Cylinder Head
- 1. Valve guide outer diameter
- 2. Cylinder head height
- 3. Valve seat width in cylinder head
- 4. Valve seat angle in cylinder head
- 5. Valve stem diameter
- 6. Valve seat angle at valve
- 7. Valve length
- 8. Valve head diameter
- 9. Valve guide inner diameter
- 10. Valve guide length
- 11. Installation height of valve guide
| Engine | | Y 13 DT, Z 13 DT, Z 13 DTJ |
|---|
| Height of cylinder head 1) | mm | 105.50 +/- 0.05 |
| Maximum deflection of cylinder head | mm | 0.10 |
| Valve seat angle at valve head | | 45° +/- 20' |
| Valve guide - outer diameter | | |
| Standard dimension | mm | 11.01 - 11.03 |
| Oversize I | mm | 0.05 |
| Oversize II | mm | 0.10 |
| Oversize III | mm | 0.25 |
| Valve guide inner diameter | mm | 6.020 - 6.038 |
| Length of valve guide | | |
| Intake valve | mm | 43.50 |
| Exhaust valve | mm | 43.50 |
| Installation height of valves | mm | 36.95 - 37.85 |
Grind Cylinder Head
| Installed cylinder head gasket | Cylinder head height | Grind cylinder head | New cylinder head gasket |
|---|
| No hole | 105.4 +/- 0.05 mm | 0.10 mm | One hole |
| One hole | 105.40 +/- 0.05 mm | 0.10 mm | Two holes |
| One hole | 105.30 +/- 0.05 mm | 0.20 mm | Two holes |
| Two holes | | Machining not possible | Replace cylinder head |
Valves
| Engine | | Z 13 DT, Z13DTJ |
|---|
| Valve length | | | | |
| | Intake valve | mm | 107.95 |
| | Exhaust valve | mm | 107.95 |
| Perm. runout of the valve stem | mm | 0.028 - 0.064 |
| Valve stem diameter | | |
| | Intake valve | mm | 5.90 - 5.94 |
| | Exhaust valve | mm | 5.90 - 5.94 |
| Valve spring | | |
| Free length | | |
| | Intake valve | mm | 37.90 |
| | Exhaust valve | mm | 37.90 |
| Camshaft | | |
| Cam lift | | |
| | Intake valve | mm | 6.40 |
| | Exhaust valve | mm | 7.50 |
| Valve head diameter | | |
| | Intake valve | mm | 22.00 |
| | Exhaust valve | mm | 22.00 |
Camshaft Housing
| Engine | | Z 13 DT, Z13DTJ |
|---|
| Diameter of camshaft bearing in camshaft housing | | |
| Bearing 1 | mm | 38.545 - 35.570 |
| Bearing 2 | mm | 38.045 - 38.070 |
| Bearing 3 | mm | 30.045 - 30.070 |
| Camshaft bearing journal diameter | | |
| Bearing 1 | mm | 38.500 - 35.515 |
| Bearing 2 | mm | 38.000 - 38.015 |
| Bearing 3 | mm | 30.000 - 30.015 |
) The cylinder head may only be machined down within the tolerance. If it is lower than the minimum dimension of 105.3 +/- 0.05 mm it must be replaced.
