Re: [T3] Ignition Timing

["Keith Park" <topnotch@nycap.rr.com>]

>

Interesting... Ill add that my complaints with Pertronix is quality
control... they are made cheap and not to last .

Keith


> I think the real weakness of the Pertronix is the virtual impossibility of
> controlling the magnetic fields well enough to give consistent timing
signals.
> I believe what you are seeing is just normal variation of the Pertronic
system.
> This has always bothered me, because it is notoriously difficult to
control
> magnetic fields in general, and permanent magnets in particular, plus
these
> sensors are working in the fringing fields of the magnets where the field
> strength is a very strong function of the distance. So a small amount of
radial
> play in the shaft can have a huge effect on the timing.
>
> I never thought about using the original cam lobes to help shape and
control
> the Pertronic PM fields. No doubt there is some effect, but I'd be
surprised if
> it was useful. Interesting thought, though.
>
> --
> *******************************
> Jim Adney, jadney@vwtype3.org
> Madison, Wisconsin, USA
> *******************************
>
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