Toyota Tundra. Manual — part 1881

m

Completely remove the Plastigage

n

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

b

Remove the 16 cap bolts and 8 connecting rod caps

Fig. 250: Using Ridge Reamer To Remove Carbon From Top Of Cylinder
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

c

Push the piston, connecting rod assembly and upper bearing through the top of the cylinder block

HINT:

Keep the bearings, connecting rod and cap together

Arrange the piston and connecting rod in the correct order

Be sure to arrange the removed piston and connecting rod assemblies in such a way that they
can be reinstalled exactly as before

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

INSPECT CRANKSHAFT THRUST CLEARANCE

a

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

Mark 6

1 499 to less than 1 502 mm (0 0590 to less than 0 0591 in )

Mark 7

1 502 to less than 1 505 mm (0 0591 to less than 0 0593 in )

2009 Toyota Tundra

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

Fig. 251: Using Dial Indicator To Measure Thrust Clearance While Prying Crankshaft Back
& Forth With Screwdriver

Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

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 greater than the maximum, replace the thrust washers as a set If necessary,
replace the crankshaft

Standard thrust washer thickness: 2.440 to 2.490 mm (0.0961 to 0.0980 in.)

6

INSPECT CRANKSHAFT OIL CLEARANCE

a

Uniformly loosen and remove the 10 crankshaft bearing cap bolts in the sequence shown below

Fig. 252: Identifying Crankshaft Bearing Cap Bolt Loosening Sequence
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

b

Using 2 screwdrivers, gradually pry up and remove the 5 crankshaft bearing caps, 5 lower bearings
and 2 lower thrust washers (No 3 crankshaft bearing cap only)

NOTE:

Be careful not to damage the contact surfaces of the cylinder block
and bearing cap.

2009 Toyota Tundra

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

Fig. 253: Using Screwdrivers To Pry & Remove Crankshaft Bearing Caps, Lower Bearings &
Lower Thrust Washers

Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

HINT:

Keep the lower bearing and crankshaft bearing cap together

Arrange the removed parts in the correct order

Be sure to arrange the bearing caps and lower thrust washers in such a way that they can be
reinstalled exactly as before

c

Lift out the crankshaft

d

Remove the 2 upper thrust washers

HINT:

Be sure to arrange the removed upper thrust washers in such a way that they can be
reinstalled exactly as before

Keep the upper bearings together with the cylinder block

e

Clean each crankshaft journal and bearing

f

Check each crankshaft journal and bearing for pitting and scratches

If the journal or bearing is damaged, replace the bearings If necessary, replace the crankshaft

g

Place the crankshaft on the cylinder block

h

Lay a strip of Plastigage across each journal

2009 Toyota Tundra

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

Fig. 254: Laying Strip Of Plastigage
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

i

Examine the front marks and number, and install the 5 crankshaft bearing caps to the cylinder
block

HINT:

A number is marked on each bearing cap to indicate the installation position

If any one of the main bearing cap bolts is broken or deformed, replace it

j

Apply a light coat of engine oil to the threads and under the heads of the crankshaft bearing cap
bolts

Fig. 255: Identifying Crankshaft Bearing Cap Installation Position
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

k

Install and uniformly tighten the 10 crankshaft bearing cap bolts in several steps, in the order
shown below

Torque: 27 N*m (275 kgf*cm, 20 ft.*lbf)

Fig. 256: Identifying Crankshaft Bearing Cap Bolt Tightening Sequence
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

NOTE:

Do not turn the crankshaft. If any one of the crankshaft bearing cap
bolts does not meet the torque specification, replace the crankshaft
bearing cap bolt.

2009 Toyota Tundra

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

Была ли эта страница вам полезна?
Да!Нет
1 посетитель считают эту страницу полезной.
Большое спасибо!
Ваше мнение очень важно для нас.

Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.

Текст

Политика конфиденциальности