How to repair hull deck leak Hunter 340 (inside or outside?)

[tallgeoff]

I have a leak in my aft cabin, port side near the window. I believe I have the source in the deck/hull joint as I have found a dirty brown area in the white caulking about 2 in long. The rest of the long joint is white.

I have had several opinions on repair method. A major decision is whether to open the rub rail on the outside and seal from there or leave it alone and seal from the inside.

The rub rail is the older style without a steel band and screws - it is simply a pressure snap seal. The rail is also one continuous piece from the stern to the bow. It was suggested to cut the rub rail on one side of the leak, peel back, seal and repush the rail into place. This will leave a cut line in the rubrail and I'm concerned the rail may not push back into place given its age.

If possible I'd prefer to work from the interior.

Does anyone have experience and can outline a procedure? I am not very experienced in doing boat repairs so a step by step would be helpful.

Thanks everyone.

(I remember posts on this topic but could not find them).

 

[Andy1237]

Re: How to repair hull deck leak Hunter 340 (inside or outsi

Before you get drastic, check the arch. Is yours the fiberglass or stainless steel? Seems that a leak around the arch fittings might be flowing into the cabin.

 

[seadaddler]

Hunter marine

I had a rub rail leak on my 2001 290 right at the stern ladder and when I found a boat yard in NY to pull the boat and fix it Hunter sent them all the info how to repair.
Mine was below the waterline and they put the boat on jack stands and removed the rub rail and put wedges in and applied new sealer and than everything back together and was good to go.
Email Hunter and I think they can walk you through the repair,try running a bead across the the top seam with sealer but wait and see what Hunter says first.
Nick