Finally had the time and funds to do some repairs on my 1982 Mark Twain after 2 years of it sitting. When I pulled it out of the barn, I noticed that there was antifreeze in the bottom of the hull that I didn't remember being there when I winterized it. When I extracted the oil all but the first quart was chocolate milk. Is it worth trying to repair the issue or are the bearings toast at this point since they have been sitting in water for up to 2 years? I have a feeling the manifolds and/or risers rusted out on me. The engine is completely original besides the carb and ignition components.