Mechanical Inspection: Compression
Check engine mechanical condition using a compression gauge, vacuum gauge or an engine analyzer. See engine analyzer manual for specific instructions.
4-CYLINDER COMPRESSION SPECIFICATIONS
| Application | Specification | ||
|---|---|---|---|
| Normal Compression Pressure | |||
| Altima | 178 psi (12.5 kg/cm2 ) | ||
| NX & Sentra | |||
| 1.6L | 192 psi (13.5 kg/cm2 ) | ||
| 2.0L | 178 psi (12.5 kg/cm2 ) | ||
| Pickup | 192 psi (13.5 kg/cm2 ) | ||
| 240SX | 179 psi (12.6 kg/cm2 ) | ||
| Minimum Compression Pressure | |||
| Altima | 149 psi (10.5 kg/cm2 ) | ||
| NX & Sentra | |||
| 1.6L | 164 psi (11.5 kg/cm2 ) | ||
| 2.0L | 149 psi (10.5 kg/cm2 ) | ||
| Pickup | 142 psi (10.0 kg/cm2 ) | ||
| 240SX | 151 psi (10.6 kg/cm2 ) | ||
| Maximum Variation Between Cylinders | |||
| All Models | 14 psi (1.0 kg/cm2 ) | ||
V6 COMPRESSION SPECIFICATIONS
| Application | Specification | ||||
|---|---|---|---|---|---|
| Normal Compression Pressure | |||||
| Maxima | |||||
| VE30DE | 183 psi (12.9 kg/cm2 ) | ||||
| VG30E | 173 psi (12.2 kg/cm2 ) | ||||
| Pathfinder, Pickup & Quest | 173 psi (12.2 kg/cm2 ) | ||||
| 300ZX | |||||
| Non-Turbo | 186 psi (13.1 kg/cm2 ) | ||||
| Turbo | 171 psi (12.0 kg/cm2 ) | ||||
| Minimum Compression Pressure (1) | |||||
| Maxima | |||||
| VE30DE | 142 psi (10.0 kg/cm2 ) | ||||
| VG30E | 128 psi (9.0 kg/cm2 ) | ||||
| Pathfinder, Pickup & Quest | 128 psi (9.0 kg/cm2 ) | ||||
| 300ZX | |||||
| Non-Turbo | 142 psi (10.0 kg/cm2 ) | ||||
| Turbo | 128 psi (9.0 kg/cm2 ) | ||||
| Maximum Variation Between Cylinders | |||||
| All Models | 14 psi (1.0 kg/cm2 ) | ||||
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