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Home >> Porsche >> 1978 >> 924 Automatic Trans >> Repair and Diagnosis >> Engine Performance >> Tune-Up >> Tune-Up Procedures - 4-Cylinder >> Ignition Timing >> 1974-76 Models

1974-76 Models

Check or adjust ignition timing with engine at specified RPM. Disconnect and plug both distributor vacuum advance hoses. Adjust timing by turning distributor until mark aligns with timing pointer.