Barney,
I asked because fairly recently, I started noticing a buzzing noise
that appeared to be coming from the bulkhead and was dependent on
engine speed. I had never heard this before (or rather, never noticed
it), so I was wondering if it implied that the regulator was fautly in
some way.
Regards,
Simon
On 1/3/07, Barney Gaylord <barneymg@mgaguru.com> wrote:
> At 10:14 AM 1/3/2007 -0800, Simon Matthews wrote:
> >....
> >How quickly should the electro-mechanical regulator on an MGA switch?
> >Should it switch fast enough to make a buzzing sound?
> >....
>
> Yes it vibrates. The frequency may be about the same as ignition
> spark at idle speed, about 30 contact cycles per second (in the
> ballpark). See here: http://chicagolandmgclub.com/techtips/general/585.html
> Function of the regulator relay starts half way down the page just
> after the last picture.
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