Thanks for all the responses!
We filled up at Oshkosh with 100LL no filter. The filter had been
replaced the day before
our trip to OSH. IT had around 7.5 hours on it. The filter looked
good when we replaced it on the way home from OSH.
I will let you guys know what I find out.
Matt Carpenter
Amarillo Texas
On 8/1/05, Jerry Rehn <rehn@rockisland.com> wrote:
>
> Matt
> On my trip to OSH from Seattle I had a similar problem. I actually had to
> throttle back to 26 inches to get engine to run smooth, my fuel pressure
> indicator was very low prior to throttling back. Landed and checked my
> Andair gascolator and found it to be full of fine black crud. Cleaned it and
> power was restored! I normally filter all my auto fuel but did not on this
> trip to OSH with 100LL. On way home I again experienced rough engine after
> flying some 800 miles. I discovered a slight fuel leak in front of the port
> carb between the intake manifold and the carb. I flew 5 or 6 hours home with
> a slightly rough engine . My port EGT ran hotter but all other indicators
> were good. Flew at 10,500 home. Called Rotax tech. He thinks could be a
> slight leak in intake manifold where carb is attached or contamination in
> the fuel float bowl and maybe balancing is off. I will be checking all of
> these and let you all know. The engine is a work horse and wants to keep
> going even when abused with bad fuel. I had a similar issue with a 912 in a
> Kifox some years ago. The engine would run smooth and then very rough and
> then smooth out for no particular reason drove me nuts trying to find issue.
> Turns out there were small alumin. shavings in port carb bowl that would
> move around and sometimes plug a fuel port and then drift away only to do it
> again! These metal shavings must have been left in bowl during manufacture.
> This was a new engine and I was the first to open carb bowl to look. So if
> there is something foreign in your cab bowl it will cause roughness.Bottom
> line is your issue is likely fuel related
>
> Regards
> Jerry 914XS Mono
> ----- Original Message -----
> From: "Matthew Carpenter" <europaxs@gmail.com>
> To: <europa-list@matronics.com>
> Subject: Europa-List: Rotax 914 problem/question
>
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> >
> > A weird problem with our 914 showed up on the way home from Oshkosh last
> > Wednesday.
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