Toyota Tundra. Manual — part 2032

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 exhaust
gear with the bolt

Torque: 100 N*m (1020 kgf*cm, 74 ft.*lbf)

Fig. 309: Installing Camshaft Timing Exhaust Gear

Fig. 307: Identifying Straight Pin And Key Groove
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.



Do not loosen or remove the 4 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 exhaust gear assembly with a new one.

Fig. 308: Identifying Flange Bolt
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

2009 Toyota Tundra

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

Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

g

Remove the camshaft bearing cap (see DISASSEMBLY )

h

Check the camshaft timing exhaust gear lock

1

Make sure that the camshaft timing exhaust gear is locked

i

Release the lock pin

1

Cover the 4 oil paths of the cam journal with vinyl tape as shown in the illustration

Fig. 310: Identifying Oil Paths
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

2

Break through the tape of the advance side path Then break through the tape of the retard
side path on the opposite side of the advanced side path, as shown in the illustration

3

Apply approximately 200 kPa (2 0 kgf/cm

2

, 29 psi) of air pressure to the two broken paths

(the advance side path and the retard side path)

NOTE:

Cover the paths with a piece of cloth when applying pressure to
keep oil from splashing.

2009 Toyota Tundra

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

Fig. 311: Applying Air Pressure To Broken Paths
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

4

Check that the camshaft timing exhaust gear turns in the retard direction when reducing the
air pressure applied to the advance side path

HINT:

The lock pin is released and the camshaft timing exhaust gear turns in the retard direction

2009 Toyota Tundra

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

Fig. 312: Checking Camshaft Timing Exhaust Gear Turns In Retard Direction
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

5

When the camshaft timing exhaust gear moves to the most retarded position, release the air
pressure from the advance side path, and then release the air pressure from the retard side
path

j

Check for smooth rotation

1

Turn the camshaft timing exhaust gear within its movable range (18 5°) 2 or 3 times, but do
not turn it to the most advanced position Make sure that the gear turns smoothly

k

Check the lock at the most advanced position

1

Make sure that the camshaft timing exhaust gear is locked at the most advanced position

l

Install the camshaft bearing cap (see REASSEMBLY )

HINT:

Only install the exhaust camshaft

m

Install the camshaft housing (see REASSEMBLY )

n

Hold the hexagonal portion of the camshaft with a wrench and loosen the bolt

NOTE:

Be sure to release the air pressure from the advance side path
first. If the air pressure of the retard side path is released first,
the camshaft timing exhaust gear may abruptly shift in the
advance direction and break the lock pin or other parts.

NOTE:

When the air pressure is released from the advance side path
and then from the retard side path, the gear automatically
returns to the most advanced position due to the advance assist
spring operation, and locks. Gradually release the air pressure
from the retard side path before performing the smooth rotation
check.

2009 Toyota Tundra

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