It may not calculate but it is true. I put a diode in and it stopped the
problem immediately. Per John Twist this was the answer.
...Art
On Thu, 10 Jun 1999, Simon Matthews wrote:
> Simple calculations show that it is very unlikely that it is current through
> the ignition light that is keeping the engine running.
>
> The current through the ignition light is at most .2A -- that assumes there
> is minimal extra resistance in the circuit. Since energy in an inductor is
> calculated as I2L, and the normal peak current in a coil is about 3-4A, this
> means that, if the current flows through the ignition light and then into
> the coil, the energy stored in the coil is about 1/400 of the energy stored
> under normal running conditions (20 squared). I seriously doubt this is
> enough to fire a cylinder.
>
> So, the problem must lie elsewhere. The dimly lit ignition light may provide
> a clue to the problem, but I am quite sure that current through this light
> is not the solution.
>
> Simon ('57 MGA)
>
>
>
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