I am still having problems getting a brand new G26 to work properly in the air. See the information below from an earlier thread. I readjusted the carb to lean out the low speed screw, it was running rich. In the air, the engine still wouldn't run right....it would lose power unless the plane was climbing. Below are some pictures of the installation and oil on the bottom of the plane. I have several questions:
1. The oil on the bottom of plane is from less than 10 minutes of run time. Since the mixture settings are about as lean as they can go, it would appear that the engine is richening in the air. What are your experiences with this?
2. The vent hole for the carb metering diaphragm is really exposed to the wind in this installation. Is the next step to put a deflector on in order to protect it from the wind?
3. The vent hole is on the right side of the picture. All the other pictures I have seen, the vent hole is on the top. Should this be rotated?
Any suggestions would be greatly appreciated!!!!
http://www.rcuniverse.com/forum/G26_...1885386/tm.htm
I'm having a problem with a new G26 on an Ultra Stick Lite. Both are brand new and flew for the first time today, however the engine didn't run good in the air. It loses power and actually died twice in the air. In level flight or descending it runs bad, climbing it picks up power. On the ground it runs like a champ. 7500rpm with a 16x10 prop and idles good. After the second dead stick landing, the fuel line was full of fuel without any air bubbles. The engine started on the third flip and ran like a champ again. There is the black oily "slim" on the bottom of the fuselage.
I did a search on RCU and am getting the impression that the engine may be running a little rich. Does this sound like the problem? If so, which screw do I adjust? The engine goes from idle to full throttle without any hesitation. Before doing the search, I tried richening up the high speed needle slightly, and it made the problem in the air worse. Also the rpm's dropped down a couple of hundred rpm on the ground. The velocity stack that came with the engine is installed.
Any comments would be appreciated.
6/8/2004 7:09:14 PM