2003 Merc 60 ELPTO rhythmic squeak/squeal

[OssipeeLake]

Having a great couple seasons since being back in forum.
QUESTION: while up to temp and idling, there's a squeak which very much sounds like a shaft bearing, or very similar to a vehicle water pump seal/ bearing beginning to fail. Just took it back to house for other job but will check oil in lower unit. Any ideas will be appreciated.

thank you.
Steve Foley

 

[OssipeeLake]

FYI: Lower unit gear oil is full. Changed every season. Fresh water use.

 

[johnnygjr]

Check water pump impeller for wear,Hopefully its not the mid shaft bearing. Try using a broom stick and ear to isolate noise.

 

[OssipeeLake]

Thank you.