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 17 DTL |
|---|
| Cylinder head height 1) | mm | 105.75 – 106.10 |
| Valve seat width in cylinder head | | |
| Intake valve | mm | 1.3 – 2.0 |
| Exhaust valve | mm | 1.3 – 2.0 |
| Valve seat angle in cylinder head | | 90° |
| Valve guide inside diameter | | |
| Standard size | mm | 8.000 – 8.017 |
| Oversize (0.075) | mm | 8.075 – 8.092 |
| Oversize (0.150) | mm | 8.150 – 8.167 |
| Length of valve guide | | |
| Intake valve | mm | |
| Exhaust valve | mm | |
| Installation height of valve guide | | |
| Intake valve | mm | |
| Exhaust valve | mm | |
| Installation height of valves | | |
| Standard size | mm | |
| Oversize (0.075) | mm | |
| Oversize (0.150) | mm | |
| Engine | | X 17 DTL |
|---|
| Valve length | | |
| Standard size | | |
| | Intake valve (GM) | mm | 123.22 – 123.27 |
| | Exhaust valve (GM) | mm | 123.22 – 123.27 |
| Oversize (0.075) | | |
| | Intake valve (GM K1) | mm | – |
| | Exhaust valve (GM K1) | mm | – |
| Oversize (0.150) | | |
| | Intake valve (GM K2) | mm | – |
| | Exhaust valve (GM K2) | mm | – |
| Ø Valve stem | | |
| Standard size | | |
| | Intake valve (GM) | mm | 7.970 – 7.985 |
| | Exhaust valve (GM) | mm | 7.955 – 7.970 |
| Oversize (0.075) | | |
| | Intake valve (GM K1) | mm | 8.045 – 8.060 |
| | Exhaust valve (GM K1) | mm | 8.030 – 8.045 |
| Oversize (0.150) | | |
| | Intake valve (GM K2) | mm | 8.120 – 8.135 |
| | Exhaust valve (GM K2) | mm | 8.105 - 8.120 |
| Engine | | X 17 DTL |
|---|
| Valve stem play | | |
| Intake valve | mm | 0.015 – 0.047 |
| Exhaust valve | mm | 0.030 – 0.062 |
| perm. runout of the valve stem | mm | 0.03 |
| Ø Valve head | | |
| Intake valve | mm | 36.0 |
| Exhaust valve | mm | 32.0 |
| Valve seat angle at valve head | | 92° |
| Valve rotator | | |
| Intake valve | | No code |
| Exhaust valve | | No code |
| Engine | | X 17 DTL |
|---|
| Camshaft | | |
| Cam lift | | |
| | Intake | mm | 9.40 |
| | Exhaust | mm | 9.40 |
) Resurfacing of the cylinder head is only permissible within the specified tolerance. If the minimum dimension of 105.75 mm is not met, replace the cylinder head.
