Engine Compression
Check engine compression with engine at normal operating temperature at specified cranking speed, with all spark plugs removed and throttle wide open.
COMPRESSION SPECIFICATIONS
| Application | Specification | |||
|---|---|---|---|---|
| Compression Ratio | ||||
| MFI | 9.5:1 | |||
| TBI | 8.9:1 | |||
| Normal Compression Pressure | (1) 199 psi (14.0 kg/cm2 ) | |||
| Minimum Compression Pressure | (1) 170 psi (12.0 kg/cm2 ) | |||
| Maximum Variation Between Cylinders | 14 psi (1.0 kg/cm2 ) | |||
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