Making the keel bolt backing plates
As noted in an earlier picture the nuts on this keel were not properly seated to the bottom of the bilge. I had to come up with a way of correcting this. First we felt that just using a washer was not realy the best way to go so I bought some ½” thick stainless steel plate from McMaster- Carr. I machined some plates aprox 4”X 4” and in some cases I needed to add some angular cuts to get the plates to sit flat in the bilge. I made the holes in the plate the same as the holes in the hull 1 3/16” . Once the plates were all made I prepaired to put them in place with a mixture of West System high density filler and Colloidal Silaca. Each hole was a project in it self for the plates were machined to fit each hole. First I sanded and cleaned the surronding area. I then put a thin layer of epoxy down and waited until it became somewhat tacky. After mixing the west system filler with the epoxy I put down a good sized glob of the stuff a little less than 1 ” thick. Next a few pieces of wax paper was placed on top of the epoxy putty and the stainless plate was placed on top of the wax paper. I pressed down on the plate keeping is as flat as possible then I pushed a 1” bolt thru the hole in the plate and thru the hole in the hull till it sit on a small bench that I had positioned under the boat. There was a good amount of bolt sticking out of the plate inside the boat at this point. I took a small machinists square and used it to make sure that the plate was square to the bolt coming through the bottom of the boat so that the nuts would sit as flat as possible when everything was put together. When the plate was in the correct position I moved on to the next hole and let the previous one cure to a solid pad. This procedure took some time as there were 7 holes and was this ever a messy sticky affair. It turned out to be a good thing that I asked for my old keel bolts from Broomfeild for it turned out that I really needed them. When the epoxy cured I was able to pull the plates off the epoxy and remove the wax paper as well as the bolts that I had coated with a light layer of candle wax. Finally I had to re drill the excess epoxy that had remained in the bolt holes. During this whole operation I wasn't absolutely sure this process was going to work especially when my hands were sticking to everything and the plates kept moving the wrong way but I think in the end everything worked out ok. Here are some pictures of the whole sticky affair. WHAT A MESS !






