[Healeys] Petronix Ignitor

[Oudesluys]

Alan,
In the instructions I got with my Pertronix years ago it was clearly 
stated that the (total) resistance of the coil (or coil plus ballast 
resistor) should be at least 3 Ohms. If lower, damage to the ignition 
may occur.
This is not something unique to Pertronix, same story with Luminition 
Optronic/Magtronic and others.
I have seen many burned out systems because people (including 
professionals who should know better) fitted the electronic ignition 
straight to the coil without checking the resistance or bypassing the 
ballast resistor (both  generally about 1,5 Ohms) and/or forgetting to 
disconnect the resistor bypass from the starter motor!!!.
Kees Oudesluijs
NL

Op 4-10-2011 3:02, Alan Seigrist schreef:
> Jonas -
>
> Probably most of the people getting the low speed miss are not using a
> ballasted coil.  If you have a 4 cyl motor, you have to get a 3 ohm coil to
> go with the Pertronix.  Simply swapping out the points is not enough.  If
> not, the EI unit will overheat at idle and start misfiring.  If you have a
> high energy coil like a Lucas Sports coil, the problem will only be worse.
>   For whatever reason, Pertronix does not do a very good job of telling
> people that if they buy the original Ignitor module, they need 3 ohms of
> ballast in the coil.
>
> If you buy an Ignitor II module, then a low resistance coil will work fine.
>
> http://www.pertronix.com/prod/ig/flame/coils/40000_volt.aspx
>
> Regards,
>
> Alan
>
>
>
> On Tue, Oct 4, 2011 at 12:56 AM, Jonas Payne<JPayne at thorcon.net>  wrote:
>
>> It would appear that my Petronix Ignitor isn't working so hot.  Oddly
>> enough, a good friend who just installed on in his Lotus Esprit is
>> suffering from a low RPM miss.
>>
>> Looking on the Morgan, Jag, Triumph and Healey Lists, there has been a
>> lot of discussion about a "bad run" of these things, but I don't see any
>> hard data.
>>
>> Does anybody know:
>>
>>         If in fact the "bad run" has been acknowledged by Petronix?
>>         Is there any way to identify them?
>>         What is (are) the specific performance issue(s)?
>>
>>
>> Jonas Payne
>> PBR
>> Cell:   (702) 358-5084
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