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?
> > >
> > > Best--Michael Oritt
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