Toyota Tundra. Manual — part 1933

o

Completely remove the Plastigage

p

Perform the inspection above for each cylinder

3

REMOVE PISTON AND CONNECTING ROD

a

Using a ridge reamer, remove all the carbon from the top of the cylinder

Fig. 91: Removing Carbon From Top Of Cylinder
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

b

Remove the 16 cap bolts, 8 connecting rod caps and 8 lower bearings

c

Push the 8 pistons and 8 connecting rods through the top of the cylinder block

HINT:

Arrange the piston and connecting rod in the correct order

4

REMOVE CONNECTING ROD BEARING

a

Remove the connecting rod bearings from the connecting rods and connecting rod caps

HINT:

Arrange the removed parts in the correct order

5

REMOVE PISTON RING SET

HINT:

Arrange the piston rings in the correct order

a

Using a piston ring expander, remove the 2 compression rings

2009 Toyota Tundra

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

Fig. 92: Removing Piston Ring Set
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

b

Remove the 2 side rails and oil ring expander by hand

6

REMOVE PISTON WITH PIN SUB-ASSEMBLY

a

Disconnect the connecting rod from the piston

1

Using a small screwdriver, pry off the 2 snap rings from the piston

Fig. 93: Removing Snap Rings From Piston
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

2

Gradually heat the piston to approximately 80°C(176°F)

Fig. 94: Heating Piston
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

3

Using a brass bar and plastic-faced hammer, lightly tap out the piston pin Then remove the
connecting rod

2009 Toyota Tundra

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

HINT:



The piston and pin are a matched set



Arrange the pistons, pins, rings, connecting rods and bearings in the correct order

Fig. 95: Tapping Out Piston Pin
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

b

Clean the piston

1

Using a gasket scraper, remove the carbon from the piston top

Fig. 96: Removing Carbon From Piston Top
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

2

Using a groove cleaning tool or broken ring, clean the piston ring grooves

Fig. 97: Cleaning Piston Ring Grooves
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

2009 Toyota Tundra

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

3

Using solvent and a brush, thoroughly clean the piston

Fig. 98: Cleaning Piston
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

7

INSPECT CRANKSHAFT THRUST CLEARANCE

a

Using a dial indicator, measure the thrust clearance while prying the crankshaft back and forth with
a screwdriver

Standard thrust clearance:

0.020 to 0.220 mm (0.000787 to 0.00866 in.)

Maximum thrust clearance:

0.30 mm (0.0118 in.)

If the thrust clearance is more than the maximum, replace the thrust washers as a set

Fig. 99: Checking Crankshaft Thrust Clearance
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

Standard thrust washer thickness:

NOTE:

Do not use a wire brush.

2009 Toyota Tundra

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