Reply To: Mercury KB-1A gas tank leaks

[billw]

I took a KD3 tank to an automotive machine shop, years back. They surfaced the halves on their giant, foot-wide, horizontal belt sander, used for truing up cylinder heads. It took him five minutes, tops, and he charged me twenty bucks. But it would have taken me HOURS of aggravation, so it was a win-win for the tech and for me. I used anaerobic sealant, like for a crank case, on the flanges. It worked long enough for a successful, hour-long boat ride, then the tank was drained, the engine pickled and it was on to the next engine. I don’t know if the sealant would work indefinitely, or not. I have also made thin gaskets for those tanks, which is very tedious, but worked to seal it.

Long live American manufacturing!