11-14-2025, 05:21 AM
Mike thats going to be a tough one to answer unless a trained ear is standing by it, I will say the Detroit series 60 is LOUD period. Are you sure its not alternator wine? Take a big screw driver and put it to various places on the engine with your ear on the other end and you'll find the exact location. Keep us informed on what you find. Welcome to the group.
1999 45' #504 "Magnolia"
Gravette, Arkansas
1996 40 XL Prevost Marathon