Whiny old boat

[Boppy]

I’ve owned this 1977 F26 Hardtop since 1999 and have spent many an hour and dollar getting her into 21st century shape. Love the boat! BUT….at low speed in forward (1100-1200 RPM) she makes a whiny, ringing noise that’s noticeable from the prop shaft (I think). I did have shaft and rudder work done about 3 years ago when I finally found that G D rock. The shaft and rudder stock were straightened along with prop work. MAYBE that started this whiny, ringy noise. Any ideas out there before I give my mechanic a big bag of money to diagnose the problem? BTW, I don’t get any vibrations underway in forward or reverse, just this whiny/ringing noise at low RPMs in forward. Thanks for any ideas out there.

[prowlersfish]

Things that come to mind, Low fluid, alinement, and cutlass bearing

[Boppy]

Thanks for the thoughts. Looks like the Forum just got hijacked by some junk marketers. Good luck, Bob.

[Moderator]

Thanks for the thoughts. Looks like the Forum just got hijacked by some junk marketers. Good luck, Bob.

The spammers are gone they are all over the internet.