Toyota Tundra. Manual — part 2030

Fig. 293: Identifying Cylinder Head Set Bolt Measuring Point
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

HINT:

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

2

INSPECT NO. 1 VALVE ROCKER ARM SUB-ASSEMBLY

a

Turn the roller by hand to check that it turns smoothly

If the roller does not turn smoothly, replace the valve rocker arm

Fig. 294: Checking No. 1 Valve Rocker Arm Sub-Assembly
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

3

INSPECT VALVE LASH ADJUSTER ASSEMBLY

a

Place the lash adjuster into a container full of new engine oil

b

Insert SST's tip into the lash adjuster's plunger and use the tip to press down on the check ball
inside the plunger

SST 09276-75010

NOTE:



Keep the adjuster free from dirt and foreign objects.



Use only clean engine oil.

2009 Toyota Tundra

2009 ENGINE Engine Mechanical (3UR-FE) - Tundra

Fig. 295: Checking Plunger Movement Using SST
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

c

Squeeze SST and the lash adjuster together to move the plunger up and down 5 to 6 times

d

Check the movement of the plunger and bleed air

OK: Plunger moves up and down.

e

After bleeding the air, remove SST Then try to quickly and firmly press the plunger with your
fingers

OK: Plunger can be pressed 3 times.

If the plunger can still be compressed after pressing it 3 times, replace the lash adjuster with a new
one

4

INSPECT CAMSHAFT SUB-ASSEMBLY

a

Inspect the camshaft for runout

1

Place the camshaft on V-blocks

2

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

Maximum circle runout: 0.04 mm (0.00157 in.)

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

HINT:

Check the oil clearance after replacing the camshaft

Fig. 296: Checking Camshaft Runout
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

NOTE:

When bleeding high-pressure air from the compression chamber,
make sure that the tip of SST is actually pressing the check ball as
shown in the illustration. If the check ball is not pressed, air will not
bleed.

2009 Toyota Tundra

2009 ENGINE Engine Mechanical (3UR-FE) - Tundra

b

Using a micrometer, measure the cam lobe height

Standard cam lobe height

STANDARD CAM LOBE HEIGHT SPECIFICATIONS

Minimum cam lobe height

MINIMUM CAM LOBE HEIGHT SPECIFICATIONS

Fig. 297: Measuring Cam Lobe Height
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

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

c

Using a micrometer, measure the journal diameter

Standard journal diameter

STANDARD JOURNAL DIAMETER SPECIFICATIONS

Item

Specified Condition

Intake 44 291 to 44 441 mm (1 744 to 1 750 in )

Exhaust 44 196 to 44 346 mm (1 740 to 1 746 in )

Item

Specified Condition

Intake 44 241 mm (1 742 in )

Exhaust 44 146 mm (1 738 in )

Item

Specified Condition

No 1 journal 29 956 to 29 970 mm (1 1793 to 1 1799 in )

Other journals 25 959 to 25 975 mm (1 0220 to 1 0226 in )

2009 Toyota Tundra

2009 ENGINE Engine Mechanical (3UR-FE) - Tundra

Fig. 298: Measuring Journal Diameter
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

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

5

INSPECT CAMSHAFT TIMING GEAR

a

Install the camshaft bearing cap (see REASSEMBLY )

HINT:

Only install the intake camshaft

b

Install the camshaft housing (see REASSEMBLY )

c

Apply a light coat of engine oil on the camshaft and camshaft timing gear

d

Using the hexagonal portion of the camshaft, align and attach the knock pin of the camshaft with
the pin hole of the camshaft timing gear

NOTE:



Do not forcefully push in the camshaft timing gear. This may
cause the camshaft knock pin tip to damage the installation
surface of the camshaft timing gear.

Fig. 299: Identifying Camshaft Timing Gear Key Groove And
Straight Pin
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.



Do not loosen or remove the 3 bolts shown in the illustration. If

2009 Toyota Tundra

2009 ENGINE Engine Mechanical (3UR-FE) - Tundra