It sounds like a simple case of fuel starvation. Maybe a blockage in the fu
el line=2C clogged filters=2C debris in carburetor. The first thing I would
check is the fuel flow=2C with engine off=2C disconnect fuel hose at engin
e side=2C and pump into a bucket for a minute=2C then measure.Good luck=2C
Karl
> From: loboloda@execulink.com
> Subject: Europa-List: Fwd: Tech Help re 914
> Date: Tue=2C 14 Sep 2010 11:04:16 -0400
> To: europa-list@matronics.com
>
>
> Hi All=2C
>
> I am forwarding this on behalf of Chris Staines=2C his Europa is now
> parked midway between Ottawa and London=2C Ont=2C following some problems
> on the return flight.
> Ferg has kindly agreed to lend Chris his trailer to retrieve the
> aircraft=2C but as it will be at least a 4 hour drive each way=2C it
> would be nice if we could fly there and effect a repair.
>
> Any suggestions for trouble shooting the problem would be welcomed.
>
> Dave C-FBZI
>
> >>
> >>
> >> I experienced a partial engine failure=2C Rotax 914UL.This engine
> >> has about seven hundred
> >> hours on it and has been in use in my Europa for ten years.
> >>
> >> The symptoms were as follows.
> >>
> >> The roughness slowly became worse and could only be reduced by
> >> flying at a lower altitude and reducing power.Removing 'boost' and
> >> running at lower pressure caused
> >> the roughness to disappear but resulted in a loss of airspeed and
> >> altitude.Applying throttle cause the engine to stumble and almost
> >> stop.
> >>
> >> On the ground the plugs were noted to have a light layer of black
> >> carbon on them=2Cin contrast to their usual tan colour.Replacing the
> >> plugs did not help.The engine
> >> is usually operated on a premium car gas known to be alcohol
> >> free=2Cthough for this flight it was partially filled with avgas
> >> (about 60%).
> >>
> >>
> >> If you could give me some ideas on what to check it would be
> >> greatly appreciated.
> >>
> >> Sincerely=2CChris Staines
> >
>
>
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