Toyota Tundra. Manual — part 1940

Fig. 135: Checking Fitting Condition Between Piston And Piston Pin
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

2

Rotate the piston back and forth on the piston pin Check the fitting condition

If abnormal movement is felt, replace the piston and pin as a set

f

Using a small screwdriver, install a new snap ring at the other end of the piston pin hole

HINT:

Be sure that the end gap of the snap ring is not aligned with the pin hole cutout portion of the
piston

Fig. 136: Identifying Service Hole
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

4

INSTALL PISTON RING SET

a

Install the oil ring expander and 2 side rails by hand

2009 Toyota Tundra

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

Fig. 137: Identifying Side Rail Upper, Lower And Oil Ring Expander
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

b

Using a piston ring expander, install the 2 compression rings so that the paint marks are positioned
as shown in the illustration

Paint mark

PAINT MARK REFERENCE CHART

Fig. 138: Identifying Compression Ring Paint Mark
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

5

INSTALL CRANKSHAFT BEARING

a

Clean the main journal and both surfaces of the bearing

Piston Ring Paint Mark

No 1

Blue

No 2

Orange

2009 Toyota Tundra

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

b

Install the upper bearing

Fig. 139: Identifying Crankshaft Bearing Dimension
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

1

Install the upper bearing to the cylinder block as shown in the illustration

NOTE:

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.



Both sides of the oil groove in the cylinder block should be
visible through the oil feed holes in the bearing. The
amount visible on each side of the holes should be equal.



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 (3UR-FBE) - Tundra

c

Install the lower bearing

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.

2009 Toyota Tundra

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