Toyota Tundra. Manual — part 1776

Fig. 24: Identifying Timing Marks Of Camshaft Timing Gears And Sprockets
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

3

Place paint marks on the chain links that correspond with the timing marks of the camshaft
timing gears

Fig. 25: Placing Paint Marks On Chain And Timing Marks Of Camshaft Timing Gears
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

b

Remove the No 1 chain tensioner

NOTE:



Never rotate the crankshaft with the No. 1 chain tensioner
removed.



When rotating the camshaft with the No. 1 chain removed, turn
the crankshaft counterclockwise 40° from the TDC first.

2009 Toyota Tundra

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

1

Remove the 4 bolts, timing chain cover plate and gasket

Fig. 26: Locating Timing Chain Cover Bolts
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

2

While rotating the stopper plate of the No 1 chain tensioner upward, push in the plunger of
the No 1 chain tensioner as shown below

3

While rotating the stopper plate of the tensioner downward, insert a bar of 3 5 mm (0 138 in )
into the holes in the stopper plate and tensioner to fix the stopper plate

4

Remove the 2 bolts and No 1 chain tensioner

Fig. 27: Inserting Bar Into Holes In Stopper Plate
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

c

Remove the No 2 camshaft

1

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

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

Fig. 28: Inserting Pin Into Hole
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

2

Hold the hexagonal portion of the No 2 camshaft with a wrench, and remove the camshaft
timing sprocket set bolt

Fig. 29: Holding Hexagonal Portion Of No. 2 Camshaft With Wrench
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

3

Separate the camshaft timing gear from the No 2 camshaft

4

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

Fig. 30: Rotating Camshaft Using Wrench

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

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

5

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

6

Remove the 4 bearing caps and No 2 camshaft

Fig. 31: Identifying Bearing Cap Bolt Loosening Sequence
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

d

Remove the No 2 chain tensioner

1

Remove the No 2 chain tensioner bolt, No 2 chain tensioner and camshaft timing sprocket

Fig. 32: Locating No. 2 Chain Tensioner Bolt
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

e

Remove the No 1 camshaft

1

Hold the hexagonal portion of the No 1 camshaft with a wrench, and loosen the camshaft
timing gear set bolt

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

2009 Toyota Tundra

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