That’s a lot to unpack. I am having trouble visualizing all this, but I am very interested, especially in the Last Drop seal, I hope you do one of your famous videos.
Bill Coleman From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Josh Muckley via CnC-List Sent: Tuesday, June 16, 2020 9:01 AM To: C&C List Cc: Josh Muckley Subject: Stus-List Shortening the shaft log by cutting 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
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