PROCEDURE
REMOVE INTAKE VALVE GUIDE BUSH
Heat the cylinder head to 80 to 100°C (176 to 212°F).
Using SST and a hammer, tap out the guide bushing.
REMOVE EXHAUST VALVE GUIDE BUSH
Heat the cylinder head to 80 to 100°C (176 to 212°F).
Using SST and a hammer, tap out the guide bushing.
INSTALL INTAKE VALVE GUIDE BUSH
Using a caliper gauge, measure the bushing bore diameter of the cylinder head.
| Inside diameter |
|---|
| 10.285 to 10.306 mm (0.4050 to 0.4057 in.) |
If the bushing bore diameter of the cylinder head is greater than 9.706 mm (0.3821 in.), machine the bushing bore to the dimension of 9.735 to 9.755 mm (0.3833 to 0.3841 in.).
| Bushing bore diameter mm (in.) |
Bushing size |
|---|---|
| 9.685 to 9.706 (0.3813 to 0.3821) |
STD |
| 9.735 to 9.755 (0.3833 to 0.3841) |
O/S 0.05 |
Heat the cylinder head to 80 to 100°C (176 to 212°F).
| *1 | 9.4 to 9.8 mm |
Using SST and a hammer, tap a new guide bushing in to the specified protrusion height.
| Protrusion height |
|---|
| 9.4 to 9.8 mm (0.370 to 0.386 in.) |
| *1 | Reamer |
Using a sharp 5 mm reamer, ream the guide bushing to obtain the standard oil clearance between the guide bushing and valve stem.
| Standard oil clearance |
|---|
| 0.025 to 0.060 mm (0.0010 to 0.0024 in.) |
INSTALL EXHAUST VALVE GUIDE BUSH
Using a caliper gauge, measure the bushing bore diameter of the cylinder head.
| Inside diameter |
|---|
| 10.285 to 10.306 mm (0.4050 to 0.4057 in.) |
If the bushing bore diameter of the cylinder head is greater than 9.706 mm (0.3821 in.), machine the bushing bore to the dimension of 9.735 to 9.755 mm (0.3833 to 0.3841 in.)
| Bushing bore diameter mm (in.) |
Bushing size |
|---|---|
| 9.685 to 9.706 (0.3813 to 0.3821) |
STD |
| 9.735 to 9.755 (0.3833 to 0.3841) |
O/S 0.05 |
Heat the cylinder head to 80 to 100°C (176 to 212°F).
Using SST and a hammer, tap a new guide bushing in to the specified protrusion height.
| Protrusion height |
|---|
| 9.4 to 9.8 mm (0.370 to 0.386 in.) |
Using a sharp 5 mm reamer, ream the guide bushing to obtain the standard oil clearance between the guide bushing and valve stem.
| Standard oil clearance |
|---|
| 0.030 to 0.065 mm (0.0012 to 0.0026 in.) |