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Home >> BMW >> 1981 >> 633CSi Automatic Trans >> Repair and Diagnosis (Single Page) >> Engine Performance >> Tune-Up >> Tune-Up - 6 CYL >> Ignition Timing >> Notes
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Ignition Timing: Notes

  1. Check and adjust timing with engine at normal operating temperature and distributor vacuum hoses disconnected. Connect timing light, start engine and increase engine speed to specified timing RPM. Steel ball embedded in flywheel (long pin on Auto. Trans. models) should line up with pointer attached to hole in flywheel housing.
  2. Loosen distributor clamp, turn distributor until proper timing is achieved and tighten clamp. Connect distributor vacuum hoses and set idle speed to specified RPM.
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