Toyota Tundra. Manual — part 1822

Fig. 313: Measuring Warpage Of Contact Surface Of Cylinder Head Gasket Using Straight
Edge & Feeler Gauge
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

19

INSPECT CYLINDER BORE

a

Using a cylinder gauge, measure the cylinder bore diameter at positions A and B in the thrust and
axial directions

Standard diameter: 94.000 to 94.012 mm (3.7008 to 3.7013 in.)

Maximum diameter: 94.132 mm (3.7060 in.)

If the diameter is greater than the maximum, replace the cylinder block

Fig. 314: Identifying Measuring Cylinder Bore Diameter Positions A And B
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

20

INSPECT PISTON WITH PIN SUB-ASSEMBLY

a

Using a micrometer, measure the piston diameter at a right angle to the piston pin center line, 40 7
mm (1 60 in ) from the piston head

Piston diameter: 93.950 to 93.960 mm (3.6988 to 3.6992 in.)

2009 Toyota Tundra

2009 ENGINE Engine Mechanical (1GR-FE) - Tundra

Fig. 315: Measuring Piston Diameter At Right Angle To Piston Pin Center Line From Piston
Head Using Micrometer
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

21

INSPECT PISTON OIL CLEARANCE

a

Subtract the piston diameter measurement from the cylinder bore diameter measurement

Standard oil clearance: 0.060 to 0.102 mm (0.00236 to 0.00401 in.)

Maximum oil clearance: 0.13 mm (0.00512 in.)

If the oil clearance is greater than the maximum, replace all 6 pistons If necessary, replace the
cylinder block

22

INSPECT PISTON PIN OIL CLEARANCE

a

Check each mark on the piston, piston pin and connecting rod

Fig. 316: Identifying Mark On Piston, Piston Pin And Connecting Rod

2009 Toyota Tundra

2009 ENGINE Engine Mechanical (1GR-FE) - Tundra

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

b

Using a caliper gauge, measure the inside diameter of the piston pin hole

Standard piston pin hole inside diameter

PISTON PIN HOLE INSIDE DIAMETER SPECIFICATION

Fig. 317: Measuring Inside Diameter Of Piston Pin Hole Using Caliper Gauge
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

c

Using a micrometer, measure the piston pin diameter

Standard piston pin diameter

PISTON PIN DIAMETER SPECIFICATION

Mark

Specified Condition

A

22 001 to 22 004 mm

(0 86618 to 0 86630 in )

B

22 005 to 22 007 mm

(0 86634 to 0 86642 in )

C

22 008 to 22 010 mm

(0 86645 to 0 86653 in )

Mark

Specified Condition

A

21 997 to 22 000 mm

(0 86602 to 0 86614 in )

B

22 001 to 22 003 mm

(0 86618 to 0 86626 in )

C

22 004 to 22 006 mm

(0 86630 to 0 86642 in )

2009 Toyota Tundra

2009 ENGINE Engine Mechanical (1GR-FE) - Tundra

Fig. 318: Measuring Piston Pin Diameter Using Micrometer
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

d

Using a caliper gauge, measure the inside diameter of the connecting rod bush

Standard bush inside diameter

BUSH INSIDE DIAMETER SPECIFICATION

Fig. 319: Measuring Inside Diameter Of Connecting Rod Bush Using Caliper Gauge
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

Mark

Specified Condition

A

22 005 to 22 008 mm

(0 86634 to 0 86645 in )

B

22 009 to 22 011 mm

(0 86649 to 0 86657 in )

C

22 012 to 22 014 mm

(0 86661 to 0 86669 in )

2009 Toyota Tundra

2009 ENGINE Engine Mechanical (1GR-FE) - Tundra