Engine Compression
Check engine compression with engine at normal operating temperature at specified cranking speed, all spark plugs removed (on dual plugs, remove exhaust side only) and throttle wide open.
COMPRESSION SPECIFICATIONS
| Application | Specification | |||
|---|---|---|---|---|
| Compression Ratio | ||||
| VG30E | 9.0:1 | |||
| VE30DE | 10.0:1 | |||
| Normal Compression Pressure | ||||
| VG30E | 173 psi (12.2 kg/cm2 ) | |||
| VE30DE | 183 psi (12.9 kg/cm2 ) | |||
| Minimum Compression Pressure (1) | ||||
| VG30E | 128 psi (9.0 kg/cm2 ) | |||
| VE30DE | 142 psi (10.0 kg/cm2 ) | |||
| Maximum Variation Between Cylinders | 14 psi (1.0 kg/cm2 ) | |||
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