Toyota Tundra. Manual — part 1908

Fig. 407: Measuring Warpage Of Contact Surface Of Cylinder Head Using Straight Edge &
Feeler Gauge (LH)
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

2

INSPECT EXHAUST MANIFOLD SUB-ASSEMBLY RH

a

Using a precision straightedge and feeler gauge, measure the warpage of the contact surface of the
cylinder head

Maximum warpage: 0.50 mm (0.0197 in.)

If the warpage is greater than the maximum, replace the exhaust manifold

Fig. 408: Measuring Warpage Of Contact Surface Of Cylinder Head Using Straight Edge &
Feeler Gauge (RH)
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

3

INSPECT CYLINDER HEAD SET BOLT

a

Using a vernier caliper, measure the thread outside diameter of the bolt

Measuring point

ITEM SPECIFICATION

Item

Specified Condition

Intake side

82 mm (3 23 in )

Exhaust side

86 mm (3 39 in )

2009 Toyota Tundra

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

Fig. 409: Identifying Cylinder Head Set Bolt Length
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

Standard outside diameter: 9.810 to 9.960 mm (0.386 to 0.392 in.)

Minimum outside diameter: 9.700 mm (0.382 in.)

If the outside diameter is less than the minimum, replace the set bolt

HINT:

If a visual check reveals no excessively thin areas, check the center of the bolt (see Fig. 409 ) and
find the area that has the lowest diameter

4

INSPECT CAMSHAFT SUB-ASSEMBLY

a

Inspect the circle runout

1

Place the camshaft on V-blocks

2

Using a dial indicator, measure the circle runout at the center journal

Maximum circle runout: 0.03 mm (0.00118 in.)

If the circle runout is greater than the maximum, replace the camshaft

Fig. 410: Using Dial Indicator To Measure Circle Runout Center Journal
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

b

Inspect the cam lobes

1

Using a micrometer, measure the cam lobe height

2009 Toyota Tundra

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

Standard cam lobe height

CAM LOBE HEIGHT SPECIFICATION

Fig. 411: Using Micrometer To Measure Cam Lobe Height
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

Minimum cam lobe height

CAM LOBE HEIGHT SPECIFICATION

If the cam lobe height is less than the minimum, replace the camshaft

c

Inspect the camshaft journals

1

Using a micrometer, measure the journal diameter

Standard journal diameter: 26.954 to 26.970 mm (1.061 to 1.062 in.)

If the journal diameter is not as specified, check the oil clearance

Item

Specified Condition

Intake

42 61 to 42 71 mm (1 6776 to

1 6815 in )

Exhaust

42 63 to 42 73 mm (1 6783 to

1 6823 in )

Item

Specified Condition

Intake 42 46 mm (1 6717 in )

Exhaust 42 48 mm (1 6724 in )

2009 Toyota Tundra

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

Fig. 412: Using Micrometer To Measure Journal Diameter
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

2

Using a micrometer, measure the journal diameter for the camshaft timing tube

Standard journal diameter: 30.984 to 31.000 mm (1.2198 to 1.2204 in.)

Fig. 413: Using Micrometer To Measure Journal Diameter For Camshaft Timing Tube
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

5

INSPECT CAMSHAFT TIMING TUBE ASSEMBLY

a

Using a micrometer, measure the journal diameter

Standard journal diameter: 39.955 to 39.964 mm (1.5730 to 1.5734 in.)

If the journal diameter is not as specified, check the oil clearance If necessary, replace the camshaft
and cylinder head

2009 Toyota Tundra

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