Bayview had this problem with all six boats You can grind out the keel box two ways 1. drop the keel out of the box using a crane 2. take the keel plate off put the boat in the water and lower the keel out of the way (not to far) Dremel works great to grind out the cracks , clean out all the debris I used Epoxy with 406 adhesive filler to fill the cracks, a syringe is helpful to inject into the cracks then put 2" tape over the cracks to keep the epoxy in place and the sanding to a minimum. Then spray a little gelcoat over that for looks I also put 10 thought bolts in the keel box (5 a side) ,the pictures I sent show 4 total around the wedge area of the box ,these are old photos. 5 bolts a side help keep the keelbox from moving or flexing , epoxy does not like to flex . In photo 001 you can see the bolts going thought to the G-10 which is a good backing plate to hold the keel box together I did countersink the bolts Drill the holes for the keel bolts first before you epoxy the cracks The epoxy putty USI uses is ok it works . but even a boat that sees very little use will eventually leak into the air tight compartment I will take some more pictures if any body would like to see the 10 bolt system Richard Hunt.
