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

Netspace vmitps at netspace.net.au
Sat Oct 20 23:44:58 BST 2007


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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