REPLACE INTAKE VALVE GUIDE BUSH

REPLACE EXHAUST VALVE GUIDE BUSH

REPLACE SPARK PLUG TUBE

REPLACE RING PIN

Heat the cylinder head to approximately 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 bush.

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

Using a caliper gauge, measure the 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.)
  Bush to be Used	STD	O/S 0.05

If the bush bore diameter of the cylinder head is more than 10.306 mm (0.406 in.), machine the bush bore diameter to between 10.335 and 10.356 mm (0.4069 and 0.4077 in.).

If the bush bore diameter of the cylinder head is more than 10.356 mm (0.408 in.), replace the cylinder head sub-assembly.

• New Guide Bush Diameter:

• Item	Bush Diameter
  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:

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

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

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

• Standard protrusion height:
• 14.3 to 14.7 mm (0.563 to 0.579 in.)

Using a sharp 5.5 mm reamer, ream the guide bush to obtain the standard oil clearance between the intake valve guide bush and intake valve stem.

• Standard oil clearance:
• 0.025 to 0.060 mm (0.000984 to 0.00236 in.)

Heat the cylinder head to approximately 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 bush.

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

Using a caliper gauge, measure the 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 exhaust 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.)
  Bush to be Used	STD	O/S 0.05

If the bush bore diameter of the cylinder head is more than 10.306 mm (0.406 in.), machine the bush bore diameter to between 10.335 and 10.356 mm (0.4069 and 0.4077 in.).

If the bush bore diameter of the cylinder head is more than 10.356 mm (0.408 in.), replace the cylinder head sub-assembly.

• New Guide Bush Diameter:

• Item	Bush Diameter
  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:

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

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

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

• Standard protrusion height:
• 14.3 to 14.7 mm (0.563 to 0.579 in.)

Using a sharp 5.5 mm reamer, ream the exhaust valve guide bush to obtain the standard oil clearance between the exhaust valve guide bush and exhaust valve stem.

• Standard oil clearance:
• 0.030 to 0.065 mm (0.00118 to 0.00256 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:
• 15 mm (0.591 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 in the tube.

Remove the ring pins.

Using a plastic-faced hammer, tap in new ring pins to the cylinder head.

• Standard Ring Pin:

• Item	Height	Width	Protrusion
  Ring pin A	11 mm (0.433 in.)	11 mm (0.433 in.)	5.5 to 6.5 mm (0.217 to 0.256 in.)
  Ring pin B	10 mm (0.394 in.)	11 mm (0.433 in.)	3.5 to 6.5 mm (0.138 to 0.256 in.)