Engine Compression
Check compression pressure with engine at normal operating temperature and throttle valve fully open. Crank engine through at least 8 revolutions.
COMPRESSION SPECIFICATIONS
| Application | Specification | |
|---|---|---|
| Compression Ratio | ||
| 190D | 22.0:1 | |
| 300 Series | 21.5:1 | |
| Compression Pressure | ||
| Normal | 348-435 psi (24.4 - 30.6 kg/cm2 ) | |
| Minimum | 218 psi (15.3 kg/cm2 ) | |
| Maximum Variation Between Cylinders | 44 psi (3.1 kg/cm2 ) | |