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 | ||||
| Accord | ||||
| Carbureted | 9.1:1 | |||
| Fuel Injected | 8.8:1 | |||
| Prelude | ||||
| 1.8L | 9.4:1 | |||
| 2.0L | 8.8:1 | |||
| Compression Pressure | ||||
| Normal | ||||
| Accord | 175 psi (12.3 kg/cm2 ) | |||
| Carbureted | 171 psi (12.0 kg/cm2 ) | |||
| Fuel Injected | 178 psi (12.5 kg/cm2 ) | |||
| Prelude | ||||
| 1.8L | 185 psi (13 kg/cm2 ) | |||
| 2.0L | 178 psi (12.5 kg/cm2 ) | |||
| Minimum | ||||
| Accord | ||||
| Carbureted | 142 (10.0 kg/cm2 ) | |||
| Fuel Injected | 149 (10.5 kg/cm2 ) | |||
| Prelude | ||||
| 1.8L | 156 psi (11 kg/cm2 ) | |||
| 2.0L | 149 psi (10.5 kg/cm2 ) | |||
| Max. Variation Between Cylinders | 28 psi (2 kg/cm2 ) | |||