Engine Compression
Check compression with engine at normal operating temperature. Remove air cleaner and spark plugs. Place throttle and choke valve in wide open position and crank engine at normal speed (300 RPM). Crank engine at least 6 strokes per cylinder to determine engine compression.
COMPRESSION SPECIFICATIONS
| Application | Specification | |||
|---|---|---|---|---|
| Compression Ratio | ||||
| 1.3L | 10.0:1 | |||
| 1.5L | ||||
| Carbureted | ||||
| Civic CRX DX | 9.6:1 | |||
| Hatchback, Sedan & Station Wagon | 9.2:1 | |||
| Fuel Injected | ||||
| Civic Hatchback Si | 8.7:1 | |||
| Civic CRX Si | 9.2:1 | |||
| Compression Pressure | ||||
| Normal | ||||
| 1.3L | 175 psi (12.3 kg/cm2 ) | |||
| 1.5L | ||||
| Carbureted | 164 psi (11.5 kg/cm2 ) | |||
| Fuel Injected | 185 psi (13 kg/cm2 ) | |||
| Minimum | ||||
| 1.3L | 142 psi (10 kg/cm2 ) | |||
| 1.5L | ||||
| Carbureted | 135 psi (9.5 kg/cm2 ) | |||
| Fuel Injected | 156 psi (11 kg/cm2 ) | |||
| Max. Variation Between Cylinders | 28 psi (2 kg/cm2 ) | |||