Toyota Tundra. Manual — part 1993

a

Using needle-nose pliers, remove the oil seals

Fig. 36: Removing Valve Stem Oil Seal
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

4

REMOVE VALVE SPRING SEAT

a

Using compressed air and a magnetic finger, remove the valve spring seat by blowing air onto it

Fig. 37: Removing Valve Spring Seat
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

5

REMOVE NO. 1 STRAIGHT SCREW PLUG

a

Using a 10 mm hexagon wrench, remove the 6 screw plugs and 6 gaskets

NOTE:

If water leaks from the No. 1 screw plug or the plug is corroded, replace it.

2009 Toyota Tundra

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

Fig. 38: Locating No. 1 Screw Plugs And Gaskets
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

6

REMOVE NO. 2 STRAIGHT SCREW PLUG

a

Using a 14 mm hexagon wrench, remove the 2 screw plugs and 2 gaskets

Fig. 39: Locating No. 2 Screw Plug And Gaskets
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

7

REMOVE STUD BOLT

INSPECTION

1

INSPECT CAMSHAFT OIL CLEARANCE

a

Clean the bearing caps, camshaft housing and camshaft journals

b

Place the camshafts on the camshaft housing

c

Lay a strip of Plastigage across each of the camshaft journals

NOTE:

If water leaks from the No. 2 screw plug or the plug is corroded,
replace it.

NOTE:

If the stud bolt is deformed or its threads are damaged, replace it.

2009 Toyota Tundra

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

Fig. 40: Laying Strip Of Plastigage Across Camshaft Journals
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

d

Install the camshaft bearing caps (see REASSEMBLY )

e

Install the camshaft housing (see REASSEMBLY )

f

Remove the camshaft bearing caps (see DISASSEMBLY )

g

Measure the Plastigage at its widest point

Standard oil clearance

STANDARD OIL CLEARANCE SPECIFICATIONS

Maximum oil clearance

MAXIMUM OIL CLEARANCE SPECIFICATIONS

NOTE:

Do not turn the camshaft.

NOTE:

Do not turn the camshaft.

Item

Specified Condition

No 1 journal 0 030 to 0 065 mm (0 00118 to 0 00256 in )

Other journals 0 025 to 0 062 mm (0 000984 to 0 00244 in )

Item

Specified Condition

2009 Toyota Tundra

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

Fig. 41: Measuring Plastigage At Widest Point
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

If the oil clearance is greater than the maximum, replace the camshaft If necessary, replace the
camshaft housing

2

INSPECT CAMSHAFT THRUST CLEARANCE

a

Inspect the LH side camshafts

1

Install the LH side camshafts

2

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

Standard thrust clearance: 0.08 to 0.135 mm (0.00315 to 0.00531 in.)

Maximum thrust clearance: 0.15 mm (0.00591 in.)

If the thrust clearance is greater than the maximum, replace the camshaft housing If the
thrust surface is damaged, replace the camshaft

No 1 journal 0 10 mm (0 00394 in )

Other journals 0 09 mm (0 00354 In )

2009 Toyota Tundra

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