All,
Try cleaning the low voltage ignition connections, especially on the
tach. I had this problem too; engine ran smoothly on points, misfired
on the Crane and later on the Pertronix. When two new electronic
ignition systems malfunctioned shortly after installation, I decided
that the fault might be in my '69 B's wiring. The main prob was the
bullet connectors on the shunt tach. Since I cleaned those connections
the Pertronix has functioned flawlessly for a couple of years.
I reason that the electronic ignitions draw more current than the
points & condenser setup, so the resistance in corroded connections has
greater effect.
I still carry a spare breaker plate with points and condenser
installed, JIC. ;^)
Cheers,
CR
"Kai M. Radicke" wrote:
>
> > Spridgeteers,
> >
> > My Ignitor failed this evening on the way home from work. I had the
> > old dizzy with points in the boot, so I popped that in and was on my
> > way. Of course, it was a little dramatic when it failed since there
> > was all kinds of backfiring and shuddering. There was no warning.
> > Lesson learned, back to points.
> >
> > Jeff
>
> Mine failed Tuesday morning, same symptoms... backfiring and shuddering.
> Funny thing was, that if you were to take a lead and give the coil straight
> positive power from the battery it would run fine. Oh well, rebuild my
> distributor today... and it and new points (and condenser) will be back in
> when I get to it.
>
> --
> Kai M. Radicke -- kai@radiohead.net
> 1974 Triumph TR-6S (as in supercharged!)
> Now with 13 degree mechanical advance plate...
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