Hi there,
I'm a newb here with a 912S fitted to my factory built 2 seat gyro. I have put 100hrs on it in the past 2 months and all has been well except a nagging issue. At full power there is a smell of fuel and there is a yellow/brown sticky residue left on the frame around the air filters. The mixture seems to be fine, the carbs are in sync, the engine develops good power and does not consume excessive fuel. The only other slight clue (maybe) is a dark discoloration of the prop right by the exhaust, but this takes some 10 hours or so to become noticeable.
The smell is not too strong (but i am up wind from the pusher engine) and the residue only needs cleaning every few hours, but i am sure that this shows that the engine is not running as efficiently as it should/could. I also know that gyro's are considered high drag aircraft so i wonder if the engine is developing full power, and once that is reached, additional fuel is just being wasted.
Sage forum members, I seek your thoughts and council.
Thanks,
Neil
I'm a newb here with a 912S fitted to my factory built 2 seat gyro. I have put 100hrs on it in the past 2 months and all has been well except a nagging issue. At full power there is a smell of fuel and there is a yellow/brown sticky residue left on the frame around the air filters. The mixture seems to be fine, the carbs are in sync, the engine develops good power and does not consume excessive fuel. The only other slight clue (maybe) is a dark discoloration of the prop right by the exhaust, but this takes some 10 hours or so to become noticeable.
The smell is not too strong (but i am up wind from the pusher engine) and the residue only needs cleaning every few hours, but i am sure that this shows that the engine is not running as efficiently as it should/could. I also know that gyro's are considered high drag aircraft so i wonder if the engine is developing full power, and once that is reached, additional fuel is just being wasted.
Sage forum members, I seek your thoughts and council.
Thanks,
Neil
