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Home >> Plymouth >> 1988 >> Gran Fury Base >> Repair and Diagnosis (Single Page) >> Engine Performance >> Adjustment >> Tune-Up - V8 >> Testing >> Engine Compression

Engine Compression

Before performing compression test or cranking engine using remote starter switch, disconnect coil wire from distributor and secure to ground. Check compression pressure with engine at normal operating temperature, all spark plugs removed and throttle valve open.

COMPRESSION SPECIFICATIONS

Application Compression Ratio
2-Bbl 9.0:1
4-Bbl 8.4:1
Compression Pressure Minimum 100 psi (7 kg/cm2 )
Maximum Cylinder Variation 25 psi (1.7 kg/cm2 )