REPLACE INTAKE VALVE GUIDE BUSH

REPLACE EXHAUST VALVE GUIDE BUSH

REPLACE STRAIGHT PIN

REPLACE RING PIN

REPLACE SPARK PLUG TUBE

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 intake valve guide bushes.

• SST
• 09201-10000(09201-01050)
  09950-70010(09951-07100)

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

• Standard Bush Bore Diameter:

• Item	Specified Condition
  STD	10.285 to 10.306 mm (0.4049 to 0.4057 in.)
  O/S 0.05	10.335 to 10.356 mm (0.4069 to 0.4077 in.)

Select a new valve guide bush.

• New Guide Bush:

• Item	Specified Condition
  Bush Bore Diameter	10.285 to 10.306 mm (0.4049 to 0.4057 in.)	10.335 to 10.356 mm (0.4069 to 0.4077 in.)
  Use Bush	STD	O/S 0.05

If the bush bore diameter of the cylinder head is more than 10.306 mm (0.4057 in.), machine the bush bore diameter to 10.335 to 10.356 mm (0.4069 to 0.4077 in.) to install an O/S 0.05 valve guide bush.

If the bush bore diameter of the cylinder head is more than 10.356 mm (0.4077 in.), replace the cylinder head.

• New Guide Bush Diameter:

• Item	Specified Condition
  STD	10.333 to 10.344 mm (0.4068 to 0.4072 in.)
  O/S 0.05	10.383 to 10.394 mm (0.4088 to 0.4092 in.)

• HINT:

• Different bushes are used for the intake and exhaust.

• Standard bush length:
• 41.3 to 41.7 mm (1.63 to 1.64 in.)

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

Place the cylinder head on wooden blocks.

Using SST, tap in the intake valve guide bushes to the specified protrusion height.

• SST
• 09201-10000(09201-01050)
  09950-70010(09951-07100)

• Standard protrusion height:
• 9.10 to 9.90 mm (0.358 to 0.390 in.)

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

• Standard oil clearance:
• 0.025 to 0.060 mm (0.000984 to 0.00236 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 exhaust valve guide bushes.

• SST
• 09201-10000(09201-01050)
  09950-70010(09951-07100)

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

• Standard Bush Bore Diameter:

• Item	Specified Condition
  STD	10.285 to 10.306 mm (0.4049 to 0.4057 in.)
  O/S 0.05	10.335 to 10.356 mm (0.4069 to 0.4077 in.)

Select a new valve guide bush.

• New Guide Bush:

• Item	Specified Condition
  Bush Bore Diameter	10.285 to 10.306 mm (0.4049 to 0.4057 in.)	10.335 to 10.356 mm (0.4069 to 0.4077 in.)
  Use Bush	STD	O/S 0.05

If the bush bore diameter of the cylinder head is more than 10.306 mm (0.4057 in.), machine the bush bore diameter to 10.335 to 10.356 mm (0.4069 to 0.4077 in.) to install an O/S 0.05 valve guide bush.

If the bush bore diameter of the cylinder head is more than 10.356 mm (0.4077 in.), replace the cylinder head.

• New Guide Bush Diameter:

• Item	Specified Condition
  STD	10.333 to 10.344 mm (0.4068 to 0.4072 in.)
  O/S 0.05	10.383 to 10.394 mm (0.4088 to 0.4092 in.)

• HINT:

• Different bushes are used for the intake and exhaust.

• Standard bush length:
• 46.8 to 47.2 mm (1.84 to 1.86 in.)

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

Place the cylinder head on wooden blocks.

Using SST, tap in the exhaust valve guide bushes to the specified protrusion height.

• SST
• 09201-10000(09201-01050)
  09950-70010(09951-07100)

• Standard protrusion height:
• 9.10 to 9.90 mm (0.358 to 0.390 in.)

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

• Standard oil clearance:
• 0.030 to 0.065 mm (0.00118 to 0.00256 in.)

Using a plastic-faced hammer, tap in new straight pins as shown in the illustration.

• Standard protrusion height:
• 18.0 to 19.0 mm (0.708 to 0.748 in.)

Using a plastic-faced hammer, tap in new ring pins to the specified protrusion height.

• Standard protrusion height:
• 2.5 to 3.5 mm (0.0984 to 0.138 in.)

Apply adhesive to the end of a new spark plug tube.

• Adhesive:
• Toyota Genuine Adhesive 1324, Three Bond 1324 or equivalent.

• Standard seal diameter:
• 1.0 to 3.0 mm (0.394 to 0.118 in.)

• Distance:
• 9.0 to 15.0 mm (0.354 to 0.590 in.)

• NOTICE:

Using a wooden block and hammer, tap in the spark plug tube to the specified protrusion height.

• Standard protrusion height:
• 75.1 to 76.1 mm (2.96 to 3.00 in.)

• NOTICE:

• To avoid tapping in the spark plug tube too far, measure the protrusion height while tapping it.