Hi Frans,
> So, what I would like to know:
> 1) Does anyone recognise these symptoms?
> 2) Has anyone ever had a faulty fuel pressure regulator?
> 3) Is it normal do see a momentary drop in fuel pressure when going from
> idle to full power? (I'm not slamming the throttle open, but take one
> second or so, to give carbs, prop, etc. some time to adapt).
> 4) If indeed this is not normal but it is not the pressure regulator,
> what else could it be? Any ideas?
>
>
We replaced our fuel regulator when trying to figure out why our pressure varied
about +/- .5 psi. The old regulator diaphragm had a funny appearance that the
Rotax tech hadn't seen before. It's a pretty simple device and you can open
it and clean the valve inside.
We do not see a change in fuel pressure when going from idle to 100% power (we
haven't found a need to use 115% power even at high density altitude) and our
EFIS is set to alarm at +/- .5 psi from nominal.
We think Remi is on the right track.
Jim & Heather
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