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Mercuiser Alpha One Gen 2 vibration when trimming up or down or turning worse at low speeds

VinnyC

New member
I’ve been trying to diagnose this noise for the last 2 weeks. Originally thought it was a grinding noise but after extensive testing yesterday it’s only a vibration. The vibration is most evident when trimming up and down at low speeds but when cruising above 5mph you can barely hear or feel anything. I’m thinking of just going ahead and replacing the u joints, gimble bearing and bellows just based off it being a 1997. Not sure what else it may be any help would be great. Thanks!
 
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