Toyota Tundra. Manual — part 1878

4

INSTALL EXHAUST VALVE

a

Apply plenty of engine oil to the tip area of the exhaust valve shown below

b

Install the valve, valve spring seat, compression spring and spring retainer to the cylinder head

Fig. 229: Identifying Exhaust Valve Length
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

c

Using SST, compress the compression spring and place the 2 spring retainer locks around the valve
stem

SST 09202-70020 (09202-00010, 09202-01010, 09202-01020)

Fig. 230: Compressing Compression Spring Using SST
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

d

Using a plastic-faced hammer and 5 mm pin punch, lightly tap the valve stem tip to ensure a proper
fit

NOTE:

Install the same parts in the same combination to their original
locations.

NOTE:

Do not damage the valve stem tip.

2009 Toyota Tundra

2009 ENGINE Engine Mechanical (2UZ-FE) - Tundra

Fig. 231: Tapping Valve Stem Tip Using Plastic-Faced Hammer & Pin Punch
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

REPAIR

1

REPAIR INTAKE VALVE SEAT

a

Using a 45° carbon cutter, resurface the valve seats

HINT:

Only remove the amount of metal necessary to clean the seats

Fig. 232: Identifying Carbon Cutter Angle
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

b

If the seating is too high on the valve face: Use 30° and 45° cutters to correct the seat

NOTE:



Repair the seat while checking the seating position.



Keep the lip free of foreign matter.



Take off a cutter gradually to make the intake valve seat smooth.

2009 Toyota Tundra

2009 ENGINE Engine Mechanical (2UZ-FE) - Tundra

Fig. 233: Identifying Valve Face Angle (1 Of 2)
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

c

If the seating is too low on the valve face: Use 60° and 45° cutters to correct the seat

d

Check that the seat contact is in the middle of the valve face and has the following width

Standard width: 1.0 to 1.4 mm (0.0394 to 0.0551 in.)

Fig. 234: Identifying Valve Face Angle (2 Of 2)
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

e

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

f

Clean and check the valve seating position

Fig. 235: Checking Valve Seating Position
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

2

REPAIR EXHAUST VALVE SEAT

2009 Toyota Tundra

2009 ENGINE Engine Mechanical (2UZ-FE) - Tundra

a

Using a 45° carbon cutter, resurface the valve seats

HINT:

Only remove the amount of metal necessary to clean the seats

Fig. 236: Identifying Carbon Cutter Angle
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

b

If the seating is too high on the valve face: Use 30° and 45° cutters to correct the seat

Fig. 237: Identifying Valve Face Angle (1 Of 2)
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

c

If the seating is too low on the valve face: Use 60° and 45° cutters to correct the seat

d

Check that the seat contact is in the middle of the valve face and has the following width

Standard width: 1.0 to 1.4 mm (0.0394 to 0.0551 in.)

NOTE:



Repair the seat while checking the seating position.



Keep the lip free of foreign matter.



Take off a cutter gradually to make the intake valve seat smooth.

2009 Toyota Tundra

2009 ENGINE Engine Mechanical (2UZ-FE) - Tundra