Toyota Tundra. Manual — part 1815

Fig. 260: Identifying No. 2 Chain Vibration Dampers
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

38

REMOVE NO. 1 CHAIN

a

Remove the No 1 chain

39

REMOVE CRANKSHAFT TIMING SPROCKET

a

Remove the crankshaft timing sprocket

Fig. 261: Locating Crankshaft Timing Sprocket
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

40

REMOVE NO. 1 CHAIN VIBRATION DAMPER

a

Remove the 2 bolts and No 1 chain vibration damper

Fig. 262: Locating No. 1 Chain Vibration Damper Bolts
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

2009 Toyota Tundra

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

41

REMOVE CAMSHAFT TIMING GEARS AND NO. 2 CHAIN (for Bank 1)

a

While raising the No 2 chain tensioner, insert a pin of 1 0 mm (0 0394 in ) into the hole to fix it

Fig. 263: Identifying No. 2 Chain Tensioner
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

b

Hold the hexagonal portion of the camshaft with a wrench, and remove the 2 bolts, camshaft timing
gear, camshaft timing sprocket and No 2 chain

42

REMOVE NO. 2 CHAIN TENSIONER ASSEMBLY

a

Remove the bolt and No 2 chain tensioner

NOTE:



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



Do not disassemble the camshaft timing gear.

Fig. 264: Holding Hexagonal Portion Of Camshaft With Wrench
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

2009 Toyota Tundra

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

Fig. 265: Locating No. 2 Chain Tensioner Bolt
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

43

REMOVE CAMSHAFT TIMING GEARS AND NO. 2 CHAIN (for Bank 2)

a

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

Fig. 266: Identifying No. 3 Chain Tensioner
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

b

Hold the hexagonal portion of the camshaft with a wrench, and remove the 2 bolts, camshaft timing
gear, camshaft timing sprocket and No 2 chain

NOTE:



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



Do not disassemble the camshaft timing gear.

Fig. 267: Holding Hexagonal Portion Of Camshaft With Wrench

2009 Toyota Tundra

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

44

REMOVE NO. 3 CHAIN TENSIONER ASSEMBLY

a

Remove the bolt and No 3 chain tensioner

Fig. 268: Locating No. 3 Chain Tensioner Bolt
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

45

REMOVE NO. 1 CAMSHAFT AND NO. 2 CAMSHAFT (for Bank 1)

a

Remove the No 1 and No 2 camshafts

1

Rotate the camshafts counterclockwise using a wrench so that the cam lobes of the No 1
cylinder face each direction as shown below

Fig. 269: Rotating Camshafts Using Wrench
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

2

Uniformly loosen and remove the 16 bearing cap bolts in the sequence shown below

3

Remove the 8 bearing caps and 2 camshafts

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.

2009 Toyota Tundra

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