Engine Compression
Test compression with engine at normal operating temperature, spark plugs removed, throttle valve wide open and engine at cranking speed (300 RPM).
COMPRESSION SPECIFICATIONS
| Application | Ratio | ||
|---|---|---|---|
| Compression Ratio | |||
| I-Mark | |||
| 1.5L | 9.6:1 | ||
| 1.5L Turbo | N/A | ||
| P'UP | |||
| 1.9L | 8.4:1 | ||
| 2.3L | 8.3:1 | ||
| Trooper II (2.3L) | 8.3:1 | ||
| Compression Pressure | |||
| I-Mark | 178 psi (12.5 kg/cm2 ) | ||
| P'UP & Trooper II | 171 psi (12 kg/cm2 ) | ||
| Minimum Compression Pressure | |||
| I-Mark | 125 psi (8.8 kg/cm2 ) | ||
| P'UP & Trooper II | 120 psi (8.4 kg/cm2 ) | ||
| Maximum Variation Between Cylinders | |||
| I-Mark | 7 psi (0.6 kg/cm2 ) | ||
| P'UP & Trooper II | 9 psi (0.6 kg/cm2 ) | ||