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    Alpha One Gen2 Grinding Noise at extreme turns

    Good question, the part that didn't work was Sierra brand which was half the price of Merc/Quicksilver part. 865496A02
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    Alpha One Gen2 Grinding Noise at extreme turns

    Just to follow up for anyone else dealing with these symptoms, the problem was the u joints after all. After buying the proper parts and replacing both u joints (again) the grinding went away. Lesson learned: pony up for quality parts. Also, the engine ticking in the video was leaky exhaust...
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    Alpha One Gen2 Grinding Noise at extreme turns

    Thanks, maybe I'll give it a few more hits for good measure next time its apart.
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    Alpha One Gen2 Grinding Noise at extreme turns

    Thanks, I'll follow these instructions next time its apart. Any thoughts about an engine coupler issue like worn splines? Hard to see but maybe I can reach in to feel them?
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    Alpha One Gen2 Grinding Noise at extreme turns

    The engine ticking has been there for a couple years now, no performance issues. I think it's an exhaust leak, will investigate that next. I used this bearing install tool. I'm confident that the bearing is seated all the way because I could not feel any gap after install. I'm pretty sure I...
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    Alpha One Gen2 Grinding Noise at extreme turns

    Used an alignment tool to set the new bearing before installing the drive. The drive came off easy but was challenging getting it back in. Had to carefully tap it in to get it started.
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    Alpha One Gen2 Grinding Noise at extreme turns

    Thanks, the video is trimmed fully down where the noise also happens at the turn extremes. I just wanted to mention the noise happens when trimmed up as well.
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    Alpha One Gen2 Grinding Noise at extreme turns

    Last summer my 2008 Starcraft w/ Mercruiser Alpha One Gen2 I/O started making loud grinding noise at high trim and during turns. The problem was pretty obviously the u joints so I replaced them (Sierra U-Joint-Mc #865496A02) which made a big improvement, although they were very difficult to get...
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