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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

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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