Toyota Tundra. Manual — part 1781

Fig. 62: Putting No. 1 Chain On No. 2 Chain Of Camshaft Timing Gear
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

4

Align the knock pin hole of the camshaft timing gear with the knock pin of the No 1
camshaft, and insert the No 1 camshaft into the camshaft timing gear

5

Apply a light coat of engine oil to the threads and under the head of the camshaft timing gear
set bolt

6

Temporarily install the camshaft timing gear set bolt

Fig. 63: Aligning Knock Pin Hole Of Camshaft Timing Gear With Knock Pin Of No. 1
Camshaft
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

7

Set the No 1 camshaft onto the cylinder head RH with the cam lobes of the No 1 cylinder
facing downward as shown below

Fig. 64: Setting No. 1 Camshaft Onto Cylinder Head RH With Cam Lobes Of No. 1

2009 Toyota Tundra

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

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

8

Apply a light coat of engine oil to the 4 bearing caps

9

Install the 4 bearing caps in their proper locations

Fig. 65: Identifying Bearing Caps Installing Location
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

10

Apply a light coat of engine oil to the threads and under the heads of the 8 bearing cap bolts

11

Uniformly install the 8 bearing cap bolts in several steps in the order shown below

Torque: for 10 mm head

9.0 N*m (92 kgf*cm, 80 in.*lbf)

for 12 mm head

24 N*m (245 kgf*cm, 18 ft.*lbf)

Fig. 66: Identifying Bearing Cap Bolt Tightening Sequence
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

12

Rotate the No 1 camshaft clockwise using the hexagonal portion of the No 1 camshaft so
that the timing mark of the camshaft timing gear is aligned with the timing mark of the
camshaft bearing cap

2009 Toyota Tundra

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

Fig. 67: Rotating No. 1 Camshaft Clockwise Using Hexagonal Portion Of No. 1
Camshaft
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

13

Align the paint mark of the No 1 chain with the timing mark of the camshaft timing gear

Fig. 68: Aligning Paint Mark Of No. 1 Chain With Timing Mark Of Camshaft Timing
Gear
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

14

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

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

Fig. 69: 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

o

Install the No 2 chain tensioner

1

While pushing in the tensioner, insert a pin of 1 0 mm (0 0394 in ) into the hole to fix it

Fig. 70: Inserting Pin While Pushing In No. 2 Chain Tensioner
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

2

Temporarily install the camshaft timing sprocket and No 2 chain tensioner and align the
mark links (yellow) with the timing marks (1-dot mark) of the camshaft timing gear and
sprocket

3

Apply a light coat of engine oil to the threads and under the head of the No 2 chain tensioner
bolt

4

Install the No 2 chain tensioner with the bolt

Torque: 21 N*m (214 kgf*cm, 15 ft.*lbf)

Fig. 71: Aligning Mark With Timing Marks Of Camshaft Timing Gear And Sprocket
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

p

Install the No 2 camshaft

NOTE:

As the thrust clearance of the camshaft is small, the camshaft must
be kept level while it is being installed. 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