[DML] Re: RPM Relay (John Hervey)
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[DML] Re: RPM Relay (John Hervey)



I've learned something new. I did not realize the RPM relay closed
with every single distributor rotation. I thought the timer looked for
more RPM's than that.

Of course the distributor turns surprisingly slowly while cranking.
Those few bursts alone might well not be enough to bring the primary
pressure up to 75 PSI. It would be enough to throw some fuel the cold
start valve's way however.

Don't you sell a kit that easily installs a pushbutton to manually
ground the cold start valve? Engineering a pushbutton from scratch
wouldn't be difficult (I've got an unused button still mounted and
wired under my knee pad from my aux air valve days), but a kit would
be even easier for new owners.

Bill Robertson
#5939

>--- In dmcnews@xxxxxxxxxxxxxxx, "John Hervey" <john@...> wrote:
>
> David, 
> Your correct. Once the reluctor ( magnetic ) senses one turn from
the point
> /rotor in the distributor it send the signal to the 555 chip to turn
on the
> pump were starting the car.
> John Hervey 
> www.specialtauto.com




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