Toyota Tundra. Manual — part 2334

CHART

Fig. 20: Measuring Resistance Between Starter Armature Segment
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

If the result is not as specified, replace the armature assembly

2

Measure the resistance according to the value(s) in the table below

Standard resistance

STARTER ARMATURE TESTER CONNECTION SPECIFIED CONDITION
CHART

Fig. 21: Measuring Resistance Between Starter Armature Segment And Coil Core
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

If the result is not as specified, replace the armature assembly

b

Check the commutator surface for dirt or bums If the surface is dirty or burnt, smooth the surface
with 400-grit sandpaper or a lathe

c

Using a vernier caliper, measure the protrusion length

Tester Connection Condition Specified Condition

Segments

Always

Below 1 ohms

Tester Connection Condition Specified Condition

Segment - Coil core Always

10 kohms or higher

2009 Toyota Tundra

2009 ENGINE Starting (1GR-FE) - Tundra

Standard length: 3.1 mm (0.122 in.)

Maximum length: 3.8 mm (0.150 in.)

If the length is greater than the maximum, replace the armature assembly

Fig. 22: Measuring Protrusion Length
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

3

INSPECT STARTER COMMUTATOR END FRAME ASSEMBLY

2009 Toyota Tundra

2009 ENGINE Starting (1GR-FE) - Tundra

a

Check the brush length

1

Using a vernier caliper, measure the brush length

Standard length: 9.0 mm (0.354 in.)

Minimum length: 4.0 mm (0.158 in.)

If the length is less than the minimum, replace the starter commutator end frame assembly

Fig. 23: Measuring Brash Holder Length
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

b

Check the resistance

1

Measure the resistance according to the value(s) in the table below

Standard resistance

STARTER COMMUTATOR END FRAME TESTER CONNECTION SPECIFIED
CONDITION CHART

Fig. 24: Measuring Resistance Between Brash Holder
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

If the result is not as specified, repair or replace the commutator end frame assembly

Tester Connection

Condition Specified Condition

Positive (+) brush - Negative (-) brush Always

10 kohms or higher

2009 Toyota Tundra

2009 ENGINE Starting (1GR-FE) - Tundra

4

INSPECT STARTER CENTER BEARING CLUTCH SUB-ASSEMBLY

a

Check the gear teeth on the planetary gear, internal gear and starter clutch for wear or damage

If any of the gears is damaged, replace the center bearing clutch sub-assembly

b

Check the starter clutch pinion gear

Fig. 25: Checking Clutch Pinion Gear
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

1

Hold the starter clutch and rotate the pinion gear clockwise, and check that it turns freely Try
to rotate the pinion gear counterclockwise and check that it locks

If necessary, replace the center bearing clutch sub-assembly

5

INSPECT REPAIR SERVICE STARTER KIT

a

Check the plunger

Fig. 26: Checking Plunger
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

1

Push in the plunger, and check that it returns quickly to its original position

If the result is not as specified, replace the repair service starter kit

b

Inspect the pull-in coil

2009 Toyota Tundra

2009 ENGINE Starting (1GR-FE) - Tundra