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 | Specification | |
|---|---|---|
| Compression Ratio | ||
| I-Mark | 8.5:1 | |
| P'UP & Trooper II | 8.4:1 | |
| Compression Pressure | ||
| New Engine | 171 psi (12 kg/cm2 ) | |
| Minimum | 120 psi (8.4 kg/cm2 ) | |
| Maximum Variation Between Cylinders | 9 psi (0.6 kg/cm2 ) | |