Hi guys I'm new to this just thought I'd ask the question we currently have a grasso Y
That has bad vibrations at around 42-43hz (Vsd driven obviously) amps, pressures are all spot on oil pressure was high when we found her I know they don't like it that way just wondering we did a thrust check recently and male rotor showed a clearance of
0.11mm and female 0.04mm the manual has been converted from German so it's not making a whole lot of sense but from what I see that's 0.01 too close on the female and 0.01 too far on the male is it possible the male has touched the housing?