I completed the shaft install today. I ended up cutting off about 2.5 inches of shaft log. Everything else went pretty well.
https://drive.google.com/folderview?id=1FIKXswJLvlrxg3HOp2aJAqpqf-ib5i9g Josh Muckley S/V Sea Hawk 1989 C&C 37+ Solomons, MD On Tue, Jun 16, 2020, 09:02 Josh Muckley via CnC-List <cnc-list@cnc-list.com> wrote: > I've asked a few of you personally so if this is a repeat then please > disregard. > > I'm in the process of replacing/rebuilding the drive train on my C&C 37+. > In the process I'm replacing the shaft, shaft coupling, shaft seal and > strut bearing. > > The old seal was a PSS seal and the old coupling was a standard solid > coupling. I had had a R&D Marine (PYI) coupling dampener and planned to > reuse. The new seal is a Last Drop II from Sailor Sam's. The new coupling > is a split coupling from R&D Marine. The new seal and coupling have added > length which ultimately leaves only about 1.5 inches of free shaft at most. > > So here comes the question. > > First: Any concerns with only having 1.5 inches of free shaft? I have 3. > - getting the coupling dampener installed requires the couplings to be > separated by not just the thickness of the dampener buy rather by the > thickness of the coupling bolts. > - getting the split coupling on could be complicated > - with the shaft seal bottomed out on the log there is less articulation > available in the seal tube. The seal uses a delrin bearing to center > itself on the shaft but without room to flex the bearing will just ride > harder on the shaft and can even overheat. > > Second: > The seal engages with the shaft log by at least 4 inches. If I cut the > log shorter, then I could push the seal deeper onto the log and get a bit > more free shaft and room for the seal to articulate. Can any of you see > any drawbacks or pitfalls to cutting the log short? > > > Thanks, > > Josh Muckley > S/V Sea Hawk > 1989 C&C 37+ > Solomons, MD > _______________________________________________ > > 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 > >
_______________________________________________ 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
