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  1. K

    Loud, intermittent "knock" when at cruising speed

    Hey guys - New to the forum, and new to boating in general. I tried searching but didn't really see anything that mirrored my specific issue. I have a 2005 Four Winns H180 with a 4.3 GL Volvo Penta (Volvo SX Outdrive). Whenever I open up the throttle and get to about 4200rpm, I hear a...
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