Toyota Tundra. Manual — part 2243

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

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.

Fig. 294: Inspecting Valve Lash Adjuster Assembly
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-FBE) - Tundra

Maximum circle runout:

0.04 mm (0.00157 in.)

If the circle runout is more than the maximum, replace the camshaft.

HINT:

Check the oil clearance after replacing the camshaft.

Fig. 295: Checking Camshaft Runout
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

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

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.)

2009 Toyota Tundra

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

Fig. 296: 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 SPECIFICATION

Fig. 297: 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.

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-FBE) - Tundra

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.

e. Apply a light coat of engine oil on the threads and under the head of the bolt.

f. Using a wrench to hold the hexagonal portion of the camshaft, install the camshaft timing gear with

the bolt.

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. 298: Identifying Key Groove
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.



Do not loosen or remove the 3 bolts shown in the illustration. If
any of them are loosened or removed, the backlash of the gear
in the timing tube will go out of adjustment. In this case, replace
the camshaft timing gear assembly with a new one.

Fig. 299: Identifying Flange Bolt And Knock Pin
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

2009 Toyota Tundra

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