Mechanical Inspection: Compression
Check engine mechanical condition using a compression gauge, vacuum gauge or engine analyzer. See engine analyzer manual for specific instructions. See COMPRESSION SPECIFICATIONS table.
COMPRESSION SPECIFICATIONS
| Application | Specification | |||
|---|---|---|---|---|
| Compression Ratio | ||||
| Storm (SOHC) | 9.1:1 | |||
| Storm GSi (DOHC) | 9.7:1 | |||
| Normal Compression Pressure | ||||
| Storm (SOHC) | 159 psi (11.2 kg/cm2 ) | |||
| Storm GSi (DOHC) | 170 psi (12.0 kg/cm2 ) | |||
| Minimum Compression Pressure | (1) | |||
| Maximum Variation Between Cylinders | 14 psi (1.0 kg/cm2 ) | |||
|
||||