[DML] Re: Correction -- Spark Plug Gap

["David Teitelbaum" <jtrealty@xxxxxxxxxxx>]

You have to remember that with use (mileage) the gap increases. "Back
in the day" the rule of thumb was .001 per 1,000 miles. Plugs seem to
do a whole lot better but they do still wear. When you install the
plugs the manufacurer's recomendation was based on how many miles you
would go between tune-ups. If you open the gap when you first install
the plugs and they wear you will have problems way before the
recomended change interval. What this means is you have to shorten the
change interval as you open the gaps. Not a big issue on a limited use
vehicle. This is one of the reasons on a car with old parts and some
mileage on a damp day it won't start. Between the large gap and the
low breakdown voltage of the old wires you can't get the spark to the
plugs. A higher voltage coil can overcome some of this at the expense
of the wires, distributer cap and rotor. Bigger gaps will also
increase interference on the radio with weak stations.
David Teitelbaum
vin 10757 


-- In dmcnews@xxxxxxxxxxxxxxx, "therealdmcvegas" <dmcvegas@xxxx> wrote:
> 
> 
> Yeah, with gaps that big, you might do better with Tesla coils! :)
> 
> You can always go bigger. I installed a new MSD Blaster coil, and 
> balast resistor. Slightly higher resistance than stock, but works well 
>








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