[Healeys] Petronics

[Alan Seigrist]

Kees - AH ignitions, EI or stockN are unballasted.  The EI made for
the AH from Pertronix does now require a ballast resistor.  Been using
them for 20 years with no failures.

On 4/19/09, Oudesluys <coudesluijs at chello.nl> wrote:
> Most electronic ignitions provide a stronger spark and need at least a 3
> Ohm resistance from the coil plus resistor at all times. During start up
> the resistor is shorted to increase the voltage on the standard ignition
> to provide a stronger spark as the voltage will drop due to the strong
> current and the resistance will drop to about 1,5 Ohm. This may cause
> the electronic ignition to overheat and possibly burn out.
> Vulnarable are the Pertronics and Lumenition systems. Perhaps also others.
>
> Because of the stronger spark the electronic ignition is providing this
> shorting of the resistor is not neccesary anymore.
> The remedy is simple, just disconnect the small white/yellow wire at the
> starter motor relay. This will leave the resistor in function at all times.
>
> Kees Oudesluijs
>
>
> James Lea schreef:
>> We fired up the Healey for the first time this year yesterday. I drove
>> two blocks and she died. After checking everything I could think of I
>> have decided that the problem is the Petronics ignition. I have heard
>> that they can cause problems and several of my LBC friends have gone
>> back to standard points. My question is when the fail, do they
>> normally go all at once? This time the car just died and I could get
>> nothing more after that. Thanks, JL
>>
>> James Lea
>> PO Box 25
>> Rockport Maine 04856
>> 1-207-236-3632
>>
>> 1951 Triumph Renown
>> 1952 MG TD
>> 1952 Triumph Mayflower
>> 1958 Rover P4
>> 1962 Austin Healey BT7
>> 1980 Commuta-car Electric _______________________________________________
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Alan

'52 A90
'53 BN1
'64 BJ8