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Jet Boats
General Jet Boat Discussions
info about jet pump conversion
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<blockquote data-quote="flatboat" data-source="post: 341692" data-attributes="member: 5508"><p>I have a 59 ci Mercury 3 cyl short shaft tiller . I want to put a jet pump on it . for fishing in some rocky rivers that destroy props and lower units . it is sitting on a jackplate with 12"of setback on a 15x 56 Edge 8 degree v The motor has been ported , flywheel shaved and mid has been drilled . It will spin a lot faster now so I prop it to keep the rpms down to about 6000 with a fishing load .I will have to raise the motor 5" with a pump , I have that much travel with the plate and motor holes just wondering about the 12" set back having an issue . What about rpms with a pump ? Does the pump load a motor like a prop does? Would I have a problem with a ported motor ? I've read somewhere with some Johnyrudes ported don't fare well with a pump on them </p><p>Thanks for any info</p><p>Ed</p></blockquote><p></p>
[QUOTE="flatboat, post: 341692, member: 5508"] I have a 59 ci Mercury 3 cyl short shaft tiller . I want to put a jet pump on it . for fishing in some rocky rivers that destroy props and lower units . it is sitting on a jackplate with 12"of setback on a 15x 56 Edge 8 degree v The motor has been ported , flywheel shaved and mid has been drilled . It will spin a lot faster now so I prop it to keep the rpms down to about 6000 with a fishing load .I will have to raise the motor 5" with a pump , I have that much travel with the plate and motor holes just wondering about the 12" set back having an issue . What about rpms with a pump ? Does the pump load a motor like a prop does? Would I have a problem with a ported motor ? I've read somewhere with some Johnyrudes ported don't fare well with a pump on them Thanks for any info Ed [/QUOTE]
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Jet Boats
General Jet Boat Discussions
info about jet pump conversion
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