Cylinder Block & Piston
WARNING: This page is about a different car, the 2022 Subaru WRX. However, it is still accessible from the selected car via links, so may be relevant.
| Cylinder block warpage (Mating surface with cylinder head) |
mm (in) | Limit | 0.025 (0.0010) | |||||
| Grinding limit of cylinder block | mm (in) | 204.95 (8.0689) or less | ||||||
| Height of cylinder block | mm (in) | Standard | 205.0 (8.0709) | |||||
| Inner diameter of cylinder liner | mm (in) | Cylinder bore size mark A | Standard | 94.005 - 94.015 (3.7010 - 3.7014) | ||||
| Cylinder bore size mark B | Standard | 93.995 - 94.005 (3.7006 - 3.7010) | ||||||
| Cylindricality of cylinder liner | mm (in) | Limit | 0.030 (0.0012) | |||||
| Out-of-roundness of cylinder liner | mm (in) | Limit | 0.030 (0.0012) | |||||
| Piston grade point | mm (in) | 37.0 (1.4567) | ||||||
| Piston outer diameter | mm (in) | Standard Size |
Grade A | Standard | 93.985 - 93.995 (3.7002 - 3.7006) | |||
| Grade B | Standard | 93.975 - 93.985 (3.6998 - 3.7002) | ||||||
| 0.25 (0.0098) oversize | Standard | 94.225 - 94.245 (3.7096 - 3.7104) | ||||||
| 0.50 (0.0197) oversize | Standard | 94.475 - 94.495 (3.7195 - 3.7203) | ||||||
| Clearance between cylinder liner and piston | mm (in) | Standard | 0.010 - 0.030 (0.0004 - 0.0012) | |||||
| Inner diameter of cylinder liner boring limit (diameter) | mm (in) | 94.505 (3.7207) or less | ||||||