Not sure how old mine is, but it has been in the car for at least 6 years.
In any event, I carry a spare one just in case.
tom
> [Original Message]
> From: Blue One Hundred <international_investor@yahoo.com>
> To: <tomfelts@earthlink.net>; <Awgertoo@aol.com>; <healeys@autox.team.net>
> Date: 7/20/04 9:46:57 AM
> Subject: Re: BN7--Intermittent miss, continued
>
> Tom -
>
> If you have a very old Pertronix (let's call it phase
> - 1 design) the magnetic rotor can come into contact
> with the contacts plate and delaminate (this happened
> to me). When the magnetic rotor started to
> delaminate... I got similar types of symptoms to
> Micheal.
>
> The old magnetic rotors (phase 1 design) were too
> big... Pertronix has since fixed this desiagn fault
> and they replaced my Pertronix unit with a new unit
> FOC eventhough the old unit was probably 5 years old
> when it broke.
>
> Regards,
>
> Alan
>
> '53 BN1 '64 BJ8
>
>
> --- tom felts <tomfelts@earthlink.net> wrote:
> > Alan---what effect does age have on a Pertronix?
> >
> > Thanks
> > tom
> >
> >
> >
> >
> > > [Original Message]
> > > From: Blue One Hundred
> > <international_investor@yahoo.com>
> > > To: <Awgertoo@aol.com>; <healeys@autox.team.net>
> > > Date: 7/20/04 12:14:47 AM
> > > Subject: Re: BN7--Intermittent miss, continued
> > >
> > > Michael -
> > >
> > > Are you using solid wire or graphite core spark
> > plug
> > > wires? If you are using graphite wires, that can
> > be
> > > the source of your weak spark problem (you get a
> > miss
> > > under the conditions you are talking about if you
> > have
> > > weak spark). Also... is your coil new or very
> > old?
> > > Is your engine properly grounded? Are you using
> > > points and condensor or Pertronix system? If it's
> > a
> > > pertronix system, how old is it? Answer these
> > > questions and then we can better diagnose.
> > >
> > > Regards,
> > >
> > > Alan
> > >
> > > '53 BN1 '64 BJ8
> > >
> > > --- Awgertoo@aol.com wrote:
> > > > I posted a few weeks back about an intermittent
> > miss
> > > > on the 3000, to which I
> > > > received a number of helpful, if inconsistent,
> > > > replies--some suggesting
> > > > mixture and others spark.. In the interim, the
> > > > intermittency has become "less
> > > > intermittent", appears pretty regularly when
> > > > accelerating slowly or moderately from
> > > > low RPM's (2000 or so) and seems to be more of a
> > > > fluttering at constant
> > > > cruising speeds (3000 or so) but does NOT appear
> > > > under load--there is no miss under
> > > > hard acceleration all the way up to redline.
> > > >
> > > > Under the theory that most carburettor problems
> > are
> > > > spark-related I thought
> > > > that I would start with the ignition system. In
> > > > doing an "in-the-dark" test
> > > > for visible spark leaks tonight I happened to
> > rest
> > > > my forearm on both the
> > > > ignition cap and fender and got a definite shock
> > > > which seems to be coming from
> > > > around the coil lead where it comes out of the
> > cap,
> > > > though nothing was visible. I
> > > > could not find any crack or arc trail on the cap
> > > > either in or out, but I
> > > > wonder if this is signifigant?
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