Low RPM, pretty much no deflection. Reverse, very little deflection. Forward, high rpm, that deflection is definitely a node, max deflection about half way between the engine and the shaft seal / stern tube, behind the coupling. As I replied to another post, it looks very impressive but could well be less than 1". Perhaps 1/2" on either side, so the 1" shaft winds up looking like it's 2" diameter instead of 1".
On Thu, Jan 9, 2014 at 2:03 PM, Marek Dziedzic <dziedzi...@hotmail.com>wrote: > I almost can’t believe that it is 1 inch deflection. You might be > scoring the stern tube. Or worse yet, you might be trying to rip it off the > hull. > > Where does it deflect that much (prop end, between the cutlass bearing and > the hull, inside). I would hope that the cutlass bearing does not let it > move sideways so it has to be one of the nodes on that deflection. The > motor should not move that much either, so the transmission end (coupling) > should be another (?). > > My first bet would be that the shaft is out of true. > > Marek > > _______________________________________________ > This List is provided by the C&C Photo Album > http://www.cncphotoalbum.com > CnC-List@cnc-list.com > > -- William D. Hall, Ph.D. 203 653 2886 (o) 617 620 9078 (c) wh...@alum.mit.edu
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