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spoon design for jetboats wanted
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<blockquote data-quote="CedarRiverScooter" data-source="post: 416790" data-attributes="member: 15465"><p>I too had cavitation problems with jet ski insert flush with jon boat hull.</p><p></p><p>I dropped the jet ski insert to about 1-1/2 inches below hull. It is level along it's length.</p><p></p><p>For the transition, I used the material that was cut out of jon boat (for insert).</p><p></p><p>It is about 4 foot long, so it has a gentle taper. Since my old mig welder hates feeding aluminum wire, I just tack welded it in (at least 100 tacks!)). I used epoxy resin & fiberglass cloth to seal it up. So far, leak free.</p><p></p><p>Performance wise, I can run in 2 inch chop & no cavitation, so it was worth all the work.</p><p></p><p>Edit: I also re-shimmed the pump mount. so as to keep the thrust angle similar to before. (this was no small task either).</p><p></p><p>[ATTACH=full]86338[/ATTACH]</p></blockquote><p></p>
[QUOTE="CedarRiverScooter, post: 416790, member: 15465"] I too had cavitation problems with jet ski insert flush with jon boat hull. I dropped the jet ski insert to about 1-1/2 inches below hull. It is level along it's length. For the transition, I used the material that was cut out of jon boat (for insert). It is about 4 foot long, so it has a gentle taper. Since my old mig welder hates feeding aluminum wire, I just tack welded it in (at least 100 tacks!)). I used epoxy resin & fiberglass cloth to seal it up. So far, leak free. Performance wise, I can run in 2 inch chop & no cavitation, so it was worth all the work. Edit: I also re-shimmed the pump mount. so as to keep the thrust angle similar to before. (this was no small task either). [ATTACH type="full" alt="new bottom 002.JPG"]86338._xfImport[/ATTACH] [/QUOTE]
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spoon design for jetboats wanted
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