Hi Alan- I have been careful not to let it run when vibrating as I have concerns about the cutlass bearing being damaged (not to mention the rest of the drive train). Last I checked, the cutlass bearing still seemed secure. But I am not sure what you mean by a “loose prop”. Do you mean the actual attachment to the shaft? I have never taken the Maxprop off, but it looks to me like it is bolted onto the shaft and requires a gear puller to remove, so I don’t see how it could be loose. Dave
S/V Aries 1990 C&C 34+ New London, CT > On Aug 27, 2020, at 2:53 PM, ALAN BERGEN via CnC-List <cnc-list@cnc-list.com> > wrote: > > I haven't been following this thread, but I might add that a loose prop can > lead to a worn cutless bearing which can lead to a scored shaft. > > Alan Bergen > 35 Mk III Thirsty > Rose City YC > Portland, OR > > > > On Thu, Aug 27, 2020 at 11:27 AM David Knecht via CnC-List > <cnc-list@cnc-list.com <mailto:cnc-list@cnc-list.com>> wrote: > We returned from our brief cruise yesterday and had no problems motoring. I > just finished a discussion with PYI to see whether the Maxprop could be the > cause of the vibration and they said the symptoms are consistent with the > Maxprop needing to be reconditioned. They said that if there is too much > wiggle in the blades, when subjected to loading and unloading in waves, the > blades can catch in slightly different places and that leads to vibration. > Going to reverse and then back to forward would reset the blade position. He > said I can test by seeing how much wiggle there is in the blades when locked > in forward. It should be less than 1/8”. More than 3/16” is a problem. I > may try to dive under to see, but likely will wait until haul in Fall. So I > think that is the likely cause of our vibration issue. > I am still unsure what the symptoms of a transmission needing rebuilding > would be. If anyone can speak to symptoms of that problem, I would > appreciate it as I suspect they are different. > > I should also note that I have always had a problem with the engine stalling > when I shift into reverse. I don’t know what is causing that (PYI did not > think it related to the prop) so if anyone has ideas I would love to hear > them. It is always nerve racking coming into a dock and worrying that I will > not be able to slow down. > > As to shift lever- it looks to me like the shifter is designed to be able to > attach in either orientation. I think that in order to match normal Edson > lever movement (down = forward) they had to put it on pointing down. In > order for that to work, they had to grind out some of the stringer. I > realize in retrospect that there is no way shifting could have worn that away > as you would not have been able to shift at all until it wore down some and > that would make no sense. But both my wife and I think that up is more > natural for forward gear, so I am happy with the change. > > > Dave > > S/V Aries > 1990 C&C 34+ > New London, CT > > <pastedGraphic.tiff> > > > _______________________________________________ > > Thanks everyone for supporting this list with your contributions. Each and > every one is greatly appreciated. If you want to support the list - use > PayPal to send contribution -- > https://urldefense.com/v3/__https://www.paypal.me/stumurray__;!!LIr3w8kk_Xxm!_cwu2IZ62KVSetW0HkRr1Td6TiPW__YcsiasCf7U7eUBiMlERrpnUnHJ3_mOZUSx0Eg$ > > <https://urldefense.com/v3/__https://www.paypal.me/stumurray__;!!LIr3w8kk_Xxm!_cwu2IZ62KVSetW0HkRr1Td6TiPW__YcsiasCf7U7eUBiMlERrpnUnHJ3_mOZUSx0Eg$> > > > _______________________________________________ > > Thanks everyone for supporting this list with your contributions. Each and > every one is greatly appreciated. If you want to support the list - use > PayPal to send contribution -- https://www.paypal.me/stumurray > <https://www.paypal.me/stumurray>
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