Toyota Tundra. Manual — part 1875

Fig. 207: Using Dial Indicator To Measure Backlash (Bank 2)
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

Standard backlash: 0.020 to 0.200 mm (0.000787 to 0.00787 in.)

Maximum backlash: 0.30 mm (0.0118 in.)

If the backlash is greater than the maximum, replace the drive gear and No 2 camshaft

3

Remove the No 1 camshaft and No 2 camshaft

4

Remove the camshaft timing tube from the camshaft

5

Remove the drive gear from the camshaft timing tube

REPLACEMENT

1

REPLACE INTAKE VALVE GUIDE BUSH

a

Gradually heat the cylinder head to approximately 80 to 100°C (176 to 212°F)

b

Place the cylinder head on wooden blocks

Fig. 208: Heating Cylinder Head
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

c

Using SST and a hammer, tap out the guide bush

SST 09201-10000 (09201-01050), 09950-70010 (09951-07100)

2009 Toyota Tundra

2009 ENGINE Engine Mechanical (2UZ-FE) - Tundra

Fig. 209: Tapping Out Guide Bush Using SST & Hammer
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

d

Using a caliper gauge, measure the bush bore diameter of the cylinder head

Standard cylinder bore diameter: 10.285 to 10.306 mm (0.405 to 0.406 in.)

If the bush bore diameter of the cylinder head is between 10 285 to 10 306 mm (0 405 to 0 406 in ),
proceed to the next step

If the bush bore diameter of the cylinder head is 10 356 mm (0 408 in ) or more, replace the
cylinder head

Fig. 210: Using Caliper Gauge To Measure Bush Bore Diameter Of Cylinder Head
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

e

Select a new guide bush (STD or O/S 0 05)

HINT:

Different bushes are used for the intake and exhaust

2009 Toyota Tundra

2009 ENGINE Engine Mechanical (2UZ-FE) - Tundra

Fig. 211: Identifying Intake And Exhaust Bushes Length
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

Standard bush length

STANDARD BUSH LENGTH SPECIFICATION TABLE

f

Machine the bush bore diameter of the cylinder head side to the diameter of the selected guide
bush

Bush bore diameter

BUSH BORE DIAMETER SPECIFICATION

g

Gradually heat the cylinder head to approximately 80 to 100°C (176 to 212°F)

h

Using SST and a hammer, tap in a new guide bush to the specified protrusion height

SST 09201-10000 (09201-01050), 09950-70010 (09951-07100)

Standard protrusion height: 9.2 to 9.8 mm (0.362 to 0.386 in.)

Item Specified Condition

Intake

34 5 mm (1 36 in )

Exhaust 40 5 mm (1 59 in )

Bush Size

Specified Condition

Use STD

10 285 to 10 306 mm (0 405 to 0 406 in )

Use O/S 0 05 10 335 to 10 356 mm (0 407 to 0 408 in )

2009 Toyota Tundra

2009 ENGINE Engine Mechanical (2UZ-FE) - Tundra

Fig. 212: Tapping In Guide Bush Using SST & Hammer
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

i

Using a sharp 5 5 mm reamer, ream the guide bush to obtain the standard clearance between the
guide bush and valve stem

Fig. 213: Reaming Guide Bush Using Sharp Reamer
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

2

REPLACE EXHAUST VALVE GUIDE BUSH

a

Gradually heat the cylinder head to approximately 80 to 100°C (176 to 212°F)

b

Place the cylinder head on wooden blocks

Fig. 214: Heating Cylinder Head
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

c

Using SST and a hammer, tap out the guide bush

SST 09201-10000 (09201-01050), 09950-70010 (09951-07100)

2009 Toyota Tundra

2009 ENGINE Engine Mechanical (2UZ-FE) - Tundra