Toyota Tundra. Manual — part 1793

d

Check the fitting condition between the piston and piston pin by trying to move the piston back and
forth on the piston pin

Fig. 130: Locating Fitting Condition Between Piston And Piston Pin
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

4

INSTALL PISTON PIN HOLE SNAP RING

a

Using a 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. 131: Using Screwdriver To Install Piston Pin Hole Snap Ring
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

5

INSTALL PISTON RING SET

a

Install the oil ring (expander) and 2 side rails by hand

b

Using a piston ring expander, install the 2 compression rings

NOTE:

Install the No. 2 compression ring with the painted mark on the right
side.

2009 Toyota Tundra

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

Fig. 132: Using Piston Ring Expander To Install Compression Rings
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

c

Position the piston rings so that the ring ends are as shown

Fig. 133: Identifying Piston Rings Position
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

6

INSTALL CONNECTING ROD BEARING

a

Install the bearing to the connecting rod cap

NOTE:



Clean the contact surface of the bearing and connecting rod
cap.



Do not apply engine oil to the bearing and its contact surface.

2009 Toyota Tundra

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

b

Install the bearing to the connecting rod

7

INSTALL CRANKSHAFT BEARING

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 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. 134: Identifying Bearing & Connecting Rod Cap
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

NOTE:



Clean the contact surface of the bearing and connecting rod.



Do not apply engine oil to the bearing and its contact surface.

Fig. 135: Identifying Bearing & Connecting Rod
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

2009 Toyota Tundra

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

Fig. 136: Identifying Crankshaft Bearing
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
bearings

c

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

HINT:

The number marked on each bearing cap indicates the installation position

NOTE:



Clean the contact surface of the bearing and cylinder block.



Do not apply engine oil to the bearing and its contact surface.

Fig. 137: Pushing In Upper Bearings
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

NOTE:



Clean the contact surface of the bearing and crankshaft bearing
cap.



Do not apply engine oil to the bearing and its contact surface.

2009 Toyota Tundra

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