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Jet Boats
General Jet Boat Discussions
Mercury 60/40 4 Stroke 4800 RPM WOT right?
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<blockquote data-quote="LarryMc" data-source="post: 423526" data-attributes="member: 13895"><p>I think you are right about the impeller being the problem with the first motor. It had a manufacturers tag on it with "15" on it. I assume that means it was made in 2015. The replacement has a "16" on the tag. Seems strange that even the Mercury rep couldn't figure out what was wrong with the first motor. Like you, I'm still not happy with the performance of the 4 stroke 40 jet on this boat. But I guess I'll live with it. With the rivers I fish, a prop is not an option and I really don't want to put a 65 jet on it. </p><p></p><p>I'm going to pull the intake off of the jet lower today and check out the impeller and see what it looks like. I've never seen a backcut impeller. Is the difference between the old type and the new type obvious?</p><p></p><p>handyandy, I still have the 2 stroke. Depending on how things go with the 4 stroke, I may have the powerhead rebuilt and put it back on my boat.</p></blockquote><p></p>
[QUOTE="LarryMc, post: 423526, member: 13895"] I think you are right about the impeller being the problem with the first motor. It had a manufacturers tag on it with "15" on it. I assume that means it was made in 2015. The replacement has a "16" on the tag. Seems strange that even the Mercury rep couldn't figure out what was wrong with the first motor. Like you, I'm still not happy with the performance of the 4 stroke 40 jet on this boat. But I guess I'll live with it. With the rivers I fish, a prop is not an option and I really don't want to put a 65 jet on it. I'm going to pull the intake off of the jet lower today and check out the impeller and see what it looks like. I've never seen a backcut impeller. Is the difference between the old type and the new type obvious? handyandy, I still have the 2 stroke. Depending on how things go with the 4 stroke, I may have the powerhead rebuilt and put it back on my boat. [/QUOTE]
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Mercury 60/40 4 Stroke 4800 RPM WOT right?
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