Changing out a 912 80 HP in a model IV

[Wheels]

The engine first start went according to plan. Dead battery had to be charged. After three attempts had to be charged again, new battery has been purchased. Start went off with good results but the Dynon DS 10 has many configurable screens. After replacing the supplied oil pressure sender with a Kavlico sender, the problem of oil pressure sender communication was partially solved.
The Dynon must be configured for your engine and the individual screens for RPM and pressure have been manually input. I think I may fly tomorrow.
Of course the nose cone didn't fit. That would have been too easy. Im looking for something that will fit a rotax powered round cowl. Not as easy as I thought.

The mech stuck around for the engine run and signed off the plane. The pneumatic balance and blade pitch are on me.
Not a problem. If things continue as they have been, there should be a major weather system or an earthquake that destroys my runway. I cant wait.

[mr bill]

We know the feeling

[Wheels]

I walked into the hangar and looked at my project sitting in the dim light of overhead flood lighting. There were tools and empty oil bottles around her feet. She sat there without her cowlings and two empty mouse traps on sentry.
The extra parts, the ill fitting nose cone, and the little drip of oil below the left corner of the heat blanket was just the icing on the cake. I shut off the lights, started up my tractor and started moving dirt. The little plane will have to wait until I feel like it. Im pretty tired of the process. Not one single aspect has gone according to plan. I"m too close to quit and I'm too Peeved to continue. I have 300 acres of hay to get in, and frankly, I would rather do that right now.

Dynon called back with an answer to the tachometer problem. The set up screen in the installation manual calls for several options. Deciding which one will require an optical tachometer to satisfy me that I'm seeing what is being reported.
190.00 sound reasonable for an answer? Welcome to aviation 101.

[Wheels]

Victory is never sweeter than when it is hard won.
tonight I fueled up the the fox and completed a final run up with the new Dynon settings from Steve at the company. Voila! beautiful readable believable vibrations of engine RPM!
All in the green, I took off in the evening light and flew for a few minutes to get the feel of it back. She makes 95mph at 5400 rpm. Probably a result of a slightly flat pitch and the lack of a nose cone. The ambient temps were in the 90s and the engine temps were relatively cool. I did a couple circuits and tested out my landing skills. My wife cried a little when I landed, she was afraid I was about to quit. and truth be told, I was. Its been a long road. I think the end of the ridiculous maintenance may be upon us. We should be able to fly, just ... fly.
I'll keep you posted.

[Wheels]

What is the right nose cone for a new 912ul in a Model IV round cowl. the 9 inch carbon fiber option is not it.

[aviator79]

Victory is never sweeter than when it is hard won.

Way to stick with it. Congratulations.

[efwd]

Great Job Wheels! I know what you mean. Wiring is staring me in the face. Just finished summer vacation on the Green River UT with my boys and my brother. Now I need to start installing wiring harness'.

[DesertFox4]

Happy news Wheels. Safe Kitfoxing.

[Slyfox]

Victory is never sweeter than when it is hard won...

that is so fantastic. If you want to meet up sometime, I would love to fly with you. It was a very long road for you to get what you wanted, now go fly and enjoy. soon you will forget about what troubles you had and have nothing but fun memories of flying your fox. again, enjoy.

[Wheels]

I Balanced the carbs with a carb mate today and after an hour I gave in and used a dual gauge from a Twin engine plane. I got it pretty close but not as happy as I would like. Seems like the idle immediately following start was pretty rough for about 5 minutes. Then all was fine. I put a larger diameter balance tube on it and Im sure that is a good Idea. other than that its performance stock.

I"m still showing 5860 at take off climb showing 60 mph with VY. I"ll take a half degree out tomorrow and test again.
I think It was straight and level ish, at 105 showing 5800. So Im thinking that adding a nose cone and just dusting off the plane will net me another 5mph.

Thank you all for the encouragement and just for biting your own tongues while I ranted or moaned. I owe you a debt actually. I'll try to be the guy who pays forward the right way.
OK, tomorrow is full tanks early A.M. and start the real shake down.
cheers.