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Home >> BMW >> 1981 >> 320i >> Repair and Diagnosis (Single Page) >> Engine Performance >> Tune-Up >> Tune-Up - 4 CYL >> Compression Pressure >> Compression Pressure Specifications
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Compression Pressure Specifications

Condition Pressure
Good Above 149 psi (10.5 kg/cm2 )
Normal 135-149 psi (9.5-10.5 kg/cm2 )
Poor Below 128 psi (9.0 kg/cm2 )
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