Engine Compression
Measure compression pressure with engine at normal operating temperature, spark plugs removed, throttle and choke valves wide open and engine at cranking speed.
ENGINE COMPRESSION SPECIFICATIONS
| Application | Specification | |
|---|---|---|
| Compression Ratio | ||
| 304" | 8.4:1 | |
| 360" & 401" | 8.25:1 | |
| Recommended Fuel | Unleaded (87 AKI Minimum) | |
| Compression Pressure (All) | 120-150 psi | |
| Maximum Pressure Variation | 20 psi | |