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Jet Boats
General Jet Boat Discussions
seems the previous owner of my jet didnt know anything...
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<blockquote data-quote="Ranchero50" data-source="post: 356960" data-attributes="member: 1523"><p>Which flavor pump do you have? Looks like 5 7/8 or 6 1/8 were available depending on the model.</p><p></p><p>https://outboardjets.com/download/medium_series/Impeller,%20Liner%20and%20Driveshaft%20ID.pdf</p><p></p><p>Can you adjust the impeller to liner clearance within spec? I remember you said you had trouble with it when you were here. A 3/4" shaft impeller shouldn't come close to working on a 5/8" shaft as it wouldn't be concentric with the shaft with a taller key taking up the difference.</p><p></p><p>I wonder how much better your impeller would work without all the cavitation holes (in your pic)? If you can get your liner clearance close I suspect filling the holes with Bondo as a test will make a difference in how high the engine revs.</p></blockquote><p></p>
[QUOTE="Ranchero50, post: 356960, member: 1523"] Which flavor pump do you have? Looks like 5 7/8 or 6 1/8 were available depending on the model. https://outboardjets.com/download/medium_series/Impeller,%20Liner%20and%20Driveshaft%20ID.pdf Can you adjust the impeller to liner clearance within spec? I remember you said you had trouble with it when you were here. A 3/4" shaft impeller shouldn't come close to working on a 5/8" shaft as it wouldn't be concentric with the shaft with a taller key taking up the difference. I wonder how much better your impeller would work without all the cavitation holes (in your pic)? If you can get your liner clearance close I suspect filling the holes with Bondo as a test will make a difference in how high the engine revs. [/QUOTE]
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General Jet Boat Discussions
seems the previous owner of my jet didnt know anything...
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