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  1. MN240SD

    Serpentine belt pulley not aligned - 2007 240 SD 5.7l 300hp

    We have owned the boat (2007 240 Sundeck, 5.7l 300hp Mercruiser) for 3 years and never had an issue until now. The belt came off (not broken) under idle and noticed that the pulley on the bottom is missing a bolt and has slide out of alignment from the others. The pulley only rotates a few...
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