Thanks Chris. My brother has the same year and model engines and had a harmonic balancer go last year. He said this noise was not what he heard right before the failure. So hopefully that is not the problem. My brother thought belt tensioner also. I will start with that.
I got an intermittent noise issue. After trolling a few hours then cruising back home, we have a chirping noise coming from one of the engines at idle. Increase RPMs and it goes away. Has anyone heard the noise in the attached file?
