Check compression with engine warm, all spark plugs removed and throttle wide open. Crank engine through at least 6 compression strokes per cylinder to determine engine compression.
| Application | Specification | ||
|---|---|---|---|
| Compression Ratio | |||
| 2.22L Turbo | 7.8:1 | ||
| 2.22L Non-Turbo | 8.5:1 | ||
| 2.3L | 10:1 | ||
| Compression Pressure (1) | |||
| 2.22L Non-Turbo | |||
| Normal (New Engine) | 130-174 psi (9-12 kg/cm 2 ) | ||
| Minimum | 100 psi (7 kg/cm 2 ) | ||
| 2.22L Turbo | |||
| Normal (New Engine) | 100-130 psi (7-9 kg/cm 2 ) | ||
| Minimum | 72 psi (5 kg/cm 2 ) | ||
| Max. Variation Between Cylinders | |||
| 2.22L Non-Turbo | 29 psi (2 kg/cm 2 ) | ||
| 2.22L Turbo | 44 psi (3 kg/cm 2 ) | ||
| (1) Specification is unavailable for 2.3L. | |||
| (1) | Specification is unavailable for 2.3L. |
COMPRESSION SPECIFICATIONS