Congratulations Buckchop. Picture?
Congratulations Buckchop. Picture?
Eddie Forward
Flying
SS7, 912iS, Garmin G3X
Im not good with the postin pic, have to sit down and try it again, if u have some hits for gettin one posted let me konw. Thanks Bucky
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Keary.jpg
In the past days I've learnt a lot about the Bing carburettors on my 912ULS. On start-up the engine ran very rough. I shut down and after some investigation a friendly Rotax expert found one of the rubber carburettor mounts (between carb and manifold) had cracked.
We removed both carbs and disassembled them then ordered new mounts, new membranes, new float frames plus gaskets and o-rings. The floats
tested ok i.e. floated nicely and weighed within limits so were re-used. A few days later another friend and Rotax expert helped me assemble and mount the carbs and then demonstrated his method for balancing them. I'd not been getting it right. The test run revealed a very smooth running motor. The next day the airfield closed due to Corona Virus restrictions so I'm grounded but very happy to have my motor running again.
Why did the rubber mount fail? I blame age and winter starts. My maintenance schedule calls for an annual inspection but that would not have revealed this crack which started from inside. The schedule will be changed to call for replacement every 5 years along with an annual inspection. Winter starts are always a bit rough with the use of choke and of course the cold temps will make the rubber more brittle. Experience gained and lesson learnt.
Oh and I didn't mention the pic. Taken from the Kitfox flying past Venice lagoon last year. On the return trip we landed at the famous Venice Lido airfield and had a nice evening in Venice. Aren't planes fun?
Ok ill try a pic hope it works. Hahahaaa
Looks like you did a great job rebuilding your Kitfox Buckchop.👍 Congrats and have fun.
DesertFox4
Admin.
7 Super Sport912 ULS Tri-gear
Oh Yeah. Skis look fun. Nice airplane.
And the Venice shot is cool as well. Glad you came back to state what we were looking at.
Eddie Forward
Flying
SS7, 912iS, Garmin G3X
A friend and I re-skinned my doors and he milled a new set of latches with his CNC machine.
First up was drilling out the 80 rivets that held the old Plexiglas on
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Then we used the old Plexiglas as a template to cut out the replacement Lexan. Then we re-riveted the new Lexan on with a pneumatic rivet puller. If you don't own one you have no idea what you are missing out on. At this point the doors are now several pounds lighter than with the Plexiglas
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Next up was to install the new latch holder. Tonight he is machining Delrin spacers to between the aluminum block and the latch
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Doors re-hung, new "D" shaped weather stripping installed and we will finish up tomorrow.
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Last edited by desertdave; 08-16-2020 at 02:43 PM.
Dave
KitFox 6 Taildragger
912 ULS
Whirlwind Prop
Garmin G3x
All around nice guy
Although it wasn't today, just a few days ago after finishing several "engine out" glide data points I decided to cool off a bit and see what the service ceiling might be. I gave up at 14,000 ft (with 80 fpm of extra VS before hitting the service ceiling) in order to keep within the 30 minutes allocated to "no oxygen" flight. For inquiring minds: the EFIS data file said the density altitude was 15,939. Did meet my cool off goal though.
See my build log at:http://www.mykitlog.com/lowandslow/