Reply To: Mercury KD-4 Cast Aluminum gas tank seam leak

[Buccaneer]

Bill, thanks for your input. First I’ll see if I can get the bolts or nuts to budge that
hold the tank together. I know of no big belt sander in these parts, but wish
I had one bigger than my 4″ a few times!

I’ve had good luck so far with “gas tank sealer”, and if planned ahead, a
little $25 can could be used to seal two or three tanks, so that’s always
an option as well if things aren’t going well taking the tank apart.

While lying in bed, I was wondering about omitting the gasket as well,
and using something like Yamabond 4 sealer, for the crankcase halves. Not sure
what it’s specs say about gasoline though.

Prepare to be boarded!