Hi all,
My RV8 flew for the first time today. It has an AFP injector, IO360M1B, dual lightspeed ignition, three blade Catto fixed pitch prop. There are two issues:
1. At idle, it is very rough unless the mixture is pulled out about a third. If you lean it to be really smooth, then application of the throttle will see it hesitate before powering up. With it a little less lean, it is not quite as smooth but will power up pretty easily.
2. While in the initial flight testing, it runs very smoothly from about 65% up to full power. With the power pulled back to about 13 inches and 1400 RPM, it seems to miss some. Not constantly, but enough that my test pilot did not want to stay at that RPM. This could be worrisome on approach.
Since I have dual lightspeeds that seem to be performing normally, we thought this might be a fuel/servo issue. Anyone have any idea how to investigate the problem?
My RV8 flew for the first time today. It has an AFP injector, IO360M1B, dual lightspeed ignition, three blade Catto fixed pitch prop. There are two issues:
1. At idle, it is very rough unless the mixture is pulled out about a third. If you lean it to be really smooth, then application of the throttle will see it hesitate before powering up. With it a little less lean, it is not quite as smooth but will power up pretty easily.
2. While in the initial flight testing, it runs very smoothly from about 65% up to full power. With the power pulled back to about 13 inches and 1400 RPM, it seems to miss some. Not constantly, but enough that my test pilot did not want to stay at that RPM. This could be worrisome on approach.
Since I have dual lightspeeds that seem to be performing normally, we thought this might be a fuel/servo issue. Anyone have any idea how to investigate the problem?