Illustration
- 1. Cylinder head height
- 2. Installation height of valve guide
- 3. Installation height of valve
- 4. Valve seat width in cylinder head
- 5. Valve seat angle in cylinder head
- 6. Valve stem diameter
- 7. Valve seat angle at valve
- 8. Valve length
- 9. Valve head – diameter
| Engine | | X 16 SZR, Z 16 SE |
|---|
| Cylinder head height 1) | mm | 95.90 – 96.10 |
| Valve seat width in cylinder head | | |
| Intake valve | mm | 1.3 – 1.5 |
| Exhaust valve | mm | 1.6 – 1.8 |
| Valve seat angle in cylinder head | | 90° |
| Valve guide inside diameter | | |
| Standard size | mm | 7.030 – 7.050 |
| Oversize (0.075) | mm | 7.105 – 7.125 |
| Length of valve guide | | |
| Intake valve | mm | 45.5 |
| Exhaust valve | mm | 45.5 |
| Installation height of valve guide | mm | 80.85 – 81.25 |
| Installation height of valves | mm | 13.75 – 14.35 |
| Engine | | X 16 SZR, Z 16 SE |
|---|
| Valve length | | |
| Standard size | | |
| | Intake valve (GM) | mm | 101.65 – 101.95 |
| | Exhaust valve (GM) | mm | 101.15 – 101.85 |
| Oversize (0.075) | | |
| | Intake valve (GM K1) | mm | 101.25 – 101.55 |
| | Exhaust valve (GM K1) | mm | 100.75 – 101.45 |
| Ø Valve stem | | |
| Standard size | | |
| | Intake valve (GM) | mm | 6.998 – 7.012 |
| | Exhaust valve (GM) | mm | 6.978 – 6.992 |
| Oversize (0.075) | | |
| | Intake valve (GM K1) | mm | 7.073 – 7.087 |
| | Exhaust valve (GM K1) | mm | 7.053 – 7.067 |
| Engine | | X 16 SZR, Z 16 SE |
|---|
| Valve stem play | | |
| Intake valve | mm | 0.018 – 0.052 |
| Exhaust valve | mm | 0.038 – 0.072 |
| perm. runout of the valve stem | mm | 0.03 |
| Ø Valve head | | |
| Intake valve | mm | 38.0 |
| Exhaust valve | mm | 31.0 |
| Valve seat angle at valve head | | 92° |
| Valve rotator | | |
| Intake valve | | No code |
| Exhaust valve | | No code |
| Engine | | X 16 SZR, Z 16 SE |
|---|
| Camshaft | | |
| Cam lift | | |
| | Intake | mm | 9.08 |
| | Exhaust | mm | 9.99 |
) Resurfacing of the cylinder head is not permitted.
