Toyota Tundra. Manual — part 1794

Fig. 138: Pushing In Lower Bearings
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

8

INSTALL CRANKSHAFT

a

Apply new engine oil to the upper bearing and install the crankshaft on the cylinder block

b

Push the crankshaft toward the rear thrust direction to create clearance, and install a thrust washer
to the No 2 journal position with the oil groove facing the front of the engine

c

Push the crankshaft toward the forward thrust direction to create clearance, and install a thrust
washer to the No 2 journal position with the oil groove facing the rear of the engine

Fig. 139: Identifying Upper Thrust Washers With Oil Grooves
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

d

Install the 2 lower thrust washers on the No 2 bearing cap with the grooves facing outward

NOTE:

Clean the contact surface of each main journal and crank pin.

2009 Toyota Tundra

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

Fig. 140: Identifying Positions For Installing Lower Thrust Washers
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

e

Examine the front marks and numbers and install the bearing caps on the cylinder block

f

Apply a light coat of engine oil to the threads of the bearing cap bolts

g

Temporarily install the 8 bearing cap bolts to the inside positions

Fig. 141: Identifying Front Marks And Numbers On Cylinder Block
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

h

Tighten the 2 bolts for each bearing cap until the clearance between the bearing cap and the
cylinder block becomes less than 6 mm (0 236 in )

Fig. 142: Identifying Clearance Between Bearing Cap And Cylinder Block
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

i

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

2009 Toyota Tundra

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

j

Apply a light coat of engine oil to the threads of the bearing cap bolts

Fig. 143: Tapping Bearing Cap Using Plastic-Faced Hammer
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

k

Step 1:

1

Install the 16 bearing cap bolts Using several steps, tighten the bolts uniformly in the
sequence shown below

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

Fig. 144: Identifying Bearing Cap Bolts Tightening Sequence
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

l

Step 2:

1

Mark the front side of the bearing cap bolts with paint

2

Tighten the bearing cap bolts another 90° in the sequence as shown below

2009 Toyota Tundra

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

Fig. 145: Identifying Bearing Cap Bolts Angle
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

m

Check that the painted marks are now at a 90° angle to the front

n

Check that the crankshaft turns smoothly

o

Using several steps, install the 8 bearing cap bolts uniformly in the sequence shown below

Torque: 26 N*m (262 kgf*cm, 19 ft.*lbf)

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

p

Check that the crankshaft turns smoothly

9

INSPECT CRANKSHAFT THRUST CLEARANCE (See DISASSEMBLY )

10

INSTALL PISTON SUB-ASSEMBLY WITH CONNECTING ROD

a

Apply engine oil to the cylinder walls, the pistons, and the surfaces of the connecting rod bearings

b

Check the positions of the piston ring ends

2009 Toyota Tundra

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