Got it. Slight imperfections throw everything off at 2700rpm.
So here’s a question: I notice a slight jiggling of the coupler and shaft when idling (resonant frequencies?), but things seem a bit smoother at higher rpm’s. Should I have the coupler/shaft balanced (is this done?) or the surface inspected for any warble (like a brake disk)? I’m not sure if the slight shaking I observe at idle is normal or something to be concerned about.
So here’s a question: I notice a slight jiggling of the coupler and shaft when idling (resonant frequencies?), but things seem a bit smoother at higher rpm’s. Should I have the coupler/shaft balanced (is this done?) or the surface inspected for any warble (like a brake disk)? I’m not sure if the slight shaking I observe at idle is normal or something to be concerned about.
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