Toyota Tundra. Manual — part 1824

Diameter: 55.992 to 56.000 mm (2.2044 to 2.2047 in.)

If the diameter is not as specified, check the oil clearance If necessary, replace the crankshaft

e

Check each crank pin for taper and out-of-round as shown below

Maximum taper and out-of-round: 0.02 mm (0.000787 in.)

If the taper and out-of-round is greater than the maximum, replace the crankshaft

Fig. 327: Using Micrometer To Measure Diameter Of Each Crank Pin
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

27

INSPECT CRANKSHAFT THRUST CLEARANCE (See DISASSEMBLY )

28

INSPECT CRANKSHAFT OIL CLEARANCE

HINT:

Main bearings come in widths of 19 0 mm (0 748 in ) and 22 4 mm (0 882 in ) Install the 22 4 mm (0 882
in ) bearings in the No 1 and No 4 cylinder block journal positions with the main bearing cap Install the
19 0 mm (0 748 in ) bearings in the No 2 and No 3 positions

a

Clean each main journal and bearing

Fig. 328: Positioning Main Bearing Cap
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

b

Align the bearing claw with the claw groove of the cylinder block, and push in the 4 upper

2009 Toyota Tundra

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

bearings

c

Align the bearing claw with the claw groove of the main bearing cap, and push in the 4 lower
bearings

HINT:

A number marked on each main bearing cap indicates the installation position

NOTE:



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



Do not allow coolant to come into contact with the bearing inner
surface.



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

Fig. 329: Pushing In Upper Bearings
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

NOTE:



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



Do not allow coolant to come into contact with the bearing 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 (1GR-FE) - Tundra

Fig. 330: Aligning Bearing Claw With Claw Groove Of Main Bearing Cap
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

d

Place the crankshaft on the cylinder block

e

Lay a strip of Plastigage across each journal

Fig. 331: Laying Strip Of Plastigage Across Each Journal
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

f

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

Fig. 332: Identifying Front Marks & Numbers On Cylinder Block
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

g

Temporarily install the 8 crankshaft bearing cap bolts to the inside positions

h

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

2009 Toyota Tundra

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

Fig. 333: Identifying Clearance Between Crankshaft Bearing Cap And Cylinder Block
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

i

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

j

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

Fig. 334: Tapping Crankshaft Bearing Cap Using Plastic-Faced Hammer
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

k

Step 1:

1

Install and uniformly tighten the 16 crankshaft bearing cap bolts in several steps in the order
shown below

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

Fig. 335: Identifying Bearing Cap Bolt Tightening Sequence
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

2009 Toyota Tundra

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