06-06-2008, 08:38 PM
Yes, that is true about the cavitation plate. There are so many motors and designs that such a small difference does not take a big toll on performance.
As far as the prop being completely below the transom, I am very surprised. But on certain models it is possible. My main concern is that the motor will not always have a continues supply of water, depending on the situation. For trolling speeds it will work, but I would still not advise it. I just hope that you will be very careful and not allow the motor to run fast. And pay special attention to waves and whatnot. You don't want that prop or the wate intakes to be in the air. You would be amazed at what only a couple of seconds of "dry running" can do to the impellar area.
Though I would not put that motor on the boat you plan to buy I would tell you to check how everything looks at the ramp when you first launch. Tie the boat down and closely look at the transom area to see how everything sits. Then shake up the boat as if there is a wake or wave and see how everything is. There is no margin of error here. I would hate for that motor to get ruined. Then, when you get going watch what effect different speeds have.
With a all these precautions it is still gonna be dang hard to pull this off. There are always unexpected things on the water, and we as fisherpeople always get that urge to go just a little farther and explore more water. This is why you are going to be real limited in what you can do.
I am more of the cautious type and would not go for it. I would just wait for the new motor. You will have to drill another couple of new holes to secure the new motor to the transom, and the ones from your current motor might get in the way. You may not be able to fully seal them up, depending on how the new motor's mounthing bracket is. But if you decide to use the motor you have now, you could always use some marine sealent and plug them up.
Dang though, a 17 inch on a 20" Transom is gonna be tough. Dang.
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As far as the prop being completely below the transom, I am very surprised. But on certain models it is possible. My main concern is that the motor will not always have a continues supply of water, depending on the situation. For trolling speeds it will work, but I would still not advise it. I just hope that you will be very careful and not allow the motor to run fast. And pay special attention to waves and whatnot. You don't want that prop or the wate intakes to be in the air. You would be amazed at what only a couple of seconds of "dry running" can do to the impellar area.
Though I would not put that motor on the boat you plan to buy I would tell you to check how everything looks at the ramp when you first launch. Tie the boat down and closely look at the transom area to see how everything sits. Then shake up the boat as if there is a wake or wave and see how everything is. There is no margin of error here. I would hate for that motor to get ruined. Then, when you get going watch what effect different speeds have.
With a all these precautions it is still gonna be dang hard to pull this off. There are always unexpected things on the water, and we as fisherpeople always get that urge to go just a little farther and explore more water. This is why you are going to be real limited in what you can do.
I am more of the cautious type and would not go for it. I would just wait for the new motor. You will have to drill another couple of new holes to secure the new motor to the transom, and the ones from your current motor might get in the way. You may not be able to fully seal them up, depending on how the new motor's mounthing bracket is. But if you decide to use the motor you have now, you could always use some marine sealent and plug them up.
Dang though, a 17 inch on a 20" Transom is gonna be tough. Dang.
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