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Home >> BMW >> 1982 >> 320i Automatic Trans >> Repair and Diagnosis >> Engine Performance >> Specifications >> Tune-Up - 4 CYL >> Engine Compression

Engine Compression

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Check compression with battery fully charged, throttle fully open and warm engine at cranking speed.

COMPRESSION SPECIFICATIONS

Compression Ratio 8.8:1
Compression Pressure 142 psi (9.9 kg/cm2 )
Max. Variation Between Cylinders 15%