Engine Compression
Warm engine to normal operating temperature. Disconnect single wire from negative terminal of ignition coil. Check compression with all spark plugs removed, throttle valve wide open and at normal cranking speed (250-300 RPM).
CAUTION:
Failure to disconnect ignition coil negative terminal may cause damage to ignition system control unit(s).
COMPRESSION SPECIFICATIONS
| Application | Specification | ||
|---|---|---|---|
| Compression Ratio | |||
| 240 | 9.8:1 | ||
| 740 & 940 | |||
| Non-Turbo | 9.8:1 | ||
| Turbo | 8.7:1 | ||
| 960 | 10.7:1 | ||
| Compression Pressure (Minimum) | |||
| 240, 740 & 940 | 128 psi (9 kg/cm2 ) | ||
| 960 | 184 psi (13 kg/cm2 ) | ||