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Jon and V Boat Conversions & Modifications
JetJon Conversion - SeaDoo SP into 1236 Fisher
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<blockquote data-quote="painlesstom" data-source="post: 291174" data-attributes="member: 10361"><p>Thanks. Between bolting everything together with 30 stainless 1/4-20 screws using polyurethane, and reinforcing the whole area with fiberglass, I am confident there won't be any leaks or movement to alloy any to develop. </p><p></p><p>The motor is the small 587 Rotax, 55 hp. I'm not worried about warp speed, 30-35 mph is what I'm expecting to see, I probably will only cruise at 25 anyhow. Less power usually equates to lower maintenance, longer life, and better fuel mileage. Time will tell, as always.</p><p></p><p>I will be using aluminum angle to frame out over the engine area for a 1/2" plywood deck, the fuel tank will probably get mounted inside what was the middle bench. That will help keep some weight forward. So far, I would be willing to bet the entire boat is still lighter than the jet ski was, before I chopped it up.</p><p></p><p>PSG-1, I have looked at your aluma-jet before, nice job. I thought I started with a rough Jon, you brought yours back from the grave! </p><p></p><p>I have welding and machining capability, I just don't have the means to weld aluminum. The aluminum angle for the frame work will get bolted together, makes things easier if engine work is later necessary. So what I'm doing can be duplicated by anyone with a sawzall, a drill and a tape measure, with regards to joining the two hulls together anyhow. Measure three times and cut once... </p><p></p><p>I'm still contemplating the need for reverse, not sure if it would be worth the effort yet. It comes in handy on my 14' Sea Rayder w/ sport jet 90, it's also a much bigger and heavier boat though. Some feedback on this would be appreciated from those who have built one of these boats.</p></blockquote><p></p>
[QUOTE="painlesstom, post: 291174, member: 10361"] Thanks. Between bolting everything together with 30 stainless 1/4-20 screws using polyurethane, and reinforcing the whole area with fiberglass, I am confident there won't be any leaks or movement to alloy any to develop. The motor is the small 587 Rotax, 55 hp. I'm not worried about warp speed, 30-35 mph is what I'm expecting to see, I probably will only cruise at 25 anyhow. Less power usually equates to lower maintenance, longer life, and better fuel mileage. Time will tell, as always. I will be using aluminum angle to frame out over the engine area for a 1/2" plywood deck, the fuel tank will probably get mounted inside what was the middle bench. That will help keep some weight forward. So far, I would be willing to bet the entire boat is still lighter than the jet ski was, before I chopped it up. PSG-1, I have looked at your aluma-jet before, nice job. I thought I started with a rough Jon, you brought yours back from the grave! I have welding and machining capability, I just don't have the means to weld aluminum. The aluminum angle for the frame work will get bolted together, makes things easier if engine work is later necessary. So what I'm doing can be duplicated by anyone with a sawzall, a drill and a tape measure, with regards to joining the two hulls together anyhow. Measure three times and cut once... I'm still contemplating the need for reverse, not sure if it would be worth the effort yet. It comes in handy on my 14' Sea Rayder w/ sport jet 90, it's also a much bigger and heavier boat though. Some feedback on this would be appreciated from those who have built one of these boats. [/QUOTE]
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Jon and V Boat Conversions & Modifications
JetJon Conversion - SeaDoo SP into 1236 Fisher
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