Oil on the prop question...

[InsideTrader]

I have noticed after my last few flights, there has been a slight amount of oil on the back of the prop where the prop disappears into the nose cone. I'm running an O-540 with a constant speed. I'm assuming the oil is coming from the prop hub. There is no oil on the cowling or front of the windshield. There is also no noticeable loss of oil according to my dip stick. My mechanic doesn't seem to worried about it but I was wondering what other people thought. And is this a terribly expensive problem to fix?

Thanks for any help/opinions/advice.

 

[GM.]

 

[Orest @ CYFD]

 

[Domenick]

 

[skywag]

 

[rrc1962]

 

[sierrakilo99]

 

[InsideTrader]

 

[sierrakilo99]