1991 Hunter 28 my starboard chain plate is leaking water into to cabin, it doesn't look too difficult to repair. Secure mast with main and spinnaker halyard starboard side, mark turn buckle thread positions remove and remove chain plate by removing the four exterior screws and loosen the large nut in the cabin and it should screw out - right? Also what type of sealant should I use ? If I'm going about this wrong or leaving something out, please advise. Thanks Misty Seas Ventura Harbor, CA.