Engine Unit Replacement

Place the timing chain cover on wooden blocks.

Using a screwdriver with its tip taped, pry out the oil seal.

Using SST and a hammer, tap in a new oil seal until its surface is flush with the timing chain cover edge.

SST

09223-75010
09950-70010(09951-07150)

NOTICE:

1. Keep the lip free from foreign matter.
   
2. Do not tap the oil seal at an angle.
   

HINT:

When installing the crankshaft pulley, check the shape of the pulley. The correct pulley has a groove (Toyota Fortuner RM000000YMX00AX_01_0070.html).

Apply a light coat of MP grease to the lip of the oil seal.

Place the oil seal retainer on wooden blocks.

Using a screwdriver with its tip taped and hammer, tap out the oil seal.

Place the oil seal retainer on wooden blocks.

Using SST and a hammer, tap in the oil seal until its surface is flush with the oil seal retainer edge.

SST

09223-15030
09950-70010(09951-07150)

NOTICE:

1. Keep the lip free from foreign matter.
   
2. Do not tap the oil seal at an angle.
   

Heat the cylinder head to 80 to 100°C (176 to 212°F).

Place the cylinder head on wooden blocks.

Using SST and a hammer, tap out the guide bush.

SST

09201-01055
09950-70010(09951-07100)

Using a caliper gauge, measure the bush bore diameter of the cylinder head.

Standard cylinder bore diameter:

10.285 to 10.306 mm (0.4049 to 0.4057 in.)

Select a new guide bush (STD or O/S 0.05).

Heat the cylinder head to 80 to 100°C (176 to 212°F).

Place the cylinder head on wooden blocks.

Using SST and a hammer, tap in a new valve guide bush to the specified protrusion height.

SST

09201-01055
09950-70010(09951-07100)

Standard protrusion height:

9.8 to 10.2 mm (0.3858 to 0.4016 in.)

Using a sharp 5.5 mm reamer, ream the valve guide bush to obtain the standard specified clearance.

Standard oil clearance:

0.025 to 0.060 mm (0.0010 to 0.0023 in.)

Heat the cylinder head to 80 to 100°C (176 to 212°F).

Place the cylinder head on wooden blocks.

Using SST and a hammer, tap out the guide bush.

SST

09201-01055
09950-70010(09951-07100)

Using a caliper gauge, measure the bush bore diameter of the cylinder head.

Standard cylinder bore diameter:

10.285 to 10.306 mm (0.4049 to 0.4057 in.)

Select a new guide bush (STD or O/S 0.05).

Heat the cylinder head to 80 to 100°C (176 to 212°F).

Place the cylinder head on the wooden blocks.

Using SST and a hammer, tap in a new valve guide bush to the specified protrusion height.

SST

09201-01055
09950-70010(09951-07100)

Standard protrusion height:

7.6 to 8.0 mm (0.2992 to 0.3150 in.)

Using a sharp 5.5 mm reamer, ream the valve guide bush to obtain the standard specified clearance.

Standard oil clearance:

0.030 to 0.065 mm (0.0012 to 0.0026 in.)

Using SST and a press, press out the bush.

SST

09222-30010

Align the oil holes of a new bush and the connecting rod.

Using SST and a press, press in the bush.

SST

09222-30010

Using a pin hole grinder, hone the bush to obtain the standard specified clearance between the bush and piston pin.

Coat the piston pin with engine oil. Push the piston pin into the connecting rod with your thumb to check that the piston pin fits at normal room temperature.