Fixing a Noisy Alpha 1 Gimbal Bearing

Hearing a weird grinding noise while you're out on the water usually means your alpha 1 gimbal bearing is crying for help. It's one of those sounds that instantly ruins a good day of boating because you know, deep down, that something in the drivetrain is struggling. If you've ever heard a low-pitched growl or a rhythmic vibration that gets worse when you turn the steering wheel, you've likely met the primary symptom of a failing bearing. It's a common issue for Mercruiser owners, but it's something you really want to stay on top of before it turns into a much more expensive repair. ...

February 8, 2026 · 7 min · Polishook Dajani