[ROVERNET - UK] Mixture problems-resolved, sort of...

[Netspace]

His theory about dropped voltage is not without merit.  Also depends on the 
coil - Jags like 5A through theirs (for reasons that beat me)(based on an 
XJ6 series 2 I worked on once).


----- Original Message ----- 
From: "David Read" <defender110 at ozemail.com.au>
To: <rovernet at lyris.ccdata.com>
Sent: Sunday, October 21, 2007 5:05 PM
Subject: Re: [ROVERNET - UK] Mixture problems-resolved, sort of...


> Possibly, but if the only thing changed was the electronics for points, it 
> would have to be a high resistance within the electronic unit itself.
>
> Cheers
> Dave
> South Oz
>
> Netspace wrote:
>> Or 3. The current is inadequate due to high resistance.
>>
>> ----- Original Message ----- From: "David Read" 
>> <defender110 at ozemail.com.au>
>> To: <rovernet at lyris.ccdata.com>
>> Sent: Sunday, October 21, 2007 9:24 AM
>> Subject: Re: [ROVERNET - UK] Mixture problems-resolved, sort of...
>>
>>
>>> Hi Stephen/Larry
>>> My $0.02 worth ... <g>.
>>>
>>> The Kettering ignition system relies heavily on the maximum possible 
>>> energy storage buildup in the coil (dwell) and then breaking the current 
>>> flow in the shortest possible time to generate the maximum spark.
>>>
>>> Electronics should break the flow far faster than the points.
>>> If points give a "fatter" spark than the electronics, this suggests
>>> to me two possibilities ....
>>> 1. The electronics is not allowing current to flow long
>>> enough (dwell) or
>>> 2. Is not breaking the current fast enough.
>>>
>>> Cheers
>>> Dave
>>> South Oz
>>>
>>> Larry wrote:
>>>> Steven, I too am having a tough time with tuning my TC. I have a 
>>>> Petronix unit in  place and I would be interested in what they say when 
>>>> you call them. Regards, Larry
>>>> ----- Original Message ----- From: "Steven Dibdin" 
>>>> <sdibdin at hotmail.com>
>>>> To: <rovernet at lyris.ccdata.com>
>>>> Sent: Thursday, October 18, 2007 3:23 PM
>>>> Subject: [ROVERNET - UK] Mixture problems-resolved, sort of...
>>>
>>>> Hi All,
>>>>
>>>> Thank you for all your responses. I have tried a number of solutions 
>>>> and the results are:
>>>>
>>>> New flame thrower coil with points give the best idle and performance. 
>>>> This must be the first case of Lucas products beating modern 
>>>> electronics. I will call petronix to discuss later on. When left to 
>>>> idle plugs would soot up from incomplete combustion after about 90 
>>>> secs.
>>>>
>>>> The spark at idle with the petronix unit in place was yellow and quite 
>>>> weak (0.030" gap on plugs as per instructions).
>>>>
>>>> With the points in place it was much stronger and would jump a much 
>>>> bigger gap. Engine idled for 5 minutes with out a change in idle speed 
>>>> or smoothness.
>>>
>>> <snip>
>>>
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>>
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>
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