sldpileit@aol.com a crit :
> Ok guys and gals, I would love some help with this one. After 15 hrs
> of great flying my engine has dropped 300 rpm static. and feels like
> its missing on a climbing crosswind turn. Filters have been chg'd
> and also the spark plugs. I've had the carbs redone and tanked at
> rotax in Sebring Florida. I still have the same problem. the engine
> runs very smooth untill you get in that climbing crosswind turn. Very
> unnerving. I have also chg'd out the gas (from aviation to car) Still
> have the same problem. I can reduce the throttle to below 4500 rpm and
> missing goes away. I have tried to sneak up on the throt tle in
> straight and level downwind, but the missing returns. I would love to
> hear from you guys on this one. The tech's at rotax are running out of
> ideas.
Hi,
The fact that the problem goes away when you reduce throttle seems an
indication of some (partial) fuel starvation. Does the engine shake and
spit back ?
Have you made sure to rule out any airframe issue ?
Qty in tank(s)
Boost pump on or off ?
Air trapped in lines (I've seen some tortuous fuel line routing)
Kinked fuel line (some Europas seem to have hose fuel lines between
tank and firewall)
Location of pickup relative to tank in a climb
Swarf/dirt/water in tank
Blocked pick-up screen
Blocked tank vents
Etc...
BTW, what if you don't take that climbing turn, and continue straight on ?
Regards,
Gilles Thesee
Grenoble, France
http://contrails.free.fr
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