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ferocious frankie · 04-20-2008, 10:41 PM

I don't have a gasser yet, but I've had the same problem you described on my Saito 1.80. I found out the vibration from the plane was creating bubbles in the tank causing the engine to pull air resulting in the RPM bursts in the air. You can find bubble free clunks from Turbine dealers and Troy Built Models. I believe they are made out of ceramic. There is another clunk with little brass beeds in it to keep from bubbles forming.

http://www3.towerhobbies.com/cgi-bin...?&I=LXD741&P=M

http://www3.towerhobbies.com/cgi-bin...&I=LXXF25&P=ML

Another thing to consider is if you were out of fuel and the engine was sucking air. This scenario is doubtful with gassers, but I would still consider it.

Another scenario is your fuel lines. Check all your fuel lines to see if you have any rips or holes causing your problem. There is a good chance that this is what you have.

Just some things to consider. Good luck.

04-20-2008, 10:41 PM	#3
ferocious frankie Huck Yeah!!! Join Date: Mar 2006 Location: California Posts: 1,552	Re: A Strange thing with my DA 85 Yak I don't have a gasser yet, but I've had the same problem you described on my Saito 1.80. I found out the vibration from the plane was creating bubbles in the tank causing the engine to pull air resulting in the RPM bursts in the air. You can find bubble free clunks from Turbine dealers and Troy Built Models. I believe they are made out of ceramic. There is another clunk with little brass beeds in it to keep from bubbles forming. http://www3.towerhobbies.com/cgi-bin...?&I=LXD741&P=M http://www3.towerhobbies.com/cgi-bin...&I=LXXF25&P=ML Another thing to consider is if you were out of fuel and the engine was sucking air. This scenario is doubtful with gassers, but I would still consider it. Another scenario is your fuel lines. Check all your fuel lines to see if you have any rips or holes causing your problem. There is a good chance that this is what you have. Just some things to consider. Good luck. __________________ Plane: AW 50cc Extra 300 Radio: Futaba 12FG 2.4 GHz Last edited by ferocious frankie; 04-20-2008 at 10:47 PM.