I have 1970 MKII with original keel bolts. The nuts are stainless steel and we’re replaced at some point. Like yours, the bolts are also rusted but have been holding on for 52 years. My boat is in fresh water, which ads some life. I plan to replace the bolts within the next few years. Hope that helps.
Just removed my keel bolts from my 1970s Mark 2 and they appear to be in good shape. my concern was that my metal plate was corroded which I wanted to replace.
Any idea what's in the bottom of the hole and if there is a proper way to reassemble and if any torquer specs?
