Engine Compression
Check pressure with engine at normal operating temperature, plugs removed, throttle valve wide open, and engine at cranking speed.
COMPRESSION SPECIFICATIONS
| Application | Specification | ||||
|---|---|---|---|---|---|
| Compression Ratio | |||||
| 1.6L | 9.0:1 | ||||
| 1.8L | |||||
| Carburated | 8.7:1 | ||||
| MPFI Turbo | 7.7:1 | ||||
| MPFI Non-Turbo | |||||
| California | 9.5:1 | ||||
| Federal | 9.0:1 | ||||
| SPFI | 9.5:1 | ||||
| Compression Pressure | |||||
| 1.6L | 175 psi (12.3 kg/cm2 ) | ||||
| 1.8L | |||||
| Carbureted | 161 psi (11.3 kg/cm2 ) | ||||
| MPFI Non-Turbo | |||||
| California | 168 psi (11.8 kg/cm2 ) | ||||
| Federal | 156 psi (11.0 kg/cm2 ) | ||||
| MPFI Turbo | 145 psi (10.2 kg/cm2 ) | ||||
| SPFI Turbo | 168 psi (11.8 kg/cm2 ) | ||||
| Minimum Compression Pressure | |||||
| 1.8L MPFI Turbo | 117 psi (8.2 kg/cm2 ) | ||||
| 1.8L SPFI | 139 psi (9.8 kg/cm2 ) | ||||
| 1.8L Turbo | 117 psi (8.2 kg/cm2 ) | ||||
| All Others | 132 psi (9.3 kg/cm2 ) | ||||
| Maximum Variation Between Cylinders | 28 psi (2.0 kg/cm2 ) | ||||