ORIGINAL: bjfrankl
Hello-
I have some vibration issues with my Great Planes Escapade and I am not sure how to correct the problem. The vibration has even caused a glued joint to separate just behind my firewall (I used epoxy for reinforcement). I have already balanced my prop. Any suggestions on what may be causing the excessive vibration?
Thanks!
Bjfrankl
I assume you're using a 4-stroke engine ?
Possibilities:-
Unbalanced prop. balance it.
Out-of centre hole in prop: Try a new prop
Unbalanced spinner: try model without spinner
Bent prop shaft: Observe the arc of the prop. If the edge of the prop disc is "wide", then the shaft is bent.
Detonation: Too "hot" a plug and/or too high a nitro content. Too lean a needle setting. Too big a prop for the engine.
Engine loose in bed or mount is loose on firewall.
Violent flick manoeuvres.
Engine too big for model.