Need to careen a CD28, any experiences?

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denny

Need to careen a CD28, any experiences?

Post by denny »

I am getting ready to careen my CD28 to repair a leaking shaft log. I have never careened this boat before and question if there are problems to watch out for beside the obvious like fuel tank vents, batteries, etc. Thanks for any replies.



denny@nations.net
Stephen Crampton

Re: Need to careen a CD28, any experiences?

Post by Stephen Crampton »

denny wrote: I am getting ready to careen my CD28 to repair a leaking shaft log.
What is careening? If it means drawing the water holding the boat away and letting it sit on its side on the bottom, I wonder if you would be better off just having a boatyard travellift the boat and set it on stands. Seems a lot less risky. Consider the effect of the new weight distribution on the standing rigging, as well as the hull and deck.

Also, "a leaking shaft log"? Are you sure you're not talking about a leaking stuffing box? If the problem is the stuffing box, you may only need a few hours for a fix. In that case, it can be done in the travellift and the boat put back in the water quickly.

If you are trying to save money by not using the travellift, perhaps you can dive behind the transom and temporarily seal the shaft log from the outside with some sort of patch, like the type used for hull breaches. Make sure you attempt this at a time when you can get help quickly if needed (from the travellift and/or powerful pumps). Then you can replace the flax, if that is the problem.

If you need to replace the entire stuffing box, then you will have to remove the prop shaft. While the boat is still in the water, you may be able to pull the shaft from its flange by placing a short piece of tubing between the two facing flanges and slowly tightening the nuts (technique suggested in Nigel Calder's book). Make sure you have one (or better, two) hose clamps around the shaft to make sure it doesn't just slide out of the boat when it pops out of the flange. Once the prop shaft is ready to be removed, the rest if the job is a cinch: prop shaft out, replace stuffing box (or its components, e.g., flexible hose), prop shaft back in place. If you have a new stuffing box in hand, it should take less than an hour out of the water.

If the problem is the shaft log (the fiberglass tube glassed into the keel), then you are going to need several days at least out of the water, so that the hull can dry before repairs are attempted. I would have the boat put on stands.

Good luck,
Stephen



sailing@star.net
Russ Campbell

Re: Need to careen a CD28, any experiences?

Post by Russ Campbell »

denny wrote: I am getting ready to careen my CD28 to repair a leaking shaft log. I have never careened this boat before and question if there are problems to watch out for beside the obvious like fuel tank vents, batteries, etc. Thanks for any replies.
Denny, I have replaced my shaft with the boat in the water. I just put a plastic bag over the hole. The water pressure is not that great.If you know the formula you can figure it out. You should stand by to man the pumps just in case but I had the shaft out of it for almost 2 hours and never had to run the bilge pump until we finished the whole operation.
I'm not sure though what you mean by careening or what you mean by your shaft log. I personally would take the advise of having it lifted with a travel lift if it needed to be out of the water any length of time. Good luck
Russ



camroll@together.net
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