Toyota Tundra. Manual — part 2208

specification.

Fig. 78: Checking Exhaust Valve Seat
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

b. Using 30° and 60° cutters, correct the valve seat so that the valve contacts the entire circumference

of the seat. The contact should be in the center of the valve seat, and the valve seat width should be
maintained within the specified range around the entire circumference of the seat.

Standard width:

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.

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.

2009 Toyota Tundra

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

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:

Keep the lower bearing inserted to the connecting rod cap.

2009 Toyota Tundra

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

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.

Fig. 85: Identifying Front Mark On Connecting Rod Cap
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

2009 Toyota Tundra

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