspect the clutch pinion gear return.
Move the pinion gear toward the armature.
Perform the operation test without any load.
Connect the field coil lead wire to terminal C.
Clamp the starter in a vise.
Note
Do not clamp the vise to tightly.
| *1 | Terminal 30 |
| *2 | Terminal 50 |
Connect the battery and ammeter to the starter as shown in the illustration.
Check that the starter rotates smoothly and steadily with the clutch pinion gear extended. Measure the current according to the value(s) in the table below.
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| Battery positive terminal - Terminal 30 - Terminal 50 | 11.5 V | Below 190 A |
If the result is not as specified, replace the starter assembly.
INSPECT MAGNET STARTER SWITCH ASSEMBLY
Check the plunger.
Install the plunger and spring onto the switch body.
Push in the plunger, then check that it returns quickly to its original position.
If necessary, replace the magnet starter switch assembly.
| *1 | Terminal 50 |
| *2 | Terminal C |
Check the pull-in coil for an open circuit.
Measure the resistance according to the value(s) in the table below.
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| Terminal 50 - Terminal C | Always | Below 1 Ω |
If the standard is not met, replace the magnet starter switch assembly.
| *1 | Terminal 50 |
| *2 | Switch Body |
Measure the resistance according to the value(s) in the table below.
Using an ohmmeter, measure the resistance between terminals 50 and the switch body.
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| Terminal 50 - Switch body | Always | Below 1.5 Ω |
If the standard is not met, replace the magnet starter switch assembly.
INSPECT STARTER ARMATURE ASSEMBLY
| *1 | Commutator |
Check the commutator for an open circuit.
Measure the resistance according to the value(s) in the table below.
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| Segment - Segment | Always | Below 1 Ω |
If the standard is not met, replace the starter armature assembly.
| *1 | Armature |
| *2 | Commutator |
Check the commutator for ground.
Measure the resistance according to the value(s) in the table below.
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| Commutator - Armature coil core | Always | 10 kΩ or higher |
If the standard is not met, replace the starter armature assembly.
Check the appearance.
If the surface is dirty or burnt, restore the surface with 400-grit sandpaper on a lathe.
Check the commutator circuit for runout.
Place the commutator on V-blocks.
Using a dial indicator, measure the circle runout.
| Standard runout |
|---|
| 0.02 mm (0.0008 in.) |
| Maximum runout |
|---|
| 0.05 mm (0.0020 in.) |
If the runout is greater than the maximum, replace the armature assembly.
Using a vernier caliper, measure the commutator diameter.
| Standard diameter |
|---|
| 29 mm (1.142 in.) |
| Minimum diameter |
|---|
| 28 mm (1.102 in.) |
If the diameter is less than the minimum, replace the armature assembly.
INSPECT STARTER BRUSH HOLDER ASSEMBLY
Remove the claw of the spring, then remove the 4 brushes.
Using a vernier caliper, measure the brush length.
| Standard length |
|---|
| 15.5 mm (0.610 in.) |
| Minimum length |
|---|
| 12 mm (0.472 in.) |
If the length is less than the minimum, replace the starter brush holder assembly.
| *1 | Brush | *2 | Spring |
| *3 | Length | - | - |
Check the brush holder.
Measure the resistance according to the value(s) in the table below.
| Standard resistance | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
If the standard is not met, replace the starter brush holder assembly.
INSPECT STARTER CENTER BEARING CLUTCH SUB-ASSEMBLY
Inspect the gear teeth on the planetary gear, internal gear and starter clutch for wear and damage.
If damaged, replace the gear or clutch assembly. Also check the planetary gear for wear and damage.
| *a | Free |
| *b | Lock |
Inspect the starter clutch.
Rotate the clutch pinion gear clockwise and check that it turns freely. Try to rotate the clutch pinion gear counterclockwise and check that it locks.
If necessary, replace the starter center bearing clutch sub-assembly.