Cylinder Head Replacement

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 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 side.

Standard bush bore diameter:

10.285 to 10.306 mm (0.405 to 0.406 in.)

Select a new guide bush (STD or O/S 0.05), and measure its diameter.

Machine the bush bore diameter of the cylinder head side to the diameter of the selected guide bush.

Bush Bore Diameter:

Bush Size	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.)

Standard bush length:

41.3 to 41.7 mm (1.63 to 1.64 in.)

Using SST and a hammer, tap in a new 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 guide bush and 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 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:

10.285 to 10.306 mm (0.405 to 0.406 in.)

Select a new guide bush (STD or O/S 0.05), and measure its diameter.

Machine the bush bore diameter of the cylinder head side to the diameter of the selected guide bush.

Bush Bore Diameter:

Bush Size	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.)

Standard bush length:

46.8 to 47.2 mm (1.84 to 1.86 in.)

Using SST and a hammer, tap in a new 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 guide bush and valve stem.

Standard oil clearance:

0.030 to 0.065 mm (0.00118 to 0.00256 in.)

Remove the spark plug tube.

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:

1. Install the spark plug tube within 3 minutes after applying adhesive.
   
2. Be careful not to deform the spark plug tube.
   
3. Be careful not to expose the seal to coolant for at least 1 hour after installing it.
   

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.

Remove the ring pins.

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

Standard Protrusion:

Item	Specified Condition
Ring pin A	5.5 to 6.5 mm (0.217 to 0.256 in.)
Ring pin B	3.5 to 6.5 mm (0.138 to 0.256 in.)