Cylinder Head Replacement

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

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

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

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):

Bush Size	Bush Bore Diameter
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.)

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 a new guide bush into the specified protrusion height.

SST

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

Protrusion height:

9.9 to 10.3 mm (0.3898 to 0.4055 in.)

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

Standard oil clearance:

0.025 to 0.060 mm (0.0010 to 0.0024 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

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

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

Diameter:

10.285 to 10.306 mm (0.4049 to 0.4057 in.)

Select a New Guide Bush (STD or O/S 0.05):

Bush Size	Bush Bore Diameter
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.)

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 a new guide bush into the specified protrusion height.

SST

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

Protrusion height:

11.15 to 11.55 mm (0.4390 to 0.4547 in.)

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

Standard oil clearance:

0.030 to 0.065 mm (0.0012 to 0.0026 in.)

Remove the ring pins.

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

Protrusion height:

6.5 to 7.5 mm (0.26 to 0.30 in.)

Remove the stud bolts.

Using an E8 "TORX" socket, install the stud bolts.

Torque:

9.5 N*m{97 kgf*cm, 84 in.*lbf}