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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 )
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