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Jet Boats
General Jet Boat Discussions
Impeller tolerance
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<blockquote data-quote="smackdaddy53" data-source="post: 365254" data-attributes="member: 10154"><p>No, I had three shim washers on top (bearing side) of impeller and the spares on the bottom (nut side) and it was contacting tge liner so I moved one from top so it gave the impeller more clearance. As the liner wears common sense tells me I will move more shim washers to the top of the impeller to maintain proper clearance.</p><p>I am just wondering why my shaft is moving so much and if it is normal. There is at least 1/16" play left to right but none up and down. This tells me there is no way I can get .030" tolerance with that much movement. </p><p>I guess what I'm saying is I must be overthinking this and I should just not shim my impeller at all and go from there. Sound about right?</p></blockquote><p></p>
[QUOTE="smackdaddy53, post: 365254, member: 10154"] No, I had three shim washers on top (bearing side) of impeller and the spares on the bottom (nut side) and it was contacting tge liner so I moved one from top so it gave the impeller more clearance. As the liner wears common sense tells me I will move more shim washers to the top of the impeller to maintain proper clearance. I am just wondering why my shaft is moving so much and if it is normal. There is at least 1/16" play left to right but none up and down. This tells me there is no way I can get .030" tolerance with that much movement. I guess what I'm saying is I must be overthinking this and I should just not shim my impeller at all and go from there. Sound about right? [/QUOTE]
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Impeller tolerance
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