Centrifugal force adjustment ignition distributor

  • Moin,

    ...and another question about the 964 ignition distributor:

    does anyone know the data of the centrifugal adjustment in the ignition distributor above the engine speed? Is there a diagram to be found somewhere?

    Greetings

    Fokke

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    911 SC, MJ 78, USA, 930/04
    944 S2, MJ 91
    Honda Zoomer Tokio Style

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  • Centrifugal force, ignition timing at DME ????

    Am I just learning something new again ?

    Michael :/

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  • ... exactly, do not know me with the double distributor (yet).
    It has an identical, mechanical centrifugal adjustment in both distributor heads of estimated 15-20 degrees early ignition. The DME overlays the adjustment probably additionally electronically in dependence of the sensors at the flywheel and probably further parameters...

    For the old 11's there are diagrams for the centrifugal force adjustment/vacuum adjustment...what do you know about the 964?

    Is there anything about this in the TyMaTo (...don't have it)?

    Fokke

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    911 SC, MJ 78, USA, 930/04
    944 S2, MJ 91
    Honda Zoomer Tokio Style

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  • Hello,

    the centrifugal adjustment is for better positioning of the distributor finger.

    The ignition timing comes from the DME.

    Greetings Hermann

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    964 C2 Cabriolet, Erstzulassung: 05/1993

  • Hello,

    the centrifugal adjustment is for better positioning of the distributor finger.

    The ignition timing comes from the DME.

    Greeting Hermann

    I think so too, because if the DME sets the ignition timing to early, the distributor finger must also be approximately at the height of the respective contact of the cylinder plug wire to be ignited.

    Greetings Ralf

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    Gruß Ralf

    964 C2 Tiptronic Cabrio Bj 91 LMM 220

  • ah, ok, that makes sense...so a mechanical tracking of the distributor finger to make the motronic work in the right window of cap and distributor....

    ...something learned...

    Thanks!

    Fokke

    This post has been automatically translated.

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    911 SC, MJ 78, USA, 930/04
    944 S2, MJ 91
    Honda Zoomer Tokio Style

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