Mechanical Inspection: Compression
Check engine mechanical condition using a compression gauge, vacuum gauge or an engine analyzer. See engine analyzer manual for specific instructions.
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 ) | |||
|
||||