What I notice is that when the electric pump is shut off, the pressure does drop
to near zero, but recovers within about 5 seconds back to the normal 5-7psi.
>From my research, this type of intermittent drop is acceptable when the series
boost pump is turned off.
Cheers,
Pete
> On Apr 21, 2021, at 6:55 PM, arwel pritchard <arwel.pritchard@powercom.ltd.uk>
wrote:
>
>
> Good Evening
>
> I noticed something strange this evening asI was climbing out at full power,
when I got to about 1000ft, I switched the electric fuel pump off and the fuel
pressure dropped quite alarmingly from about 0.32bar to below 0.2bar. When I
noticed it, I immediately switched the electric pump back on to restore the
pressure.
I then leveled off, reduced power and flew a tight circuit back to land.
>
> After landing, I monitored the pressure at various power levels (with
> mechanical
pump only) and saw the pressure was at around 0.3bar continuously.
>
> I have seen it posted on various forums that its 'one of those things' and its
nothing to worry about, but I do!!
>
> I should also mention that Im seeing the pressure on a mechanical gauge as
> opposed
to an electrical display readout.
>
> Has anybody else come accross this before and is it a real problem?
>
>
> Thanks
>
> Arwel
>
> G-BYPM
>
>
>
>
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