Toyota Sequoia (2005). Manual - part 673

A05086

Pry

A05100

A05104

A05105

EM–102

–

ENGINE MECHANICAL

CYLINDER BLOCK

2681

18.

REMOVE REAR OIL SEAL RETAINER

(a)

Remove the 7 bolts.

(b)

Using a screwdriver, remove the oil seal retainer by prying
the portion between the oil seal retainer and main bearing
cap.

(c)

Remove the O–ring.

19.

CHECK CONNECTING ROD THRUST CLEARANCE

Using a dial indicator, measure the thrust clearance while mov-
ing the connecting rod back an forth.

Standard thrust clearance:
0.160 to 0.290 mm (0.0063 to 0.0114 in.)
Maximum thrust clearance: 0.35 mm (0.0138 in.)

If the thrust clearance is greater than maximum, replace the
connecting rod assembly(s). If necessary, replace the crank-
shaft.

Connecting rod thickness:
22.880 to 22.920 mm (0.9008 to 0.9024 in.)

20.

REMOVE CONNECTING ROD CAPS AND CHECK OIL
CLEARANCE

(a)

Check the matchmarks on the connecting rod and see it
cap to ensure correct reassembly.

(b)

Remove the 2 connecting rod cap bolts.

(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 with the connecting rod cap.
(d)

Clean the crank pin and bearing.

(e)

Check the crank pin and bearing for peeling and
scratches.

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

A05102

Plastigage

A05101

A05103

A05852

A05087

A05853

A05175

Number
Mark

Number
Mark

Number
Mark

No.1

No.2

No.3

No.4

Connecting rod cap

Crankshaft

Use bearing

Number mark

1

2

3

4

7

6

1

2

1

1

2

1

3

2

2

3

1

2

3

3

2

4

1

3

3

4

4

2

3

5

EXAMPLE:
Connecting rod cap ”3” + Crankshaft ”1” 
= Total number 4 (Use bearing ”4”)

–

ENGINE MECHANICAL

CYLINDER BLOCK

EM–103

2682

(f)

Lay a strip of Plastigage across the crank pin.

(g)

Install the connecting rod cap with the 2 bolts.
(see page 

EM–119

)

NOTICE:
Do not turn the crankshaft.
(h)

Remove the 2 bolts, connecting rod cap and lower bear-
ing. (See procedure (b) and (c) above)

(i)

Measure the Plastigage at its widest point.
Standard oil clearance:
0.021 to 0.047 mm (0.0008 to 0.0019 in.)
Maximum oil clearance: 0.059 mm (0.0023 in.)

If the oil clearance is greater than maximum, replace the bear-
ings. If necessary, replace the crankshaft.

HINT:
If using a standard bearing, replace it with one having the same
number. If the number of the bearing cannot be determined, se-
lect the correct bearing by adding together the numbers im-
printed on the connecting rod cap and crankshaft, then select-
ing the bearing with the same number as the total. There are 6
sizes of standard bearings, marked ”2”, ”3”, ”4”, ”5”, ”6” and ”7”.

A04852

Ridge
Reamer

A05096

A05095

1

2

4

8

6

3

5

9

7

10

EM–104

–

ENGINE MECHANICAL

CYLINDER BLOCK

2683

Reference
Connecting rod big end inside diameter:

Mark ”1”

55.000 to 55.006 mm (2.1654 to 2.1656 in.)

Mark ”2”

55.006 to 55.012 mm (2.1656 to 2.1658 in.)

Mark ”3”

55.012 to 55.018 mm (2.1658 to 2.1661 in.)

Mark ”4”

55.018 to 55.024 mm (2.1661 to 2.1663 in.)

Crankshaft crank pin diameter:

Mark ”1”

51.994 to 52.000 mm (2.0470 to 2.0472 in.)

Mark ”2”

51.988 to 51.994 mm (2.0468 to 2.0470 in.)

Mark ”3”

51.982 to 51.988 mm (2.0465 to 2.0468 in.)

Standard sized bearing center wall thickness:

Mark ”2”

1.487 to 1.490 mm (0.0585 to 0.0587 in.)

Mark ”3”

1.490 to 1.493 mm (0.0587 to 0.0588 in.)

Mark ”4”

1.493 to 1.496 mm (0.0588 to 0.0589 in.)

Mark ”5”

1.496 to 1.499 mm (0.0589 to 0.0590 in.)

Mark ”6”

1.499 to 1.502 mm (0.0590 to 0.0591 in.)

Mark ”7”

1.502 to 1.505 mm (0.0591 to 0.0593 in.)

(j)

Completely remove the Plastigage.

21.

REMOVE PISTON AND CONNECTING  ROD AS-
SEMBLIES

(a)

Using a ridge reamer, remove all the carbon from the top
of the cylinder.

(b)

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 assemblies in cor-
rect order.

22.

CHECK CRANKSHAFT THRUST CLEARANCE

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

Standard thrust clearance:
0.020 to 0.220 mm (0.0008 to 0.0087 in.)
Maximum thrust clearance: 0.30 mm (0.0118 in.)

If the thrust clearance is greater than maximum, replace the
thrust washers as a set.

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

23.

REMOVE MAIN BEARING CAPS AND CHECK OIL
CLEARANCE

(a)

Uniformly loosen and remove the 10 main bearing cap
bolts in several passes, in the sequence shown.

A05093

A05097

Plastigage

A05095

A05098

–

ENGINE MECHANICAL

CYLINDER BLOCK

EM–105

2684

(b)

Using 2 screwdrivers, pry out the main bearing cap, and
remove the 5 main bearing caps, 5 lower bearings and 2
lower thrust washers (No.3 main bearing cap only).

NOTICE:
Be careful not to damage the cylinder block.
HINT:

Keep the lower bearing and main bearing cap together.

Arrange the main bearing caps and lower thrust washers
in correct order.

(c)

Lift out the crankshaft.

HINT:
Keep the upper bearings and upper thrust washers together
with the cylinder block.
(d)

Clean each main journal and bearing.

(e)

Check each main journal and bearing for peelings and
scratches.

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

(f)

Place the crankshaft on the cylinder block.

(g)

Lay a strip of Plastigage across each journal.

(h)

Install the main bearing caps. (See page 

EM–119

)

NOTICE:
Do not turn the crankshaft.
(i)

Remove the main bearing caps.
(See procedure (a) and (b) above)

(j)

Measure the Plastigage at its widest point.
Standard clearance:
No.1, No.5
0.028 to 0.046 mm (0.0011 to 0.0018 in.)
Others
0.040 to 0.058 mm (0.0016 to 0.0023 in.)
Maximum clearance: 0.065 mm (0.0026 in.)

If the oil clearance is greater than maximum, replace the bear-
ings. If necessary, replace the crankshaft.