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 | ||||
| Non-Turbo | 10.5:1 | |||
| Turbo | 8.5:1 | |||
| Normal Compression Pressure | ||||
| Non-Turbo | 186 psi (13.1 kg/cm2 ) | |||
| Turbo | 171 psi (12.0 kg/cm2 ) | |||
| Minimum Compression Pressure (1) | ||||
| Non-Turbo | 142 psi (10.0 kg/cm2 ) | |||
| Turbo | 128 psi (9.0 kg/cm2 ) | |||
| Maximum Variation Between Cylinders | 14 psi (1.0 kg/cm2 ) | |||
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