lemon-mirror:
Home >> Porsche >> 1981 >> 928 Automatic Trans >> Repair and Diagnosis >> Engine Performance >> Tune-Up >> Tune-Up - V8 >> Compression Pressure >> Notes

Compression Pressure: Notes

With engine at normal operating temperature, remove all plugs and allow 12 compression strokes per cylinder. Pressure should not vary more than 21 psi (1.5 kg/cm2 ) between cylinders.