Cylinder Head (Y 20 Dth, Y 22 Dtr)
Illustration
- Cylinder head height
- Installation height of valve guide
- Installation height of valve
- Valve seat width in cylinder head
- Valve seat angle in cylinder head
- Valve stem diameter
- Valve seat angle at valve
- Valve length
- Valve head - diameter
Cylinder Head
| Engine | | X 20 DTH, Y 22 DTR |
|---|
| Cylinder head height | mm | 140 |
| Valve seat width in cylinder head | | |
| Intake valve | mm | 1.4 � 1.8 |
| Exhaust valve | mm | 1.4 � 1.8 |
| Valve seat angle in cylinder head | | 90� |
| Valve guide inside diameter | | |
| Standard size | mm | 6.000 � 6.012 |
| Oversize (0.075) | mm | 6.075 � 6.090 |
| Oversize (0.150) | mm | 6.150 � 6.165 |
| Length of valve guide | | |
| Intake valve | mm | 44.75 � 45.25 |
| Exhaust valve | mm | 34.75 � 35.25 |
| Installation height of valve guide | | |
| Intake valve | mm | 11.2 � 11.5 |
| Exhaust valve | mm | 11.2 � 11.5 |
| Installation height of valves | | |
| Standard size | mm | 37.0 � 37.6 |
| Oversize (0.075) | mm | 36.6 � 37.2 |
| Oversize (0.150) | mm | 36.6 � 37.2 |
See corresponding illustration.
Cylinder Head
| Engine | | X 20 DTH, Y 22 DTR |
|---|
| Valve length | | |
| Standard size | | |
| Intake valve (GM G) | mm | 96.90 � 97.30 |
| Exhaust valve (GM P) | mm | 96.90 � 97.30 |
| Oversize (0.075) | | |
| Intake valve (GM GK1) | mm | 96.50 � 96.90 |
| Exhaust valve (GM PK1) | mm | 96.50 � 96.90 |
| Oversize (0.150) | | |
| Intake valve (GM GK2) | mm | 96.50 � 96.90 |
| Exhaust valve (GM PK2) | mm | 96.50 � 96.90 |
| � Valve stem | | |
| Standard size | | |
| Intake valve (GM G) | mm | 5.955 � 5.970 |
| Exhaust valve (GM P) | mm | 5.945 � 5.960 |
| Oversize (0.075) | | |
| Intake valve (GM GK1) | mm | 6.030 � 6.045 |
| Exhaust valve (GM PK1) | mm | 6.020 � 6.035 |
| Oversize (0.150) | | |
| Intake valve (GM GK2) | mm | 6.105 � 6.120 |
| Exhaust valve (GM PK2) | mm | 6.095 � 6.110 |
See corresponding illustration.
Cylinder Head
| Engine | | X 20 DTH, Y 22 DTR |
|---|
| Valve stem play | | |
| Intake valve | mm | 0.030 � 0.057 |
| Exhaust valve | mm | 0.040 � 0.067 |
| Perm. runout of the valve stem | mm | 0.03 |
| � Valve head | | |
| Intake valve | mm | 29.0 |
| Exhaust valve | mm | 26.0 |
| Valve seat angle at valve head | | 90� 40' |
| Valve rotator | | |
| Intake valve | | none |
| Exhaust valve | | none |
| Engine | | X 20 DTH, Y 22 DTR |
|---|
| Camshaft | | |
| Cam lift | | |
| Intake | mm | 8.5 |
| Exhaust | mm | 8.5 |
See corresponding illustration.
