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Author
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Topic: Leaky hull
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Canadian Sailor
unregistered
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posted August 14, 2004 01:42 PM
My Bronze Sailing instructor recommended me the "bubble treatment" for finding cracks in my CL 16 hull. It involves washing and rinsing the hull with soap. Then putting a vaccum cleaner in the hull and setting it to blow, bubbles should appear where there are cracks in the hull. I don't know what to do to the cracks though. I'm planning on doing this since the last time I went sailing in my boat, when we brought it out, it was full of water.I'm just inquiring as to what any of you have done in the past, and where you have experienced cracks, also, what do I rest my boat on? As I remember, there shouldn't be any weight on the splashboard, right? any suggestions? ------------------
Canadian Sailor ;)
"Before you criticize someone, you should walk a mile in their shoes. That way, when you
criticize them, you're a mile away and you have their shoes."
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Tom D CL16
Member
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posted August 15, 2004 12:44 PM
 
With that much water in the boat after an afternoon sail. I would think you could see the problem with the boat turned over.
I have used saw horses with padding for support my CL16.
Look near the centerboard slot and near the two skeg keels, that is a weak spot in the hull.
As to repairs it depends on what the extent of damage is. Check the centerboard pivot bolt area.
If all else fails check the drain plug.
Tom D.
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Canadian Sailor
unregistered
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posted August 15, 2004 02:11 PM
Thanks. I'm guessing that since the hull isn't exposed to the sun, I wouldn't have to paint over any fiberglass repairs right?I thought the drain plug at first, but then I realised that there was no water in the lazarette, just in the hull itself, so it couldn't be that.
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Sunday Sailor
Member
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posted August 15, 2004 09:56 PM
A year ago, I had to chase down a similar leak in my hull. Someone on this board recommended that I use a hose to add water to the bilge when the boat is on its trailer. Then look under the trailer for where the water is coming out of the hull.It worked like a charm.
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Canadian Sailor
unregistered
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posted August 16, 2004 09:37 PM
That would work great, 'specially since it involves not lifting the boat off the trailer, something I can't do with my aged parents.
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Canadian Sailor
unregistered
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posted August 17, 2004 09:53 PM
Did it today. Results inconclusive.I filled the hull up until past the pivot bolt. CHecking underneath, there was some water dripping from the bolt, but certainly not enough to fill the boat with the amount of water I experienced. also some on the keel, but since more didn't appear, I think it was from washing bat guano off the deck. I lifted the boat up so the water would go to the back, then put a rock on top of my cinder block so as to keep it up at that general height. After inspecting down below, I found nothing. since these showed nothing, I now suspect *the loop on the bow, looks like it's been repaired with some sort of putty, but that's coming off. *loose screws in the fairlead track (will post new topic about this) *loose bottom gudgeon on transom. Since there was no water in the lazarette when we took the boat out, this is disproved, still, I will tighten it. *could it be possible that spider cracks around the auto-bailers let water through to the hull? Why are there so many cracks there anyway? Thanks for your help. ------------------
Canadian Sailor ;)
"Before you criticize someone, you should walk a mile in their shoes. That way, when you
criticize them, you're a mile away and you have their shoes."
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Steve
Member
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posted May 05, 2005 05:05 PM
I have found that the source is usually the centreboard pivot bolt. I saw you mentioned that, but ...The water inside the hull makes for some whale-like heeling. -Steve
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Canadian Sailor
unregistered
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posted May 06, 2005 11:15 PM
Yeah, I can remember that day heeling in winds that normally shouldn't have done that much. My biggest annoyance that day was having the mainsheet suddenly come loose when going upwind in a fairly stiff breeze. Staying in irons was not simple with a crew of the inexperienced while I tried to retie the bowline onto the flapping boom.
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bobc
Member
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posted May 13, 2005 10:32 AM
Just my two cents; I found that the foam under my cockpit floor was absorbing water from a leaky centerboard bolt. I don't know if thats whats hapening in your case , but something to keep in mind. The old foam was not closed cell type. I ripped it all out and replaced it with closed cell type in the bow and lazarette.
I was surprised how much water in that foam.
------------------
Bob Crowley
Luna #486
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henning
Member
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posted May 13, 2005 11:00 PM
I too was getting water sub-sole in my CL 16. I pulled the bottom rudder gudgeon off the transom, and the drain-plug housing. I was surprised to find that the plywood backing in the area around the plug was rotted somewhat. The bottom stainless screw on the gudgeon plate is not a machine screw, and was not really biting into anything to provide a secure seal for the plate. I made a cork gasket for the plate, and replaced the bottom screw with a machine screw; can just get a finger into the plug hole to hold the nut/washer onto the machine screw to tighten it up. This seems to have made a big difference. I think it is important to make sure this fitting is sealed as it is underwater most of the time.
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