Recently repowered with trip 250s they now have just under 40 hours and they have been great till now.
I have been playing with props and finally got a chance to try new Mirage plus 14 3/4 x 21.
Outer engines turned 5900, & 6000, center hit 6200.
Heres the issue, at 5200 and above it runs great, under 5000 the rpms oscillate. cruise at 4800 and the revs will drop off to 4400, then back up to 4800 this oscillation takes between 5 and 10 seconds and happens at any rpm range under 5200.
the engine starts with no issues, and idles fine with no oscillation.
tomorrow I am gonna change the main fuel filter and check the fuel line and clamps.
I have a 3 year warrenty, and my dealers mechanic is gonna come and chexk it out next week, but just wondered if anyone had any thoughts, oh and there are no fault codes.
I have been playing with props and finally got a chance to try new Mirage plus 14 3/4 x 21.
Outer engines turned 5900, & 6000, center hit 6200.
Heres the issue, at 5200 and above it runs great, under 5000 the rpms oscillate. cruise at 4800 and the revs will drop off to 4400, then back up to 4800 this oscillation takes between 5 and 10 seconds and happens at any rpm range under 5200.
the engine starts with no issues, and idles fine with no oscillation.
tomorrow I am gonna change the main fuel filter and check the fuel line and clamps.
I have a 3 year warrenty, and my dealers mechanic is gonna come and chexk it out next week, but just wondered if anyone had any thoughts, oh and there are no fault codes.