Boat leaking

Thread starter #1
Hey guys,
I have been noticing for quite a while now that my boat is taking on a lot of water everytime I go sailing. I tried a bubble test today: I tested all the fittings and screws as well as my gunwales. Nothing worked, I still don't know where it is leaking from. Any suggestions?
thanks in advance
 
#2
Did you notice any bubbles from the bottom of the mast step?
Because that is the main cause of leaks.
Otherwise I'm not sure what it could be.
 
#3
If you have an autobailer, make sure you bubble tested that area - especially if it hasn't been removed in a few years, the screw hole can let in a lot of water. If you are getting water over the deck, check mast step as advised above and inspection ports. You don't mention what year the boat is, but lastly make sure you test the drain plug in the transom - the North American boats with the screw in plugs have a rubber o-ring, when it's missing the plug leaks even when screwed in tight.
 
#4
i find that my boat usually leaks from cracks or dents or high wear places, not usually fittings if they are put in with the proper sealant, spray water every single places the hull touches something except for air. centerboard trunk mast step, etc there is where you will usually find the problem, 1992 laser, and still water tight
 
Thread starter #5
I checked the bottom of the mast step, the autobailer as well as everywhere on the hull. so very confused. 49208, i'm not sure what you are referring to when you say the drain plug in the transom: do you mean the one inside the cockpit or the one that drains the hull? btw my boat is a 2005
thanks
 
#6
The plug in the back of the boat, i had to replace mine about a month ago, i go to back out the screw and the screw head popped off of the screw shaft, really crappy quality. That may be a source of your leak, back out the screws, reseal with marine sealant ( i use 5200 but be very careful as it gets over everything, i suggest you mask the area.) and really get a good coating on the screws and the fitting when you put it back in. that may be the source of your leak.
 
Thread starter #7
The plug in the back of the boat, i had to replace mine about a month ago, i go to back out the screw and the screw head popped off of the screw shaft, really crappy quality. That may be a source of your leak, back out the screws, reseal with marine sealant ( i use 5200 but be very careful as it gets over everything, i suggest you mask the area.) and really get a good coating on the screws and the fitting when you put it back in. that may be the source of your leak.
It is alleready sealed pretty well.
is it possible that the drain in the cockpit is somehow leaking into the hull?
 
#8
yes, take the auto baler out and check the seal inside the cock pit and the auto baler screw in the hull, then refit the auto baler with new sealant and see if that fixes it
 
Thread starter #9
yes, take the auto baler out and check the seal inside the cock pit and the auto baler screw in the hull, then refit the auto baler with new sealant and see if that fixes it
I just did that last week it didn't make a difference. what i was wondering was does the fitting in the back of the cockpit where the rubber plug goes in go thru the hull and if it is a common place for a boat to leak from.
thanks
 
#11
It can leak on the cockpit drain, but you'll see that with the soapy water test. With the boat upside down, look for any telltale cracks in the bog (filler) between the hull and deck at the rails. Soap those areas again as well as let the soap solution drip down the daggerboard trunk, the joint there is just below the deck
 
Thread starter #15
and you have a O ring seal on your drain plug? oh and no gel coat cracks any where on the deck?
Not sure what a O ring seal on the drain plug is. And there is no cracks on the deck. There are some minor spider cracks on the hull around the daggerboard trunk but when I bubble tested them there was no bubbles.
 
Thread starter #18
Today I went down to the yacht club to see if I had the rubber seal and I dont so I took out the brass fitting so that I could silicone it back on. Well, it turns out that there is no way that can leack into the hull because there is no entrance into the hull from there. I also filled up my mast step with water to do that test and there is no water leaking from there. I guess I will test the daggerboard trunk again because it seems like that is the only possible place it could leak from. ( the gunnwales are sealed and I re-sealed all the fittings.)
 
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