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Home >> Hyundai >> 1987 >> Excel Base, 4D Hatchback >> Repair and Diagnosis (Single Page) >> Engine Performance >> Adjustment >> Tune-Up - 4-CYL >> Testing >> Engine Compression

Engine Compression

Check compression at 250 RPM with engine warm, all spark plugs removed, and throttle wide open.

COMPRESSION SPECIFICATIONS

Application Specification
Compression Ratio 9.4:1
Compression Pressure (Normal) 164 psi (11.5 kg/cm2 )
Maximum Variation Between Cylinders 28 psi (2.0 kg/cm2 )