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Bad noise on my 25 Merc
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<blockquote data-quote="captdan" data-source="post: 351506" data-attributes="member: 4209"><p>Jet, what prop are you using? Is it the stock aluminum prop or a stainless prop? On smaller outboards, sometimes you will hear what we refer to as "driveshaft chatter". This can be heard at lower speeds and usually disappears as you give more throttle. Usually this is evident with a stainless prop.</p><p></p><p>Before you go tearing anything apart, you need to isolate your issue. Drop the lower unit, hook up the garden hose to the water pickup tube, and run the motor. If the sound still persists, you know the issue is not the lower unit or driveshaft.</p></blockquote><p></p>
[QUOTE="captdan, post: 351506, member: 4209"] Jet, what prop are you using? Is it the stock aluminum prop or a stainless prop? On smaller outboards, sometimes you will hear what we refer to as "driveshaft chatter". This can be heard at lower speeds and usually disappears as you give more throttle. Usually this is evident with a stainless prop. Before you go tearing anything apart, you need to isolate your issue. Drop the lower unit, hook up the garden hose to the water pickup tube, and run the motor. If the sound still persists, you know the issue is not the lower unit or driveshaft. [/QUOTE]
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Bad noise on my 25 Merc
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