Toyota Tundra. Manual — part 2031

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

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

Fig. 301: Installing Camshaft Timing Gear
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

g

Remove the camshaft bearing cap (see DISASSEMBLY )

h

Check the lock of the camshaft timing gear

1

Clamp the camshaft in a vise, and confirm that the camshaft timing 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

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. 300: Identifying Flange Bolt And Straight Pin
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

NOTE:

Be careful not to damage the camshaft.

2009 Toyota Tundra

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

Fig. 302: Identifying Advanced And Retard Side Path Of Cam Journal
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

Fig. 303: Applying Air Pressure To Two Broken Paths
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

4

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

HINT:

This operation releases the lock pin for the most retarded position

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. 304: Checking Camshaft Timing Gear Revolves
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

5

When the camshaft timing gear reaches the most advanced position, release the air pressure
from the retard side path and advance side path, in that order

j

Check for smooth rotation

1

Turn the camshaft timing gear within its movable range (21°) 2 or 3 times, but do not turn it
to the most retarded position Make sure that the gear turns smoothly

k

Check the lock in the most retarded position

1

Confirm that the camshaft timing gear is locked at the most retarded position

l

Install the camshaft bearing cap (see REASSEMBLY )

HINT:

Only install the intake camshaft

m

Install the camshaft housing (see REASSEMBLY )

n

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

NOTE:

Do not release the air pressure from the advance side path first.
The gear may abruptly shift in the retard direction and break the
lock pin.

NOTE:

Do not use air pressure to perform the smooth rotation check.

2009 Toyota Tundra

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

Fig. 305: Loosening Camshaft Bolt
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

o

Remove the camshaft bearing cap (see DISASSEMBLY )

p

Remove the flange bolt and camshaft timing gear

Fig. 306: Identifying Flange Bolt And Straight Pin
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

6

INSPECT CAMSHAFT TIMING EXHAUST GEAR

a

Install the camshaft bearing cap (see REASSEMBLY )

HINT:

Only install the exhaust camshaft

b

Install the camshaft housing (see REASSEMBLY )

c

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

NOTE:



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

2009 Toyota Tundra

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