Toyota Tundra. Manual — part 2008

c

Install the lower bearing

1

Install the lower bearings to the bearing caps

Fig. 141: Installing Lower Bearings To Bearing Caps
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

2

Using a vernier caliper, measure the distance between the bearing cap's edge and the lower
bearing's edge

Dimension A - B or B - A: 0 to 0.7 mm (0 to 0.0276 in.)

Fig. 140: Installing Upper Bearing To Cylinder Block
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

NOTE:



Be sure to install the selected bearing.



Main bearings come in widths of 21 mm (0.827 in.) and 22.5 mm
(0.886 in.). Install the 22.5 mm (0.886 in.) bearings in the No. 1
and No. 5 cylinder block journal positions with the main bearing
caps. Install the 21 mm (0.827 in.) bearings in the No. 2, No. 3
and No. 4 positions.

NOTE:



Do not apply engine oil to the bearings and the contact
surfaces.



Do not allow coolant to come into contact with the bearing

2009 Toyota Tundra

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

6

INSTALL CRANKSHAFT THRUST WASHER SET

a

Apply engine oil to the thrust washer set

Fig. 142: Locating Thrust Washer Set
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

b

Install the 4 thrust washers to the No 3 journal position of the cylinder block and bearing cap with
the oil grooves facing outward

7

INSTALL CRANKSHAFT

a

Apply engine oil to the upper bearing and lower bearing, then place the crankshaft on the cylinder
block

Fig. 143: Identifying Upper Bearing And Lower Bearing Number Mark
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

b

Confirm the front marks and numbers of the main bearing caps, and install the bearing caps on the
cylinder block

HINT:

A number is marked on each main bearing cap to indicate the installation position

inner surface.



If any coolant comes into contact with the bearing inner
surface, replace the bearing with a new one.

2009 Toyota Tundra

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

c

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

d

Temporarily install the 10 main bearing cap bolts to the inside positions

e

Insert the main bearing cap by hand until the clearance between the main bearing cap and cylinder
block is less than 6 mm (0 236 in ) by marking the 2 internal bearing cap bolts as a guide

Bolt length: 91 mm (3.58 in.)

Fig. 144: Identifying Clearance Between Main Bearing Cap And Cylinder Block
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

f

Using a plastic-faced hammer, lightly tap the bearing cap to ensure a proper fit

Fig. 145: Checking Bearing Cap Installation
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

g

Apply a light coat of engine oil to the threads and under the heads of the 10 main bearing cap bolts

h

Temporarily install the 10 main bearing cap bolts to the outside positions

Bolt length: 79.5 mm (3.13 in.)

HINT:

The main bearing cap bolts are tightened in 2 progressive steps

2009 Toyota Tundra

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

Fig. 146: Identifying Main Bearing Cap Bolt Dimension
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

i

Step 1:

1

Uniformly tighten the 20 main bearing cap bolts in the sequence shown in the illustration

Torque: for inside position

61 N*m (622 kgf*cm, 45 ft.*lbf)

for outside position

27 N*m (275 kgf*cm, 20 ft.*lbf)

If any of the main bearing cap bolts do not meet the specified torque, replace it

Fig. 147: Identifying Main Bearing Cap Bolts Tightening Sequence
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

j

Step 2:

1

Mark the front of the bearing cap bolts with paint

2

Tighten the bearing cap bolts another 90° in the order shown in step 1

2009 Toyota Tundra

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