Toyota Tundra. Manual — part 1777

2

Slide the camshaft timing gear and separate the No 1 chain from the camshaft timing gear

Fig. 34: Sliding Camshaft Timing Gear
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

3

Rotate the No 1 camshaft counterclockwise using a wrench so that the cam lobes of the No
1 cylinder face downward as shown below

Fig. 35: Rotating No. 1 Camshaft Using Wrench
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

with the wrench.



Do not disassemble the camshaft timing gear.

Fig. 33: Holding Hexagonal Portion Of No. 1 Camshaft With
Wrench
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

2009 Toyota Tundra

2009 ENGINE Engine Mechanical (1GR-FE) - Tundra

4

Uniformly loosen and remove the 8 bearing cap bolts in the sequence shown below

5

Remove the 4 bearing caps

Fig. 36: Identifying Bearing Cap Bolt Loosening Sequence
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

6

Remove the camshaft timing gear set bolt with the No 1 camshaft lifted up, and then remove
the No 1 camshaft and camshaft timing gear with No 2 chain

Fig. 37: Identifying Camshaft And Camshaft Timing Gear
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

7

Tie the No 1 chain with a string as shown below

Fig. 38: Tying No. 1 Chain With String

NOTE:

Be careful not to drop anything inside the timing chain cover.

2009 Toyota Tundra

2009 ENGINE Engine Mechanical (1GR-FE) - Tundra

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

f

Remove the No 4 camshaft

1

While pushing down the No 3 chain tensioner, insert a pin of 1 0 mm (0 0394 in ) into the
hole to fix it

Fig. 39: Inserting Pin Into Hole
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

2

Hold the hexagonal portion of the No 4 camshaft with a wrench, and remove the camshaft
timing sprocket set bolt

3

Separate the camshaft timing sprocket from the No 4 camshaft

Fig. 40: Holding Hexagonal Portion Of No. 4 Camshaft With Wrench
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

NOTE:

As the thrust clearance of the camshaft is small, the camshaft must
be kept level while it is being removed. If the camshaft is not kept
level, the portion of the cylinder head which receives the shaft thrust
may crack or be damaged, causing the camshaft to seize or break. To
avoid this, the following steps should be carried out.

NOTE:

Be careful not to damage the cylinder head and valve lifter with
the wrench.

2009 Toyota Tundra

2009 ENGINE Engine Mechanical (1GR-FE) - Tundra

4

Uniformly loosen and remove the 8 bearing cap bolts in the sequence shown below

5

Remove the 4 bearing caps and No 4 camshaft

Fig. 41: Identifying Bearing Cap Bolt Loosening Sequence
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

g

Remove the No 3 chain tensioner

1

Remove the No 3 chain tensioner bolt, No 3 chain tensioner and camshaft timing sprocket

Fig. 42: Locating No. 3 Chain Tensioner Bolt
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

h

Remove the No 3 camshaft

1

Using several steps, loosen and remove the 8 bearing cap bolts uniformly in the sequence
shown below

2

Remove the 4 bearing caps

NOTE:

As the thrust clearance of the camshaft is small, the camshaft must
be kept level while it is being removed. If the camshaft is not kept
level, the portion of the cylinder head which receives the shaft thrust
may crack or be damaged, causing the camshaft to seize or break. To
avoid this, the following steps should be carried out.

2009 Toyota Tundra

2009 ENGINE Engine Mechanical (1GR-FE) - Tundra