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    Banging noise while at high RPM

    Hello, I have Volvo-Penta 4.3GL SX 2001 and she has been running great this summer. My only problem is that at or near WOT (4200-4600 rpm) I occasionally hear a loud metallic thud which immediately goes away. Actually, it's hard to describe exactly how it sounds - not grinding, not...
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    Volvo-Penta 4.3 GL has a rattling sound at WOT

    2000 43GLPELFS Duratec V-6 190 hp My boat makes an infrequent rattling noise at wide open throttle. If I ease off the throttle immediately it goes away or it goes away by itself. Is there any chance that what my boat is telling me can wait until the off season? Also, is there any harm in...
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    Could reversing polarity on battery kill starter even if I did not try and start?

    # 2001 - Volvo Penta 4.3 GL (duratec V-6 block) SX outdrive Hi, I got excited for the new season and reversed polarity on my battery. I turned the incorrectly wired battery "on" but I did not try and start (no key in the ignition, etc.). This immediately fried my alternator (nice puff of...
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