A few years ago I dropped the
keel on my 1969
Columbia 36. I don't know if it was built the same as the 26. On the 36 the
keel is lead, but a harder alloy that allowed using 3/4" galvanized hanger bolts (wood screw thread on one end, machine screw on the other) instead of the "J" bolts usually used with lead. Since they are cast into the lead, J bolts are not replaceable. The nuts and bolt tops visible in the
bilge were rusty and rusty
water dripped out of the hull/keel joint on
haul out. This indicates the
sealant had failed and the bolts were likely in worse condition down in the
fiberglass where you can't see them. When I removed the nuts one of the bolts broke off proving this to be true. After removing the nuts I built a
wood 4x4 frame around the keel to prevent it falling over. The travel
lift then returned and lifted the
hull off the keel. I replaced all the remaining bolts with 316 stainless and "sistered" the broken one by drilling a new bolt hole next to it. (I couldn't get the old broken piece out of the original hole.) With the mating surfaces cleaned and new bolts in place I smeared on a thick layer of 3M 5200 and had the
hull lifted back onto the keel. Not too bad a job and total cost to me was only about $500 as I did all the
work myself except the lifting.