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Home >> Plymouth >> 1978 >> Arrow Base, Automatic Trans >> Repair and Diagnosis (Single Page) >> Engine Performance >> Tune-Up >> Tune-Up Procedures - 4-Cylinder >> Engine Compression

Engine Compression

Check compression pressure with engine at normal operating temperature, choke and throttle valves wide open and engine at cranking speed (250 RPM). Maximum variation between cylinders should not exceed 15 psi (1.1 kg/cm2 ).

COMPRESSION PRESSURE SPECIFICATIONS

Application Pressure psi (kg/cm2 )
All Models 149 (10.5)