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Boat House
does 15hp really make that big of a differance?
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<blockquote data-quote="bassboy1" data-source="post: 23168" data-attributes="member: 55"><p>Though I can't tell for sure, I think this may be your problem. If the plywood decking came from the factory, it will probably have flotation foam as well. And, though I don't know the age of your rig, you mention it being a "ratty old boat" and in the 70s and early 80s it was quite common to use an open cell flotation foam, instead of the closed cell stuff. That open cell stuff could absorb so much water, and in some cases, could double the boats weight. Now, you mention that the plywood has some rot in it. Rot doesn't happen quickly. The water has to touch it for long periods of time, and if it did that then there is a good chance it got to the foam first. </p><p></p><p>The 60 to 75 may or may not be a worthwhile expender. With many of them from the 70s and 80s, the 60 was a 2 cyl, and the 75 was a 3 cyl. One of the strongest, and best designed 75 ever made. That extra cylinder will account for a bit of extra weight, which some aluminum boats don't take too well too. But, if your boat is a mod vee, then it really would be fairly close to an aluminum bass boat, which a 17 footer is commonly powered by a 75 or more, and many 17 - 18 footers can hold the weight of a V4 with ease.</p></blockquote><p></p>
[QUOTE="bassboy1, post: 23168, member: 55"] Though I can't tell for sure, I think this may be your problem. If the plywood decking came from the factory, it will probably have flotation foam as well. And, though I don't know the age of your rig, you mention it being a "ratty old boat" and in the 70s and early 80s it was quite common to use an open cell flotation foam, instead of the closed cell stuff. That open cell stuff could absorb so much water, and in some cases, could double the boats weight. Now, you mention that the plywood has some rot in it. Rot doesn't happen quickly. The water has to touch it for long periods of time, and if it did that then there is a good chance it got to the foam first. The 60 to 75 may or may not be a worthwhile expender. With many of them from the 70s and 80s, the 60 was a 2 cyl, and the 75 was a 3 cyl. One of the strongest, and best designed 75 ever made. That extra cylinder will account for a bit of extra weight, which some aluminum boats don't take too well too. But, if your boat is a mod vee, then it really would be fairly close to an aluminum bass boat, which a 17 footer is commonly powered by a 75 or more, and many 17 - 18 footers can hold the weight of a V4 with ease. [/QUOTE]
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Boat House
does 15hp really make that big of a differance?
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