Mechanical Inspection: Compression
Check engine mechanical condition with a compression gauge, vacuum gauge or an engine analyzer (capable of performing a relative compression test). See engine analyzer instruction manual for availability and description of relative compression feature.
ENGINE COMPRESSION
| Application | Specification | |
|---|---|---|
| Normal Compression Pressure | ||
| Corolla (4AF) | 191 psi (13.4 kg/cm2 ) | |
| Pickup (22R) | 171 psi (12.0 kg/cm2 ) | |
| Tercel | 185 psi (13.0 kg/cm2 ) | |
| Minimum Compression Pressure All Models | 142 psi (10.0 kg/cm2 ) | |
| Maximum Variation Between Cylinders All Models | 14 psi (1.0 kg/cm2 ) | |