Thank you so much for your suggestions.
Sorry i haven’t responded sooner...
I have a McCauley B3D32C407-C on a O 540-L3C5D ...Cessna 182 Rg Turbo
I sent my propeller to another propeller shop and had them look inside.
They found that the previous overhauler had neglected to install a second spring. I have flown 4 hours and there has been no issues with the propeller.
No one can explain how the symptom might be related to the missing spring however.
In addition, for the first time my engine made non-ferrous metal. There were tiny flecks clearly golden in color. When the oil was drained, only a few flecks remained and the rest was a powdery beige residue.
Oil analysis is normal and metal analysis shows tiny aluminum fines and powder. No copper or tin. However , my sample was very small..by the way,
my piston pin plugs are made of brass.
I followed the lycoming service bulletin of what to do when making metal.
Flew 4 hours, cut open oil filter 3 times to check and checked suction screen... All clean.
Im flying 10 hours now before cutting open the filter again.
I read Propsforever post and now am getting concerned again.
Any ideas?