> > > +1 on double checking the pitch. When I had my Martec refurbished I was told > by Martec that my original blades were under pitched and I bought new blades > with higher pitch.. > > After a year of chasing vibration checking everything with no success I > finally had my old blades machined to fit the new pivot and slapped them > on.. Problem solved! > > Cavitation was the culprit. The offending blades were also pretty badly > pitted which corroborated the cavitation theory. > > Good luck with it > > -Francois > > 1990 34+ "Take Five" > Lake Lanier GA > > > > Sent from IBM Verse
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