Toyota Tundra. Manual — part 1931

1.1 to 1.5 mm (0.0433 to 0.0591 in.)

Fig. 79: Identifying Exhaust Valve Seat Angle
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

c

Hand-lap the valve and valve seat with an abrasive compound

d

Check the valve seating position

CYLINDER BLOCK

COMPONENTS

2009 Toyota Tundra

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

Fig. 80: Identifying Cylinder Block With Torque Specifications
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

DISASSEMBLY

1

INSPECT CONNECTING ROD THRUST CLEARANCE

a

Using a dial indicator, measure the thrust clearance while moving the connecting rod back and
forth

2009 Toyota Tundra

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

Standard thrust clearance:

0.15 to 0.55 mm (0.00591 to 0.0217 in.)

Maximum thrust clearance:

0.70 mm (0.0276 in.)

If the thrust clearance is more than the maximum, replace one or more connecting rods as
necessary If necessary, replace the crankshaft

Fig. 81: Measuring Thrust Clearance
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

2

INSPECT CONNECTING ROD OIL CLEARANCE

a

Check that the front mark on the connecting rod and cap are aligned to ensure correct reassembly

b

Remove the 2 connecting rod cap bolts

Fig. 82: Removing Connecting Rod Cap Bolts
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

c

Using the 2 removed connecting rod cap bolts, remove the connecting rod cap and lower bearing by
wiggling the connecting rod cap right and left

HINT:

2009 Toyota Tundra

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

Keep the lower bearing inserted to the connecting rod cap

Fig. 83: Removing Connecting Rod Cap And Lower Bearing
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

d

Clean the crank pin and bearing

e

Check the crank pin and bearing for pitting and scratches

If the crank pin or bearing is damaged, replace the bearings If necessary, replace the crankshaft

f

Lay a strip of Plastigage on the crank pin

Fig. 84: Laying Strip Of Plastigage On Crank Pin
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

g

Check that the front mark of the connecting rod cap is facing forward

2009 Toyota Tundra

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