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Engine Compression

Check engine compression with engine at normal operating temperature and specified cranking speed, all spark plugs removed and throttle wide open.

COMPRESSION SPECIFICATIONS

Application Specification
Compression Ratio
Avenger & Sebring 9.5:1
Minimum Compression Pressure
Avenger & Sebring (1)(2) 139 psi (9.8 kg/cm2 )
Cirrus & Stratus (1)(3) 178 psi (12.5 kg/cm2 )
(1) Engine speed at 250-400 RPM.
(2) Maximum difference between each cylinder should not exceed 14 psi (.98 kg/cm2 ).
(3) Maximum difference between each cylinder should not exceed 25 percent.