I have to second Russs comment about truing the coupling. The engine will also need to be realigned as a part of the process.
When I replaced the bent prop shaft on my 38 a couple of years ago (foredeck crew was very apologetic about kicking a spin sheet over the side while clearing a fouled line after a race. I now have high tech floating spin sheets.), my repair included all that your friend is doing, and we also found that one of the mounting flanges for the motor mounts that is part of the bell housing was cracked when realigning the engine. (Happily, Westerbeke/Universal replaced the bell housing and paid for part of the repair as a warranty item.) Point being that this is not a repair that you should try to do on the cheap. Im curious as to why your friend is casting about for a shaft from the US? I looked at the Noonsight website, and there seem to be at least three repair yards/ marinas/ machine shops that are recommended for this type of repair in Georgetown. With all the boats in that area, surely there is a yard that can handle the whole process competently, and with a lot less hassle. Rick Brass Washington, NC From: CnC-List [mailto:[email protected]] On Behalf Of Russ & Melody via CnC-List Sent: Wednesday, February 18, 2015 11:25 PM To: Bruno Lachance; [email protected] Subject: Re: Stus-List Need help from a fellow Cnc listers in Florida Hi Bruno. If this has been mentioned then I missed it. Please tell your friend (Fred) that a very important step in a successful prop shaft install is to true the flange face with it mounted to the shaft. Even with a brand new custom shaft & brand new coupling half, it is good to true the face before install. The shaft is easily bent a wee bit in handling. The truing process is really basic in the machining world, even an apprentice might be tasked to it. Cheers, Russ Sweet 35 mk-1 At 04:10 PM 18/02/2015, you wrote: Hello listers, Thanks for the support, i received some good tips and it helps to limit potential errors. here is the update on the situation. the cutlass and drive saver plate are already on order. the most complicated part is to find or calculate the right lenght of the prop shaft. the actual broken one was new before departure last july, as is the PSS and the cutlass that will be replaces as a precaution. my friend wants to have all the parts, and then do the repair with the boat on a rustic travel lift nearby. the boat is a CS 36 Merlin 1988 with a Volvo engine, the transmission has a 4 inches flange. the shaft is 1 inch diameter and "about" 66 to 70 inches long. Mine is 44 on my 33mkII So its pretty long...The prop is a Martec So everything points to a standard SAE Taper That is usually found on our boats, the key is 1/4 and the coupling is actually a split coupling that could fit on a "on the spot home cut to the right lenght, not face fitted" shaft. but if he could have the shaft lenght from a good source, a new fitted coupling would be on order. I have been in contact with DeepBlue yacht supply in Fort Lauderdale and it seems easy to order from their website. there is 3-4 days production time before shipping. The good reviews from this list are reassuring. Thanks. SO, i am still looking for the original shaft lenght, are the CS plans available at the Maritime museum too? Any others sources for that info that i could get my hands on before tomorrow? I doubt Holland Marine has that info but will try tomorrow. ALSO, we are still looking for someone that could pickup the shaft at DeepBlue yacht supply and bring it few blocks away at Reggie Express services that Fly from there to Georgetown, Exumas. we want to save the additional shipping delay from UPS. Its just few kilometers away... Thanks for helping a fellow sailor and his family. the CS is still a very nice boat! Bruno Lachance Becassine,33 mkII Envoyé de mon iPad > Le 2015-02-18 à 17:44, Bill Connon via CnC-List <[email protected] <mailto:[email protected]> > a écrit : > > Chuck S via CnC-List wrote: >> Bruno, >> You are a very good friend. >> >> What make and model boat does your friend have? 1" Shaft". Length? Keyway dimensions? Taper for the prop? Cutless bearing OD and length? >> >> There is a slim chance someone on this list has replaced theirs so your friend may have to haul the boat, remove the shaft, measure everything and order the right parts? If he's doing all this he should also replace the piece of hose between the shaft log and the stuffing box if it's older than 10 years? >> >> I doubt anybody but the builder keeps prop shaft dimensions for a specific boat. Best of luck. >> >> Chuck >> Resolute >> 1990 C&C 34R >> Broad Creek, Magothy River, Md >> >> ------------------------------------------------------------------------ > I imagine that Bruno will be back with more details but in the meantime the boat involved is a CS Merlin 36 ft. long. If somebody knows of a CS newsgroup similar to our C&C group it could be of a big help. > > Bill > Caprice 1 > > > _______________________________________________ > > Email address: > [email protected] <mailto:[email protected]> > To change your list preferences, including unsubscribing -- go to the bottom of page at: > http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com > _______________________________________________ Email address: [email protected] <mailto:[email protected]> To change your list preferences, including unsubscribing -- go to the bottom of page at: http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com
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